+2003-06-06 Benjamin Kosnik <bkoz@redhat.com>
+
+ * include/bits/stl_alloc.h: Cleanups.
+ * include/ext/functional: Same.
+ * include/ext/hash_map: Same.
+ * include/ext/hash_set: Same.
+ * include/ext/iterator: Same.
+ * include/ext/memory: Same.
+ * include/ext/numeric: Same.
+ * include/ext/rb_tree: Same.
+ * include/ext/ropeimpl.h: Same.
+ * include/ext/slist: Same.
+ * include/ext/stdio_filebuf.h: Same.
+ * include/ext/stdio_sync_filebuf.h: Same.
+ * include/ext/stl_rope.h: Move to...
+ * include/ext/rope: ...here.
+ * include/ext/stl_hash_fun.h: Move to...
+ * include/ext/hash_fun.h: ...here.
+ * include/ext/stl_hashtable.h: Move to...
+ * include/ext/hashtable.h: ...here.
+ * include/backward/hashtable.h: Reflect new names.
+ * include/Makefile.am: Same.
+ * include/Makefile.in: Regenerated.
+
2003-06-05 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/9024
${ext_srcdir}/rope \
${ext_srcdir}/ropeimpl.h \
${ext_srcdir}/slist \
- ${ext_srcdir}/stl_hash_fun.h \
- ${ext_srcdir}/stl_hashtable.h \
- ${ext_srcdir}/stl_rope.h
+ ${ext_srcdir}/hash_fun.h \
+ ${ext_srcdir}/hashtable.h
+
# This is the common subset of files that all three "C" header models use.
c_base_srcdir = @C_INCLUDE_DIR@
enable_static = @enable_static@
glibcpp_CXX = @glibcpp_CXX@
glibcpp_MOFILES = @glibcpp_MOFILES@
+glibcpp_PCHFLAGS = @glibcpp_PCHFLAGS@
glibcpp_POFILES = @glibcpp_POFILES@
glibcpp_basedir = @glibcpp_basedir@
glibcpp_localedir = @glibcpp_localedir@
${ext_srcdir}/rope \
${ext_srcdir}/ropeimpl.h \
${ext_srcdir}/slist \
- ${ext_srcdir}/stl_hash_fun.h \
- ${ext_srcdir}/stl_hashtable.h \
- ${ext_srcdir}/stl_rope.h
+ ${ext_srcdir}/hash_fun.h \
+ ${ext_srcdir}/hashtable.h
# This is the common subset of files that all three "C" header models use.
#define _CPP_BACKWARD_HASHTABLE_H 1
#include "backward_warning.h"
-#include <ext/stl_hashtable.h>
+#include <ext/hashtable.h>
#include "algo.h"
#include "alloc.h"
#include "vector.h"
#include <cstring>
#include <bits/functexcept.h> // For __throw_bad_alloc
#include <bits/stl_threads.h>
-
#include <bits/atomicity.h>
namespace std
}
}
- // Should not be referenced within the library anymore.
- typedef __new_alloc __mem_interface;
/**
* @if maint
*/
#ifndef _EXT_FUNCTIONAL
-#define _EXT_FUNCTIONAL
+#define _EXT_FUNCTIONAL 1
#pragma GCC system_header
+
#include <functional>
namespace __gnu_cxx
inline const_mem_fun1_ref_t<_Ret,_Tp,_Arg>
mem_fun1_ref(_Ret (_Tp::*__f)(_Arg) const)
{ return const_mem_fun1_ref_t<_Ret,_Tp,_Arg>(__f); }
-
} // namespace __gnu_cxx
-#endif /* _EXT_FUNCTIONAL */
+#endif
// 'struct hash' from SGI -*- C++ -*-
-// Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
*
*/
-/** @file ext/stl_hash_fun.h
+/** @file ext/hash_fun.h
* This file is a GNU extension to the Standard C++ Library (possibly
* containing extensions from the HP/SGI STL subset). You should only
* include this header if you are using GCC 3 or later.
*/
-#ifndef _CPP_BITS_STL_HASH_FUN_H
-#define _CPP_BITS_STL_HASH_FUN_H 1
+#ifndef _HASH_FUN_H
+#define _HASH_FUN_H 1
#include <cstddef>
namespace __gnu_cxx
{
-using std::size_t;
+ using std::size_t;
+
+ template <class _Key> struct hash { };
+
+ inline size_t
+ __stl_hash_string(const char* __s)
+ {
+ unsigned long __h = 0;
+ for ( ; *__s; ++__s)
+ __h = 5*__h + *__s;
+ return size_t(__h);
+ }
+
+ template<> struct hash<char*>
+ {
+ size_t operator()(const char* __s) const
+ { return __stl_hash_string(__s); }
+ };
+
+ template<> struct hash<const char*>
+ {
+ size_t operator()(const char* __s) const
+ { return __stl_hash_string(__s); }
+ };
-template <class _Key> struct hash { };
+ template<> struct hash<char>
+ { size_t operator()(char __x) const { return __x; } };
-inline size_t __stl_hash_string(const char* __s)
-{
- unsigned long __h = 0;
- for ( ; *__s; ++__s)
- __h = 5*__h + *__s;
-
- return size_t(__h);
-}
+ template<> struct hash<unsigned char>
+ { size_t operator()(unsigned char __x) const { return __x; } };
-template<> struct hash<char*>
-{
- size_t operator()(const char* __s) const { return __stl_hash_string(__s); }
-};
+ template<> struct hash<signed char>
+ { size_t operator()(unsigned char __x) const { return __x; } };
-template<> struct hash<const char*>
-{
- size_t operator()(const char* __s) const { return __stl_hash_string(__s); }
-};
-
-template<> struct hash<char> {
- size_t operator()(char __x) const { return __x; }
-};
-template<> struct hash<unsigned char> {
- size_t operator()(unsigned char __x) const { return __x; }
-};
-template<> struct hash<signed char> {
- size_t operator()(unsigned char __x) const { return __x; }
-};
-template<> struct hash<short> {
- size_t operator()(short __x) const { return __x; }
-};
-template<> struct hash<unsigned short> {
- size_t operator()(unsigned short __x) const { return __x; }
-};
-template<> struct hash<int> {
- size_t operator()(int __x) const { return __x; }
-};
-template<> struct hash<unsigned int> {
- size_t operator()(unsigned int __x) const { return __x; }
-};
-template<> struct hash<long> {
- size_t operator()(long __x) const { return __x; }
-};
-template<> struct hash<unsigned long> {
- size_t operator()(unsigned long __x) const { return __x; }
-};
+ template<> struct hash<short>
+ { size_t operator()(short __x) const { return __x; } };
-} // namespace __gnu_cxx
+ template<> struct hash<unsigned short>
+ { size_t operator()(unsigned short __x) const { return __x; } };
+
+ template<> struct hash<int>
+ { size_t operator()(int __x) const { return __x; } };
+
+ template<> struct hash<unsigned int>
+ { size_t operator()(unsigned int __x) const { return __x; } };
-#endif /* _CPP_BITS_STL_HASH_FUN_H */
+ template<> struct hash<long>
+ { size_t operator()(long __x) const { return __x; } };
+
+ template<> struct hash<unsigned long>
+ { size_t operator()(unsigned long __x) const { return __x; } };
+} // namespace __gnu_cxx
-// Local Variables:
-// mode:C++
-// End:
+#endif
* include this header if you are using GCC 3 or later.
*/
-#ifndef __SGI_STL_INTERNAL_HASH_MAP_H
-#define __SGI_STL_INTERNAL_HASH_MAP_H
+#ifndef _HASH_MAP
+#define _HASH_MAP 1
-#include <ext/stl_hashtable.h>
+#include <ext/hashtable.h>
#include <bits/concept_check.h>
namespace __gnu_cxx
{
-using std::equal_to;
-using std::allocator;
-using std::pair;
-using std::_Select1st;
-
-// Forward declaration of equality operator; needed for friend declaration.
-
-template <class _Key, class _Tp,
- class _HashFcn = hash<_Key>,
- class _EqualKey = equal_to<_Key>,
- class _Alloc = allocator<_Tp> >
-class hash_map;
-
-template <class _Key, class _Tp, class _HashFn, class _EqKey, class _Alloc>
-inline bool operator==(const hash_map<_Key, _Tp, _HashFn, _EqKey, _Alloc>&,
- const hash_map<_Key, _Tp, _HashFn, _EqKey, _Alloc>&);
+ using std::equal_to;
+ using std::allocator;
+ using std::pair;
+ using std::_Select1st;
+
+ // Forward declaration of equality operator; needed for friend
+ // declaration.
+ template<class _Key, class _Tp, class _HashFcn = hash<_Key>,
+ class _EqualKey = equal_to<_Key>, class _Alloc = allocator<_Tp> >
+ class hash_map;
+
+ template<class _Key, class _Tp, class _HashFn, class _EqKey, class _Alloc>
+ inline bool operator==(const hash_map<_Key, _Tp, _HashFn, _EqKey, _Alloc>&,
+ const hash_map<_Key, _Tp, _HashFn, _EqKey, _Alloc>&);
/**
* This is an SGI extension.
* @ingroup SGIextensions
insert_iterator<_Container>& operator++() { return *this; }
insert_iterator<_Container>& operator++(int) { return *this; }
};
-
} // namespace std
-#endif /* __SGI_STL_INTERNAL_HASH_MAP_H */
-
-// Local Variables:
-// mode:C++
-// End:
+#endif
* include this header if you are using GCC 3 or later.
*/
-#ifndef __SGI_STL_INTERNAL_HASH_SET_H
-#define __SGI_STL_INTERNAL_HASH_SET_H
+#ifndef _HASH_SET
+#define _HASH_SET 1
-#include <ext/stl_hashtable.h>
+#include <ext/hashtable.h>
#include <bits/concept_check.h>
namespace __gnu_cxx
{
-using std::equal_to;
-using std::allocator;
-using std::pair;
-using std::_Identity;
-
-// Forward declaration of equality operator; needed for friend declaration.
-
-template <class _Value,
- class _HashFcn = hash<_Value>,
- class _EqualKey = equal_to<_Value>,
- class _Alloc = allocator<_Value> >
-class hash_set;
-
-template <class _Value, class _HashFcn, class _EqualKey, class _Alloc>
-inline bool
-operator==(const hash_set<_Value,_HashFcn,_EqualKey,_Alloc>& __hs1,
- const hash_set<_Value,_HashFcn,_EqualKey,_Alloc>& __hs2);
+ using std::equal_to;
+ using std::allocator;
+ using std::pair;
+ using std::_Identity;
+
+ // Forward declaration of equality operator; needed for friend
+ // declaration.
+ template <class _Value, class _HashFcn = hash<_Value>,
+ class _EqualKey = equal_to<_Value>,
+ class _Alloc = allocator<_Value> >
+ class hash_set;
+
+ template <class _Value, class _HashFcn, class _EqualKey, class _Alloc>
+ inline bool
+ operator==(const hash_set<_Value,_HashFcn,_EqualKey,_Alloc>& __hs1,
+ const hash_set<_Value,_HashFcn,_EqualKey,_Alloc>& __hs2);
/**
* This is an SGI extension.
insert_iterator<_Container>& operator++() { return *this; }
insert_iterator<_Container>& operator++(int) { return *this; }
};
-
} // namespace std
-#endif /* __SGI_STL_INTERNAL_HASH_SET_H */
-
-// Local Variables:
-// mode:C++
-// End:
+#endif
*
*/
-/** @file ext/stl_hashtable.h
+/** @file ext/hashtable.h
* This file is a GNU extension to the Standard C++ Library (possibly
* containing extensions from the HP/SGI STL subset). You should only
* include this header if you are using GCC 3 or later.
*/
-#ifndef __SGI_STL_INTERNAL_HASHTABLE_H
-#define __SGI_STL_INTERNAL_HASHTABLE_H
+#ifndef _HASHTABLE_H
+#define _HASHTABLE_H 1
// Hashtable class, used to implement the hashed associative containers
// hash_set, hash_map, hash_multiset, and hash_multimap.
#include <iterator>
#include <bits/stl_algo.h>
#include <bits/stl_function.h>
-#include <ext/stl_hash_fun.h>
+#include <ext/hash_fun.h>
namespace __gnu_cxx
{
const hashtable<_Val,_Key,_HF,_Ex,_Eq,_All>& __ht2);
-// Hashtables handle allocators a bit differently than other containers
-// do. If we're using standard-conforming allocators, then a hashtable
-// unconditionally has a member variable to hold its allocator, even if
-// it so happens that all instances of the allocator type are identical.
-// This is because, for hashtables, this extra storage is negligible.
-// Additionally, a base class wouldn't serve any other purposes; it
-// wouldn't, for example, simplify the exception-handling code.
+// Hashtables handle allocators a bit differently than other
+// containers do. If we're using standard-conforming allocators, then
+// a hashtable unconditionally has a member variable to hold its
+// allocator, even if it so happens that all instances of the
+// allocator type are identical. This is because, for hashtables,
+// this extra storage is negligible. Additionally, a base class
+// wouldn't serve any other purposes; it wouldn't, for example,
+// simplify the exception-handling code.
template <class _Val, class _Key, class _HashFcn,
class _ExtractKey, class _EqualKey, class _Alloc>
__throw_exception_again;
}
}
-
} // namespace __gnu_cxx
-#endif /* __SGI_STL_INTERNAL_HASHTABLE_H */
-
-// Local Variables:
-// mode:C++
-// End:
+#endif
*/
#ifndef _EXT_ITERATOR
-#define _EXT_ITERATOR
+#define _EXT_ITERATOR 1
#pragma GCC system_header
+
#include <bits/concept_check.h>
#include <iterator>
namespace __gnu_cxx
{
-
- // There are two signatures for distance. In addition to the one taking
- // two iterators and returning a result, there is another taking two
- // iterators and a reference-to-result variable, and returning nothing.
- // The latter seems to be an SGI extension. -- pedwards
+ // There are two signatures for distance. In addition to the one
+ // taking two iterators and returning a result, there is another
+ // taking two iterators and a reference-to-result variable, and
+ // returning nothing. The latter seems to be an SGI extension.
+ // -- pedwards
template<typename _InputIterator, typename _Distance>
inline void
__distance(_InputIterator __first, _InputIterator __last,
// concept requirements -- taken care of in __distance
__distance(__first, __last, __n, std::__iterator_category(__first));
}
-
} // namespace __gnu_cxx
-#endif /* _EXT_ITERATOR */
+#endif
*/
#ifndef _EXT_MEMORY
-#define _EXT_MEMORY
+#define _EXT_MEMORY 1
#pragma GCC system_header
+
#include <memory>
#include <bits/stl_tempbuf.h>
using std::__iterator_category;
using std::_Temporary_buffer;
-
template<typename _InputIter, typename _Size, typename _ForwardIter>
pair<_InputIter, _ForwardIter>
__uninitialized_copy_n(_InputIter __first, _Size __count,
- _ForwardIter __result,
- std::input_iterator_tag)
+ _ForwardIter __result, std::input_iterator_tag)
{
_ForwardIter __cur = __result;
- try {
- for ( ; __count > 0 ; --__count, ++__first, ++__cur)
- std::_Construct(&*__cur, *__first);
- return pair<_InputIter, _ForwardIter>(__first, __cur);
- }
+ try
+ {
+ for ( ; __count > 0 ; --__count, ++__first, ++__cur)
+ std::_Construct(&*__cur, *__first);
+ return pair<_InputIter, _ForwardIter>(__first, __cur);
+ }
catch(...)
{
std::_Destroy(__result, __cur);
__throw_exception_again;
}
}
-
+
template<typename _RandomAccessIter, typename _Size, typename _ForwardIter>
inline pair<_RandomAccessIter, _ForwardIter>
__uninitialized_copy_n(_RandomAccessIter __first, _Size __count,
- _ForwardIter __result,
+ _ForwardIter __result,
std::random_access_iterator_tag)
{
_RandomAccessIter __last = __first + __count;
template<typename _InputIter, typename _Size, typename _ForwardIter>
inline pair<_InputIter, _ForwardIter>
__uninitialized_copy_n(_InputIter __first, _Size __count,
- _ForwardIter __result) {
+ _ForwardIter __result)
+ {
return __uninitialized_copy_n(__first, __count, __result,
__iterator_category(__first));
}
template<typename _InputIter, typename _Size, typename _ForwardIter>
inline pair<_InputIter, _ForwardIter>
uninitialized_copy_n(_InputIter __first, _Size __count,
- _ForwardIter __result) {
+ _ForwardIter __result)
+ {
return __uninitialized_copy_n(__first, __count, __result,
__iterator_category(__first));
}
*
* @ingroup SGIextensions
*/
- template <class _ForwardIterator,
- class _Tp
+ template <class _ForwardIterator, class _Tp
= typename std::iterator_traits<_ForwardIterator>::value_type >
struct temporary_buffer : public _Temporary_buffer<_ForwardIterator, _Tp>
{
/// Requests storage large enough to hold a copy of [first,last).
temporary_buffer(_ForwardIterator __first, _ForwardIterator __last)
- : _Temporary_buffer<_ForwardIterator, _Tp>(__first, __last) {}
+ : _Temporary_buffer<_ForwardIterator, _Tp>(__first, __last) { }
+
/// Destroys objects and frees storage.
- ~temporary_buffer() {}
+ ~temporary_buffer() { }
};
-
} // namespace __gnu_cxx
-#endif /* _EXT_MEMORY */
+#endif
*/
#ifndef _EXT_NUMERIC
-#define _EXT_NUMERIC
+#define _EXT_NUMERIC 1
#pragma GCC system_header
+
#include <bits/concept_check.h>
#include <numeric>
namespace __gnu_cxx
{
// Returns __x ** __n, where __n >= 0. _Note that "multiplication"
- // is required to be associative, but not necessarily commutative.
-
+ // is required to be associative, but not necessarily commutative.
template<typename _Tp, typename _Integer, typename _MonoidOperation>
_Tp
__power(_Tp __x, _Integer __n, _MonoidOperation __monoid_op)
__power(_Tp __x, _Integer __n)
{ return __power(__x, __n, std::multiplies<_Tp>()); }
- // Alias for the internal name __power. Note that power is an extension,
- // not part of the C++ standard.
-
/**
* This is an SGI extension.
* @ingroup SGIextensions
* @doctodo
*/
+ // Alias for the internal name __power. Note that power is an extension,
+ // not part of the C++ standard.
template<typename _Tp, typename _Integer, typename _MonoidOperation>
inline _Tp
power(_Tp __x, _Integer __n, _MonoidOperation __monoid_op)
power(_Tp __x, _Integer __n)
{ return __power(__x, __n); }
- // iota is not part of the C++ standard. It is an extension.
-
/**
* This is an SGI extension.
* @ingroup SGIextensions
* @doctodo
*/
+ // iota is not part of the C++ standard. It is an extension.
template<typename _ForwardIter, typename _Tp>
void
iota(_ForwardIter __first, _ForwardIter __last, _Tp __value)
while (__first != __last)
*__first++ = __value++;
}
-
} // namespace __gnu_cxx
-#endif /* _EXT_NUMERIC */
+#endif
* include this header if you are using GCC 3 or later.
*/
-#ifndef _EXT_RB_TREE
-#define _EXT_RB_TREE
+#ifndef _RB_TREE
+#define _RB_TREE 1
#pragma GCC system_header
+
#include <bits/stl_tree.h>
namespace __gnu_cxx
{
-using std::_Rb_tree;
-using std::allocator;
-
-// Class rb_tree is not part of the C++ standard. It is provided for
-// compatibility with the HP STL.
-
-/**
- * This is an SGI extension.
- * @ingroup SGIextensions
- * @doctodo
-*/
-template <class _Key, class _Value, class _KeyOfValue, class _Compare,
- class _Alloc = allocator<_Value> >
-struct rb_tree : public _Rb_tree<_Key, _Value, _KeyOfValue, _Compare, _Alloc>
-{
- typedef _Rb_tree<_Key, _Value, _KeyOfValue, _Compare, _Alloc> _Base;
- typedef typename _Base::allocator_type allocator_type;
-
- rb_tree(const _Compare& __comp = _Compare(),
- const allocator_type& __a = allocator_type())
- : _Base(__comp, __a) {}
+ using std::_Rb_tree;
+ using std::allocator;
- ~rb_tree() {}
-};
+ // Class rb_tree is not part of the C++ standard. It is provided for
+ // compatibility with the HP STL.
+ /**
+ * This is an SGI extension.
+ * @ingroup SGIextensions
+ * @doctodo
+ */
+ template <class _Key, class _Value, class _KeyOfValue, class _Compare,
+ class _Alloc = allocator<_Value> >
+ struct rb_tree : public _Rb_tree<_Key, _Value, _KeyOfValue, _Compare, _Alloc>
+ {
+ typedef _Rb_tree<_Key, _Value, _KeyOfValue, _Compare, _Alloc> _Base;
+ typedef typename _Base::allocator_type allocator_type;
+
+ rb_tree(const _Compare& __comp = _Compare(),
+ const allocator_type& __a = allocator_type())
+ : _Base(__comp, __a) { }
+
+ ~rb_tree() { }
+ };
} // namespace __gnu_cxx
-#endif /* _EXT_RB_TREE */
+#endif
* include this header if you are using GCC 3 or later.
*/
-#ifndef __SGI_STL_ROPE
-#define __SGI_STL_ROPE
+#ifndef _ROPE
+#define _ROPE 1
#include <bits/stl_algobase.h>
#include <bits/stl_algo.h>
#include <bits/stl_alloc.h>
#include <bits/stl_construct.h>
#include <bits/stl_uninitialized.h>
-#include <ext/stl_hash_fun.h>
-#include <ext/stl_rope.h>
+#include <ext/hash_fun.h>
-#endif /* __SGI_STL_ROPE */
-// Local Variables:
-// mode:C++
-// End:
+# ifdef __GC
+# define __GC_CONST const
+# else
+# include <bits/stl_threads.h>
+# define __GC_CONST // constant except for deallocation
+# endif
+
+#include <ext/memory> // For uninitialized_copy_n
+
+namespace __gnu_cxx
+{
+using std::size_t;
+using std::ptrdiff_t;
+using std::allocator;
+using std::iterator;
+using std::reverse_iterator;
+using std::_Alloc_traits;
+using std::_Destroy;
+using std::_Refcount_Base;
+
+// The _S_eos function is used for those functions that
+// convert to/from C-like strings to detect the end of the string.
+
+// The end-of-C-string character.
+// This is what the draft standard says it should be.
+template <class _CharT>
+inline _CharT _S_eos(_CharT*) { return _CharT(); }
+
+// Test for basic character types.
+// For basic character types leaves having a trailing eos.
+template <class _CharT>
+inline bool _S_is_basic_char_type(_CharT*) { return false; }
+template <class _CharT>
+inline bool _S_is_one_byte_char_type(_CharT*) { return false; }
+
+inline bool _S_is_basic_char_type(char*) { return true; }
+inline bool _S_is_one_byte_char_type(char*) { return true; }
+inline bool _S_is_basic_char_type(wchar_t*) { return true; }
+
+// Store an eos iff _CharT is a basic character type.
+// Do not reference _S_eos if it isn't.
+template <class _CharT>
+inline void _S_cond_store_eos(_CharT&) {}
+
+inline void _S_cond_store_eos(char& __c) { __c = 0; }
+inline void _S_cond_store_eos(wchar_t& __c) { __c = 0; }
+
+// char_producers are logically functions that generate a section of
+// a string. These can be convereted to ropes. The resulting rope
+// invokes the char_producer on demand. This allows, for example,
+// files to be viewed as ropes without reading the entire file.
+template <class _CharT>
+class char_producer {
+ public:
+ virtual ~char_producer() {};
+ virtual void operator()(size_t __start_pos, size_t __len,
+ _CharT* __buffer) = 0;
+ // Buffer should really be an arbitrary output iterator.
+ // That way we could flatten directly into an ostream, etc.
+ // This is thoroughly impossible, since iterator types don't
+ // have runtime descriptions.
+};
+
+// Sequence buffers:
+//
+// Sequence must provide an append operation that appends an
+// array to the sequence. Sequence buffers are useful only if
+// appending an entire array is cheaper than appending element by element.
+// This is true for many string representations.
+// This should perhaps inherit from ostream<sequence::value_type>
+// and be implemented correspondingly, so that they can be used
+// for formatted. For the sake of portability, we don't do this yet.
+//
+// For now, sequence buffers behave as output iterators. But they also
+// behave a little like basic_ostringstream<sequence::value_type> and a
+// little like containers.
+
+template<class _Sequence, size_t _Buf_sz = 100>
+class sequence_buffer : public iterator<std::output_iterator_tag,void,void,void,void>
+{
+ public:
+ typedef typename _Sequence::value_type value_type;
+ protected:
+ _Sequence* _M_prefix;
+ value_type _M_buffer[_Buf_sz];
+ size_t _M_buf_count;
+ public:
+ void flush() {
+ _M_prefix->append(_M_buffer, _M_buffer + _M_buf_count);
+ _M_buf_count = 0;
+ }
+ ~sequence_buffer() { flush(); }
+ sequence_buffer() : _M_prefix(0), _M_buf_count(0) {}
+ sequence_buffer(const sequence_buffer& __x) {
+ _M_prefix = __x._M_prefix;
+ _M_buf_count = __x._M_buf_count;
+ copy(__x._M_buffer, __x._M_buffer + __x._M_buf_count, _M_buffer);
+ }
+ sequence_buffer(sequence_buffer& __x) {
+ __x.flush();
+ _M_prefix = __x._M_prefix;
+ _M_buf_count = 0;
+ }
+ sequence_buffer(_Sequence& __s) : _M_prefix(&__s), _M_buf_count(0) {}
+ sequence_buffer& operator= (sequence_buffer& __x) {
+ __x.flush();
+ _M_prefix = __x._M_prefix;
+ _M_buf_count = 0;
+ return *this;
+ }
+ sequence_buffer& operator= (const sequence_buffer& __x) {
+ _M_prefix = __x._M_prefix;
+ _M_buf_count = __x._M_buf_count;
+ copy(__x._M_buffer, __x._M_buffer + __x._M_buf_count, _M_buffer);
+ return *this;
+ }
+ void push_back(value_type __x)
+ {
+ if (_M_buf_count < _Buf_sz) {
+ _M_buffer[_M_buf_count] = __x;
+ ++_M_buf_count;
+ } else {
+ flush();
+ _M_buffer[0] = __x;
+ _M_buf_count = 1;
+ }
+ }
+ void append(value_type* __s, size_t __len)
+ {
+ if (__len + _M_buf_count <= _Buf_sz) {
+ size_t __i = _M_buf_count;
+ size_t __j = 0;
+ for (; __j < __len; __i++, __j++) {
+ _M_buffer[__i] = __s[__j];
+ }
+ _M_buf_count += __len;
+ } else if (0 == _M_buf_count) {
+ _M_prefix->append(__s, __s + __len);
+ } else {
+ flush();
+ append(__s, __len);
+ }
+ }
+ sequence_buffer& write(value_type* __s, size_t __len)
+ {
+ append(__s, __len);
+ return *this;
+ }
+ sequence_buffer& put(value_type __x)
+ {
+ push_back(__x);
+ return *this;
+ }
+ sequence_buffer& operator=(const value_type& __rhs)
+ {
+ push_back(__rhs);
+ return *this;
+ }
+ sequence_buffer& operator*() { return *this; }
+ sequence_buffer& operator++() { return *this; }
+ sequence_buffer& operator++(int) { return *this; }
+};
+
+// The following should be treated as private, at least for now.
+template<class _CharT>
+class _Rope_char_consumer {
+ public:
+ // If we had member templates, these should not be virtual.
+ // For now we need to use run-time parametrization where
+ // compile-time would do. Hence this should all be private
+ // for now.
+ // The symmetry with char_producer is accidental and temporary.
+ virtual ~_Rope_char_consumer() {};
+ virtual bool operator()(const _CharT* __buffer, size_t __len) = 0;
+};
+
+// First a lot of forward declarations. The standard seems to require
+// much stricter "declaration before use" than many of the implementations
+// that preceded it.
+template<class _CharT, class _Alloc=allocator<_CharT> > class rope;
+template<class _CharT, class _Alloc> struct _Rope_RopeConcatenation;
+template<class _CharT, class _Alloc> struct _Rope_RopeLeaf;
+template<class _CharT, class _Alloc> struct _Rope_RopeFunction;
+template<class _CharT, class _Alloc> struct _Rope_RopeSubstring;
+template<class _CharT, class _Alloc> class _Rope_iterator;
+template<class _CharT, class _Alloc> class _Rope_const_iterator;
+template<class _CharT, class _Alloc> class _Rope_char_ref_proxy;
+template<class _CharT, class _Alloc> class _Rope_char_ptr_proxy;
+
+template<class _CharT, class _Alloc>
+bool operator== (const _Rope_char_ptr_proxy<_CharT,_Alloc>& __x,
+ const _Rope_char_ptr_proxy<_CharT,_Alloc>& __y);
+
+template<class _CharT, class _Alloc>
+_Rope_const_iterator<_CharT,_Alloc> operator-
+ (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ ptrdiff_t __n);
+
+template<class _CharT, class _Alloc>
+_Rope_const_iterator<_CharT,_Alloc> operator+
+ (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ ptrdiff_t __n);
+
+template<class _CharT, class _Alloc>
+_Rope_const_iterator<_CharT,_Alloc> operator+
+ (ptrdiff_t __n,
+ const _Rope_const_iterator<_CharT,_Alloc>& __x);
+
+template<class _CharT, class _Alloc>
+bool operator==
+ (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ const _Rope_const_iterator<_CharT,_Alloc>& __y);
+
+template<class _CharT, class _Alloc>
+bool operator<
+ (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ const _Rope_const_iterator<_CharT,_Alloc>& __y);
+
+template<class _CharT, class _Alloc>
+ptrdiff_t operator-
+ (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ const _Rope_const_iterator<_CharT,_Alloc>& __y);
+
+template<class _CharT, class _Alloc>
+_Rope_iterator<_CharT,_Alloc> operator-
+ (const _Rope_iterator<_CharT,_Alloc>& __x,
+ ptrdiff_t __n);
+
+template<class _CharT, class _Alloc>
+_Rope_iterator<_CharT,_Alloc> operator+
+ (const _Rope_iterator<_CharT,_Alloc>& __x,
+ ptrdiff_t __n);
+
+template<class _CharT, class _Alloc>
+_Rope_iterator<_CharT,_Alloc> operator+
+ (ptrdiff_t __n,
+ const _Rope_iterator<_CharT,_Alloc>& __x);
+
+template<class _CharT, class _Alloc>
+bool operator==
+ (const _Rope_iterator<_CharT,_Alloc>& __x,
+ const _Rope_iterator<_CharT,_Alloc>& __y);
+
+template<class _CharT, class _Alloc>
+bool operator<
+ (const _Rope_iterator<_CharT,_Alloc>& __x,
+ const _Rope_iterator<_CharT,_Alloc>& __y);
+
+template<class _CharT, class _Alloc>
+ptrdiff_t operator-
+ (const _Rope_iterator<_CharT,_Alloc>& __x,
+ const _Rope_iterator<_CharT,_Alloc>& __y);
+
+template<class _CharT, class _Alloc>
+rope<_CharT,_Alloc> operator+ (const rope<_CharT,_Alloc>& __left,
+ const rope<_CharT,_Alloc>& __right);
+
+template<class _CharT, class _Alloc>
+rope<_CharT,_Alloc> operator+ (const rope<_CharT,_Alloc>& __left,
+ const _CharT* __right);
+
+template<class _CharT, class _Alloc>
+rope<_CharT,_Alloc> operator+ (const rope<_CharT,_Alloc>& __left,
+ _CharT __right);
+
+// Some helpers, so we can use power on ropes.
+// See below for why this isn't local to the implementation.
+
+// This uses a nonstandard refcount convention.
+// The result has refcount 0.
+template<class _CharT, class _Alloc>
+struct _Rope_Concat_fn
+ : public std::binary_function<rope<_CharT,_Alloc>, rope<_CharT,_Alloc>,
+ rope<_CharT,_Alloc> > {
+ rope<_CharT,_Alloc> operator() (const rope<_CharT,_Alloc>& __x,
+ const rope<_CharT,_Alloc>& __y) {
+ return __x + __y;
+ }
+};
+
+template <class _CharT, class _Alloc>
+inline
+rope<_CharT,_Alloc>
+identity_element(_Rope_Concat_fn<_CharT, _Alloc>)
+{
+ return rope<_CharT,_Alloc>();
+}
+
+
+//
+// What follows should really be local to rope. Unfortunately,
+// that doesn't work, since it makes it impossible to define generic
+// equality on rope iterators. According to the draft standard, the
+// template parameters for such an equality operator cannot be inferred
+// from the occurrence of a member class as a parameter.
+// (SGI compilers in fact allow this, but the __result wouldn't be
+// portable.)
+// Similarly, some of the static member functions are member functions
+// only to avoid polluting the global namespace, and to circumvent
+// restrictions on type inference for template functions.
+//
+
+//
+// The internal data structure for representing a rope. This is
+// private to the implementation. A rope is really just a pointer
+// to one of these.
+//
+// A few basic functions for manipulating this data structure
+// are members of _RopeRep. Most of the more complex algorithms
+// are implemented as rope members.
+//
+// Some of the static member functions of _RopeRep have identically
+// named functions in rope that simply invoke the _RopeRep versions.
+//
+// A macro to introduce various allocation and deallocation functions
+// These need to be defined differently depending on whether or not
+// we are using standard conforming allocators, and whether the allocator
+// instances have real state. Thus this macro is invoked repeatedly
+// with different definitions of __ROPE_DEFINE_ALLOC.
+// __ROPE_DEFINE_ALLOC(type,name) defines
+// type * name_allocate(size_t) and
+// void name_deallocate(tipe *, size_t)
+// Both functions may or may not be static.
+
+#define __ROPE_DEFINE_ALLOCS(__a) \
+ __ROPE_DEFINE_ALLOC(_CharT,_Data) /* character data */ \
+ typedef _Rope_RopeConcatenation<_CharT,__a> __C; \
+ __ROPE_DEFINE_ALLOC(__C,_C) \
+ typedef _Rope_RopeLeaf<_CharT,__a> __L; \
+ __ROPE_DEFINE_ALLOC(__L,_L) \
+ typedef _Rope_RopeFunction<_CharT,__a> __F; \
+ __ROPE_DEFINE_ALLOC(__F,_F) \
+ typedef _Rope_RopeSubstring<_CharT,__a> __S; \
+ __ROPE_DEFINE_ALLOC(__S,_S)
+
+// Internal rope nodes potentially store a copy of the allocator
+// instance used to allocate them. This is mostly redundant.
+// But the alternative would be to pass allocator instances around
+// in some form to nearly all internal functions, since any pointer
+// assignment may result in a zero reference count and thus require
+// deallocation.
+// The _Rope_rep_base class encapsulates
+// the differences between SGI-style allocators and standard-conforming
+// allocators.
+
+#define __STATIC_IF_SGI_ALLOC /* not static */
+
+// Base class for ordinary allocators.
+template <class _CharT, class _Allocator, bool _IsStatic>
+class _Rope_rep_alloc_base {
+public:
+ typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type
+ allocator_type;
+ allocator_type get_allocator() const { return _M_data_allocator; }
+ _Rope_rep_alloc_base(size_t __size, const allocator_type& __a)
+ : _M_size(__size), _M_data_allocator(__a) {}
+ size_t _M_size; // This is here only to avoid wasting space
+ // for an otherwise empty base class.
+
+
+protected:
+ allocator_type _M_data_allocator;
+
+# define __ROPE_DEFINE_ALLOC(_Tp, __name) \
+ typedef typename \
+ _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \
+ /*static*/ _Tp * __name##_allocate(size_t __n) \
+ { return __name##Allocator(_M_data_allocator).allocate(__n); } \
+ void __name##_deallocate(_Tp* __p, size_t __n) \
+ { __name##Allocator(_M_data_allocator).deallocate(__p, __n); }
+ __ROPE_DEFINE_ALLOCS(_Allocator);
+# undef __ROPE_DEFINE_ALLOC
+};
+
+// Specialization for allocators that have the property that we don't
+// actually have to store an allocator object.
+template <class _CharT, class _Allocator>
+class _Rope_rep_alloc_base<_CharT,_Allocator,true> {
+public:
+ typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type
+ allocator_type;
+ allocator_type get_allocator() const { return allocator_type(); }
+ _Rope_rep_alloc_base(size_t __size, const allocator_type&)
+ : _M_size(__size) {}
+ size_t _M_size;
+
+protected:
+
+# define __ROPE_DEFINE_ALLOC(_Tp, __name) \
+ typedef typename \
+ _Alloc_traits<_Tp,_Allocator>::_Alloc_type __name##Alloc; \
+ typedef typename \
+ _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \
+ static _Tp* __name##_allocate(size_t __n) \
+ { return __name##Alloc::allocate(__n); } \
+ void __name##_deallocate(_Tp *__p, size_t __n) \
+ { __name##Alloc::deallocate(__p, __n); }
+ __ROPE_DEFINE_ALLOCS(_Allocator);
+# undef __ROPE_DEFINE_ALLOC
+};
+
+template <class _CharT, class _Alloc>
+struct _Rope_rep_base
+ : public _Rope_rep_alloc_base<_CharT,_Alloc,
+ _Alloc_traits<_CharT,_Alloc>::_S_instanceless>
+{
+ typedef _Rope_rep_alloc_base<_CharT,_Alloc,
+ _Alloc_traits<_CharT,_Alloc>::_S_instanceless>
+ _Base;
+ typedef typename _Base::allocator_type allocator_type;
+ _Rope_rep_base(size_t __size, const allocator_type& __a)
+ : _Base(__size, __a) {}
+};
+
+
+template<class _CharT, class _Alloc>
+struct _Rope_RopeRep : public _Rope_rep_base<_CharT,_Alloc>
+# ifndef __GC
+ , _Refcount_Base
+# endif
+{
+ public:
+ enum { _S_max_rope_depth = 45 };
+ enum _Tag {_S_leaf, _S_concat, _S_substringfn, _S_function};
+ _Tag _M_tag:8;
+ bool _M_is_balanced:8;
+ unsigned char _M_depth;
+ __GC_CONST _CharT* _M_c_string;
+ __gthread_mutex_t _M_c_string_lock;
+ /* Flattened version of string, if needed. */
+ /* typically 0. */
+ /* If it's not 0, then the memory is owned */
+ /* by this node. */
+ /* In the case of a leaf, this may point to */
+ /* the same memory as the data field. */
+ typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
+ allocator_type;
+ _Rope_RopeRep(_Tag __t, int __d, bool __b, size_t __size,
+ allocator_type __a)
+ : _Rope_rep_base<_CharT,_Alloc>(__size, __a),
+# ifndef __GC
+ _Refcount_Base(1),
+# endif
+ _M_tag(__t), _M_is_balanced(__b), _M_depth(__d), _M_c_string(0)
+#ifdef __GTHREAD_MUTEX_INIT
+ {
+ // Do not copy a POSIX/gthr mutex once in use. However, bits are bits.
+ __gthread_mutex_t __tmp = __GTHREAD_MUTEX_INIT;
+ _M_c_string_lock = __tmp;
+ }
+#else
+ { __GTHREAD_MUTEX_INIT_FUNCTION (&_M_c_string_lock); }
+#endif
+# ifdef __GC
+ void _M_incr () {}
+# endif
+ static void _S_free_string(__GC_CONST _CharT*, size_t __len,
+ allocator_type __a);
+# define __STL_FREE_STRING(__s, __l, __a) _S_free_string(__s, __l, __a);
+ // Deallocate data section of a leaf.
+ // This shouldn't be a member function.
+ // But its hard to do anything else at the
+ // moment, because it's templatized w.r.t.
+ // an allocator.
+ // Does nothing if __GC is defined.
+# ifndef __GC
+ void _M_free_c_string();
+ void _M_free_tree();
+ // Deallocate t. Assumes t is not 0.
+ void _M_unref_nonnil()
+ {
+ if (0 == _M_decr()) _M_free_tree();
+ }
+ void _M_ref_nonnil()
+ {
+ _M_incr();
+ }
+ static void _S_unref(_Rope_RopeRep* __t)
+ {
+ if (0 != __t) {
+ __t->_M_unref_nonnil();
+ }
+ }
+ static void _S_ref(_Rope_RopeRep* __t)
+ {
+ if (0 != __t) __t->_M_incr();
+ }
+ static void _S_free_if_unref(_Rope_RopeRep* __t)
+ {
+ if (0 != __t && 0 == __t->_M_ref_count) __t->_M_free_tree();
+ }
+# else /* __GC */
+ void _M_unref_nonnil() {}
+ void _M_ref_nonnil() {}
+ static void _S_unref(_Rope_RopeRep*) {}
+ static void _S_ref(_Rope_RopeRep*) {}
+ static void _S_free_if_unref(_Rope_RopeRep*) {}
+# endif
+
+};
+
+template<class _CharT, class _Alloc>
+struct _Rope_RopeLeaf : public _Rope_RopeRep<_CharT,_Alloc> {
+ public:
+ // Apparently needed by VC++
+ // The data fields of leaves are allocated with some
+ // extra space, to accommodate future growth and for basic
+ // character types, to hold a trailing eos character.
+ enum { _S_alloc_granularity = 8 };
+ static size_t _S_rounded_up_size(size_t __n) {
+ size_t __size_with_eos;
+
+ if (_S_is_basic_char_type((_CharT*)0)) {
+ __size_with_eos = __n + 1;
+ } else {
+ __size_with_eos = __n;
+ }
+# ifdef __GC
+ return __size_with_eos;
+# else
+ // Allow slop for in-place expansion.
+ return (__size_with_eos + _S_alloc_granularity-1)
+ &~ (_S_alloc_granularity-1);
+# endif
+ }
+ __GC_CONST _CharT* _M_data; /* Not necessarily 0 terminated. */
+ /* The allocated size is */
+ /* _S_rounded_up_size(size), except */
+ /* in the GC case, in which it */
+ /* doesn't matter. */
+ typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
+ allocator_type;
+ _Rope_RopeLeaf(__GC_CONST _CharT* __d, size_t __size, allocator_type __a)
+ : _Rope_RopeRep<_CharT,_Alloc>(_Rope_RopeRep<_CharT,_Alloc>::_S_leaf,
+ 0, true, __size, __a),
+ _M_data(__d)
+ {
+ if (_S_is_basic_char_type((_CharT *)0)) {
+ // already eos terminated.
+ this->_M_c_string = __d;
+ }
+ }
+ // The constructor assumes that d has been allocated with
+ // the proper allocator and the properly padded size.
+ // In contrast, the destructor deallocates the data:
+# ifndef __GC
+ ~_Rope_RopeLeaf() {
+ if (_M_data != this->_M_c_string) {
+ _M_free_c_string();
+ }
+ __STL_FREE_STRING(_M_data, this->_M_size, get_allocator());
+ }
+# endif
+};
+
+template<class _CharT, class _Alloc>
+struct _Rope_RopeConcatenation : public _Rope_RopeRep<_CharT,_Alloc> {
+ public:
+ _Rope_RopeRep<_CharT,_Alloc>* _M_left;
+ _Rope_RopeRep<_CharT,_Alloc>* _M_right;
+ typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
+ allocator_type;
+ _Rope_RopeConcatenation(_Rope_RopeRep<_CharT,_Alloc>* __l,
+ _Rope_RopeRep<_CharT,_Alloc>* __r,
+ allocator_type __a)
+
+ : _Rope_RopeRep<_CharT,_Alloc>(_Rope_RopeRep<_CharT,_Alloc>::_S_concat,
+ std::max(__l->_M_depth, __r->_M_depth) + 1,
+ false,
+ __l->_M_size + __r->_M_size, __a),
+ _M_left(__l), _M_right(__r)
+ {}
+# ifndef __GC
+ ~_Rope_RopeConcatenation() {
+ _M_free_c_string();
+ _M_left->_M_unref_nonnil();
+ _M_right->_M_unref_nonnil();
+ }
+# endif
+};
+
+template<class _CharT, class _Alloc>
+struct _Rope_RopeFunction : public _Rope_RopeRep<_CharT,_Alloc> {
+ public:
+ char_producer<_CharT>* _M_fn;
+# ifndef __GC
+ bool _M_delete_when_done; // Char_producer is owned by the
+ // rope and should be explicitly
+ // deleted when the rope becomes
+ // inaccessible.
+# else
+ // In the GC case, we either register the rope for
+ // finalization, or not. Thus the field is unnecessary;
+ // the information is stored in the collector data structures.
+ // We do need a finalization procedure to be invoked by the
+ // collector.
+ static void _S_fn_finalization_proc(void * __tree, void *) {
+ delete ((_Rope_RopeFunction *)__tree) -> _M_fn;
+ }
+# endif
+ typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
+ allocator_type;
+ _Rope_RopeFunction(char_producer<_CharT>* __f, size_t __size,
+ bool __d, allocator_type __a)
+ : _Rope_RopeRep<_CharT,_Alloc>(_Rope_RopeRep<_CharT,_Alloc>::_S_function,
+ 0, true, __size, __a)
+ , _M_fn(__f)
+# ifndef __GC
+ , _M_delete_when_done(__d)
+# endif
+ {
+# ifdef __GC
+ if (__d) {
+ GC_REGISTER_FINALIZER(
+ this, _Rope_RopeFunction::_S_fn_finalization_proc, 0, 0, 0);
+ }
+# endif
+ }
+# ifndef __GC
+ ~_Rope_RopeFunction() {
+ _M_free_c_string();
+ if (_M_delete_when_done) {
+ delete _M_fn;
+ }
+ }
+# endif
+};
+// Substring results are usually represented using just
+// concatenation nodes. But in the case of very long flat ropes
+// or ropes with a functional representation that isn't practical.
+// In that case, we represent the __result as a special case of
+// RopeFunction, whose char_producer points back to the rope itself.
+// In all cases except repeated substring operations and
+// deallocation, we treat the __result as a RopeFunction.
+template<class _CharT, class _Alloc>
+struct _Rope_RopeSubstring : public _Rope_RopeFunction<_CharT,_Alloc>,
+ public char_producer<_CharT> {
+ public:
+ // XXX this whole class should be rewritten.
+ _Rope_RopeRep<_CharT,_Alloc>* _M_base; // not 0
+ size_t _M_start;
+ virtual void operator()(size_t __start_pos, size_t __req_len,
+ _CharT* __buffer) {
+ switch(_M_base->_M_tag) {
+ case _Rope_RopeFunction<_CharT,_Alloc>::_S_function:
+ case _Rope_RopeFunction<_CharT,_Alloc>::_S_substringfn:
+ {
+ char_producer<_CharT>* __fn =
+ ((_Rope_RopeFunction<_CharT,_Alloc>*)_M_base)->_M_fn;
+ (*__fn)(__start_pos + _M_start, __req_len, __buffer);
+ }
+ break;
+ case _Rope_RopeFunction<_CharT,_Alloc>::_S_leaf:
+ {
+ __GC_CONST _CharT* __s =
+ ((_Rope_RopeLeaf<_CharT,_Alloc>*)_M_base)->_M_data;
+ uninitialized_copy_n(__s + __start_pos + _M_start, __req_len,
+ __buffer);
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
+ allocator_type;
+ _Rope_RopeSubstring(_Rope_RopeRep<_CharT,_Alloc>* __b, size_t __s,
+ size_t __l, allocator_type __a)
+ : _Rope_RopeFunction<_CharT,_Alloc>(this, __l, false, __a),
+ char_producer<_CharT>(),
+ _M_base(__b),
+ _M_start(__s)
+ {
+# ifndef __GC
+ _M_base->_M_ref_nonnil();
+# endif
+ this->_M_tag = _Rope_RopeFunction<_CharT,_Alloc>::_S_substringfn;
+ }
+ virtual ~_Rope_RopeSubstring()
+ {
+# ifndef __GC
+ _M_base->_M_unref_nonnil();
+ // _M_free_c_string(); -- done by parent class
+# endif
+ }
+};
+
+
+// Self-destructing pointers to Rope_rep.
+// These are not conventional smart pointers. Their
+// only purpose in life is to ensure that unref is called
+// on the pointer either at normal exit or if an exception
+// is raised. It is the caller's responsibility to
+// adjust reference counts when these pointers are initialized
+// or assigned to. (This convention significantly reduces
+// the number of potentially expensive reference count
+// updates.)
+#ifndef __GC
+ template<class _CharT, class _Alloc>
+ struct _Rope_self_destruct_ptr {
+ _Rope_RopeRep<_CharT,_Alloc>* _M_ptr;
+ ~_Rope_self_destruct_ptr()
+ { _Rope_RopeRep<_CharT,_Alloc>::_S_unref(_M_ptr); }
+#ifdef __EXCEPTIONS
+ _Rope_self_destruct_ptr() : _M_ptr(0) {};
+#else
+ _Rope_self_destruct_ptr() {};
+#endif
+ _Rope_self_destruct_ptr(_Rope_RopeRep<_CharT,_Alloc>* __p) : _M_ptr(__p) {}
+ _Rope_RopeRep<_CharT,_Alloc>& operator*() { return *_M_ptr; }
+ _Rope_RopeRep<_CharT,_Alloc>* operator->() { return _M_ptr; }
+ operator _Rope_RopeRep<_CharT,_Alloc>*() { return _M_ptr; }
+ _Rope_self_destruct_ptr& operator= (_Rope_RopeRep<_CharT,_Alloc>* __x)
+ { _M_ptr = __x; return *this; }
+ };
+#endif
+
+// Dereferencing a nonconst iterator has to return something
+// that behaves almost like a reference. It's not possible to
+// return an actual reference since assignment requires extra
+// work. And we would get into the same problems as with the
+// CD2 version of basic_string.
+template<class _CharT, class _Alloc>
+class _Rope_char_ref_proxy {
+ friend class rope<_CharT,_Alloc>;
+ friend class _Rope_iterator<_CharT,_Alloc>;
+ friend class _Rope_char_ptr_proxy<_CharT,_Alloc>;
+# ifdef __GC
+ typedef _Rope_RopeRep<_CharT,_Alloc>* _Self_destruct_ptr;
+# else
+ typedef _Rope_self_destruct_ptr<_CharT,_Alloc> _Self_destruct_ptr;
+# endif
+ typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep;
+ typedef rope<_CharT,_Alloc> _My_rope;
+ size_t _M_pos;
+ _CharT _M_current;
+ bool _M_current_valid;
+ _My_rope* _M_root; // The whole rope.
+ public:
+ _Rope_char_ref_proxy(_My_rope* __r, size_t __p)
+ : _M_pos(__p), _M_current_valid(false), _M_root(__r) {}
+ _Rope_char_ref_proxy(const _Rope_char_ref_proxy& __x)
+ : _M_pos(__x._M_pos), _M_current_valid(false), _M_root(__x._M_root) {}
+ // Don't preserve cache if the reference can outlive the
+ // expression. We claim that's not possible without calling
+ // a copy constructor or generating reference to a proxy
+ // reference. We declare the latter to have undefined semantics.
+ _Rope_char_ref_proxy(_My_rope* __r, size_t __p, _CharT __c)
+ : _M_pos(__p), _M_current(__c), _M_current_valid(true), _M_root(__r) {}
+ inline operator _CharT () const;
+ _Rope_char_ref_proxy& operator= (_CharT __c);
+ _Rope_char_ptr_proxy<_CharT,_Alloc> operator& () const;
+ _Rope_char_ref_proxy& operator= (const _Rope_char_ref_proxy& __c) {
+ return operator=((_CharT)__c);
+ }
+};
+
+template<class _CharT, class __Alloc>
+inline void swap(_Rope_char_ref_proxy <_CharT, __Alloc > __a,
+ _Rope_char_ref_proxy <_CharT, __Alloc > __b) {
+ _CharT __tmp = __a;
+ __a = __b;
+ __b = __tmp;
+}
+
+template<class _CharT, class _Alloc>
+class _Rope_char_ptr_proxy {
+ // XXX this class should be rewritten.
+ friend class _Rope_char_ref_proxy<_CharT,_Alloc>;
+ size_t _M_pos;
+ rope<_CharT,_Alloc>* _M_root; // The whole rope.
+ public:
+ _Rope_char_ptr_proxy(const _Rope_char_ref_proxy<_CharT,_Alloc>& __x)
+ : _M_pos(__x._M_pos), _M_root(__x._M_root) {}
+ _Rope_char_ptr_proxy(const _Rope_char_ptr_proxy& __x)
+ : _M_pos(__x._M_pos), _M_root(__x._M_root) {}
+ _Rope_char_ptr_proxy() {}
+ _Rope_char_ptr_proxy(_CharT* __x) : _M_root(0), _M_pos(0) {
+ }
+ _Rope_char_ptr_proxy&
+ operator= (const _Rope_char_ptr_proxy& __x) {
+ _M_pos = __x._M_pos;
+ _M_root = __x._M_root;
+ return *this;
+ }
+ template<class _CharT2, class _Alloc2>
+ friend bool operator== (const _Rope_char_ptr_proxy<_CharT2,_Alloc2>& __x,
+ const _Rope_char_ptr_proxy<_CharT2,_Alloc2>& __y);
+ _Rope_char_ref_proxy<_CharT,_Alloc> operator*() const {
+ return _Rope_char_ref_proxy<_CharT,_Alloc>(_M_root, _M_pos);
+ }
+};
+
+
+// Rope iterators:
+// Unlike in the C version, we cache only part of the stack
+// for rope iterators, since they must be efficiently copyable.
+// When we run out of cache, we have to reconstruct the iterator
+// value.
+// Pointers from iterators are not included in reference counts.
+// Iterators are assumed to be thread private. Ropes can
+// be shared.
+
+template<class _CharT, class _Alloc>
+class _Rope_iterator_base
+ : public iterator<std::random_access_iterator_tag, _CharT>
+{
+ friend class rope<_CharT,_Alloc>;
+ public:
+ typedef _Alloc _allocator_type; // used in _Rope_rotate, VC++ workaround
+ typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep;
+ // Borland doesn't want this to be protected.
+ protected:
+ enum { _S_path_cache_len = 4 }; // Must be <= 9.
+ enum { _S_iterator_buf_len = 15 };
+ size_t _M_current_pos;
+ _RopeRep* _M_root; // The whole rope.
+ size_t _M_leaf_pos; // Starting position for current leaf
+ __GC_CONST _CharT* _M_buf_start;
+ // Buffer possibly
+ // containing current char.
+ __GC_CONST _CharT* _M_buf_ptr;
+ // Pointer to current char in buffer.
+ // != 0 ==> buffer valid.
+ __GC_CONST _CharT* _M_buf_end;
+ // One past __last valid char in buffer.
+ // What follows is the path cache. We go out of our
+ // way to make this compact.
+ // Path_end contains the bottom section of the path from
+ // the root to the current leaf.
+ const _RopeRep* _M_path_end[_S_path_cache_len];
+ int _M_leaf_index; // Last valid __pos in path_end;
+ // _M_path_end[0] ... _M_path_end[leaf_index-1]
+ // point to concatenation nodes.
+ unsigned char _M_path_directions;
+ // (path_directions >> __i) & 1 is 1
+ // iff we got from _M_path_end[leaf_index - __i - 1]
+ // to _M_path_end[leaf_index - __i] by going to the
+ // __right. Assumes path_cache_len <= 9.
+ _CharT _M_tmp_buf[_S_iterator_buf_len];
+ // Short buffer for surrounding chars.
+ // This is useful primarily for
+ // RopeFunctions. We put the buffer
+ // here to avoid locking in the
+ // multithreaded case.
+ // The cached path is generally assumed to be valid
+ // only if the buffer is valid.
+ static void _S_setbuf(_Rope_iterator_base& __x);
+ // Set buffer contents given
+ // path cache.
+ static void _S_setcache(_Rope_iterator_base& __x);
+ // Set buffer contents and
+ // path cache.
+ static void _S_setcache_for_incr(_Rope_iterator_base& __x);
+ // As above, but assumes path
+ // cache is valid for previous posn.
+ _Rope_iterator_base() {}
+ _Rope_iterator_base(_RopeRep* __root, size_t __pos)
+ : _M_current_pos(__pos), _M_root(__root), _M_buf_ptr(0) {}
+ void _M_incr(size_t __n);
+ void _M_decr(size_t __n);
+ public:
+ size_t index() const { return _M_current_pos; }
+ _Rope_iterator_base(const _Rope_iterator_base& __x) {
+ if (0 != __x._M_buf_ptr) {
+ *this = __x;
+ } else {
+ _M_current_pos = __x._M_current_pos;
+ _M_root = __x._M_root;
+ _M_buf_ptr = 0;
+ }
+ }
+};
+
+template<class _CharT, class _Alloc> class _Rope_iterator;
+
+template<class _CharT, class _Alloc>
+class _Rope_const_iterator : public _Rope_iterator_base<_CharT,_Alloc> {
+ friend class rope<_CharT,_Alloc>;
+ protected:
+ typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep;
+ // The one from the base class may not be directly visible.
+ _Rope_const_iterator(const _RopeRep* __root, size_t __pos):
+ _Rope_iterator_base<_CharT,_Alloc>(
+ const_cast<_RopeRep*>(__root), __pos)
+ // Only nonconst iterators modify root ref count
+ {}
+ public:
+ typedef _CharT reference; // Really a value. Returning a reference
+ // Would be a mess, since it would have
+ // to be included in refcount.
+ typedef const _CharT* pointer;
+
+ public:
+ _Rope_const_iterator() {};
+ _Rope_const_iterator(const _Rope_const_iterator& __x) :
+ _Rope_iterator_base<_CharT,_Alloc>(__x) { }
+ _Rope_const_iterator(const _Rope_iterator<_CharT,_Alloc>& __x);
+ _Rope_const_iterator(const rope<_CharT,_Alloc>& __r, size_t __pos) :
+ _Rope_iterator_base<_CharT,_Alloc>(__r._M_tree_ptr, __pos) {}
+ _Rope_const_iterator& operator= (const _Rope_const_iterator& __x) {
+ if (0 != __x._M_buf_ptr) {
+ *(static_cast<_Rope_iterator_base<_CharT,_Alloc>*>(this)) = __x;
+ } else {
+ this->_M_current_pos = __x._M_current_pos;
+ this->_M_root = __x._M_root;
+ this->_M_buf_ptr = 0;
+ }
+ return(*this);
+ }
+ reference operator*() {
+ if (0 == this->_M_buf_ptr) _S_setcache(*this);
+ return *this->_M_buf_ptr;
+ }
+ _Rope_const_iterator& operator++() {
+ __GC_CONST _CharT* __next;
+ if (0 != this->_M_buf_ptr
+ && (__next = this->_M_buf_ptr + 1) < this->_M_buf_end) {
+ this->_M_buf_ptr = __next;
+ ++this->_M_current_pos;
+ } else {
+ _M_incr(1);
+ }
+ return *this;
+ }
+ _Rope_const_iterator& operator+=(ptrdiff_t __n) {
+ if (__n >= 0) {
+ _M_incr(__n);
+ } else {
+ _M_decr(-__n);
+ }
+ return *this;
+ }
+ _Rope_const_iterator& operator--() {
+ _M_decr(1);
+ return *this;
+ }
+ _Rope_const_iterator& operator-=(ptrdiff_t __n) {
+ if (__n >= 0) {
+ _M_decr(__n);
+ } else {
+ _M_incr(-__n);
+ }
+ return *this;
+ }
+ _Rope_const_iterator operator++(int) {
+ size_t __old_pos = this->_M_current_pos;
+ _M_incr(1);
+ return _Rope_const_iterator<_CharT,_Alloc>(this->_M_root, __old_pos);
+ // This makes a subsequent dereference expensive.
+ // Perhaps we should instead copy the iterator
+ // if it has a valid cache?
+ }
+ _Rope_const_iterator operator--(int) {
+ size_t __old_pos = this->_M_current_pos;
+ _M_decr(1);
+ return _Rope_const_iterator<_CharT,_Alloc>(this->_M_root, __old_pos);
+ }
+ template<class _CharT2, class _Alloc2>
+ friend _Rope_const_iterator<_CharT2,_Alloc2> operator-
+ (const _Rope_const_iterator<_CharT2,_Alloc2>& __x,
+ ptrdiff_t __n);
+ template<class _CharT2, class _Alloc2>
+ friend _Rope_const_iterator<_CharT2,_Alloc2> operator+
+ (const _Rope_const_iterator<_CharT2,_Alloc2>& __x,
+ ptrdiff_t __n);
+ template<class _CharT2, class _Alloc2>
+ friend _Rope_const_iterator<_CharT2,_Alloc2> operator+
+ (ptrdiff_t __n,
+ const _Rope_const_iterator<_CharT2,_Alloc2>& __x);
+ reference operator[](size_t __n) {
+ return rope<_CharT,_Alloc>::_S_fetch(this->_M_root,
+ this->_M_current_pos + __n);
+ }
+
+ template<class _CharT2, class _Alloc2>
+ friend bool operator==
+ (const _Rope_const_iterator<_CharT2,_Alloc2>& __x,
+ const _Rope_const_iterator<_CharT2,_Alloc2>& __y);
+ template<class _CharT2, class _Alloc2>
+ friend bool operator<
+ (const _Rope_const_iterator<_CharT2,_Alloc2>& __x,
+ const _Rope_const_iterator<_CharT2,_Alloc2>& __y);
+ template<class _CharT2, class _Alloc2>
+ friend ptrdiff_t operator-
+ (const _Rope_const_iterator<_CharT2,_Alloc2>& __x,
+ const _Rope_const_iterator<_CharT2,_Alloc2>& __y);
+};
+
+template<class _CharT, class _Alloc>
+class _Rope_iterator : public _Rope_iterator_base<_CharT,_Alloc> {
+ friend class rope<_CharT,_Alloc>;
+ protected:
+ typedef typename _Rope_iterator_base<_CharT,_Alloc>::_RopeRep _RopeRep;
+ rope<_CharT,_Alloc>* _M_root_rope;
+ // root is treated as a cached version of this,
+ // and is used to detect changes to the underlying
+ // rope.
+ // Root is included in the reference count.
+ // This is necessary so that we can detect changes reliably.
+ // Unfortunately, it requires careful bookkeeping for the
+ // nonGC case.
+ _Rope_iterator(rope<_CharT,_Alloc>* __r, size_t __pos)
+ : _Rope_iterator_base<_CharT,_Alloc>(__r->_M_tree_ptr, __pos),
+ _M_root_rope(__r)
+ { _RopeRep::_S_ref(this->_M_root);
+ if (!(__r -> empty()))_S_setcache(*this); }
+
+ void _M_check();
+ public:
+ typedef _Rope_char_ref_proxy<_CharT,_Alloc> reference;
+ typedef _Rope_char_ref_proxy<_CharT,_Alloc>* pointer;
+
+ public:
+ rope<_CharT,_Alloc>& container() { return *_M_root_rope; }
+ _Rope_iterator() {
+ this->_M_root = 0; // Needed for reference counting.
+ };
+ _Rope_iterator(const _Rope_iterator& __x) :
+ _Rope_iterator_base<_CharT,_Alloc>(__x) {
+ _M_root_rope = __x._M_root_rope;
+ _RopeRep::_S_ref(this->_M_root);
+ }
+ _Rope_iterator(rope<_CharT,_Alloc>& __r, size_t __pos);
+ ~_Rope_iterator() {
+ _RopeRep::_S_unref(this->_M_root);
+ }
+ _Rope_iterator& operator= (const _Rope_iterator& __x) {
+ _RopeRep* __old = this->_M_root;
+
+ _RopeRep::_S_ref(__x._M_root);
+ if (0 != __x._M_buf_ptr) {
+ _M_root_rope = __x._M_root_rope;
+ *(static_cast<_Rope_iterator_base<_CharT,_Alloc>*>(this)) = __x;
+ } else {
+ this->_M_current_pos = __x._M_current_pos;
+ this->_M_root = __x._M_root;
+ _M_root_rope = __x._M_root_rope;
+ this->_M_buf_ptr = 0;
+ }
+ _RopeRep::_S_unref(__old);
+ return(*this);
+ }
+ reference operator*() {
+ _M_check();
+ if (0 == this->_M_buf_ptr) {
+ return _Rope_char_ref_proxy<_CharT,_Alloc>(
+ _M_root_rope, this->_M_current_pos);
+ } else {
+ return _Rope_char_ref_proxy<_CharT,_Alloc>(
+ _M_root_rope, this->_M_current_pos, *this->_M_buf_ptr);
+ }
+ }
+ _Rope_iterator& operator++() {
+ _M_incr(1);
+ return *this;
+ }
+ _Rope_iterator& operator+=(ptrdiff_t __n) {
+ if (__n >= 0) {
+ _M_incr(__n);
+ } else {
+ _M_decr(-__n);
+ }
+ return *this;
+ }
+ _Rope_iterator& operator--() {
+ _M_decr(1);
+ return *this;
+ }
+ _Rope_iterator& operator-=(ptrdiff_t __n) {
+ if (__n >= 0) {
+ _M_decr(__n);
+ } else {
+ _M_incr(-__n);
+ }
+ return *this;
+ }
+ _Rope_iterator operator++(int) {
+ size_t __old_pos = this->_M_current_pos;
+ _M_incr(1);
+ return _Rope_iterator<_CharT,_Alloc>(_M_root_rope, __old_pos);
+ }
+ _Rope_iterator operator--(int) {
+ size_t __old_pos = this->_M_current_pos;
+ _M_decr(1);
+ return _Rope_iterator<_CharT,_Alloc>(_M_root_rope, __old_pos);
+ }
+ reference operator[](ptrdiff_t __n) {
+ return _Rope_char_ref_proxy<_CharT,_Alloc>(
+ _M_root_rope, this->_M_current_pos + __n);
+ }
+
+ template<class _CharT2, class _Alloc2>
+ friend bool operator==
+ (const _Rope_iterator<_CharT2,_Alloc2>& __x,
+ const _Rope_iterator<_CharT2,_Alloc2>& __y);
+ template<class _CharT2, class _Alloc2>
+ friend bool operator<
+ (const _Rope_iterator<_CharT2,_Alloc2>& __x,
+ const _Rope_iterator<_CharT2,_Alloc2>& __y);
+ template<class _CharT2, class _Alloc2>
+ friend ptrdiff_t operator-
+ (const _Rope_iterator<_CharT2,_Alloc2>& __x,
+ const _Rope_iterator<_CharT2,_Alloc2>& __y);
+ template<class _CharT2, class _Alloc2>
+ friend _Rope_iterator<_CharT2,_Alloc2> operator-
+ (const _Rope_iterator<_CharT2,_Alloc2>& __x,
+ ptrdiff_t __n);
+ template<class _CharT2, class _Alloc2>
+ friend _Rope_iterator<_CharT2,_Alloc2> operator+
+ (const _Rope_iterator<_CharT2,_Alloc2>& __x,
+ ptrdiff_t __n);
+ template<class _CharT2, class _Alloc2>
+ friend _Rope_iterator<_CharT2,_Alloc2> operator+
+ (ptrdiff_t __n,
+ const _Rope_iterator<_CharT2,_Alloc2>& __x);
+};
+
+// The rope base class encapsulates
+// the differences between SGI-style allocators and standard-conforming
+// allocators.
+
+// Base class for ordinary allocators.
+template <class _CharT, class _Allocator, bool _IsStatic>
+class _Rope_alloc_base {
+public:
+ typedef _Rope_RopeRep<_CharT,_Allocator> _RopeRep;
+ typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type
+ allocator_type;
+ allocator_type get_allocator() const { return _M_data_allocator; }
+ _Rope_alloc_base(_RopeRep *__t, const allocator_type& __a)
+ : _M_tree_ptr(__t), _M_data_allocator(__a) {}
+ _Rope_alloc_base(const allocator_type& __a)
+ : _M_data_allocator(__a) {}
+
+protected:
+ // The only data members of a rope:
+ allocator_type _M_data_allocator;
+ _RopeRep* _M_tree_ptr;
+
+# define __ROPE_DEFINE_ALLOC(_Tp, __name) \
+ typedef typename \
+ _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \
+ _Tp* __name##_allocate(size_t __n) const \
+ { return __name##Allocator(_M_data_allocator).allocate(__n); } \
+ void __name##_deallocate(_Tp *__p, size_t __n) const \
+ { __name##Allocator(_M_data_allocator).deallocate(__p, __n); }
+ __ROPE_DEFINE_ALLOCS(_Allocator)
+# undef __ROPE_DEFINE_ALLOC
+};
+
+// Specialization for allocators that have the property that we don't
+// actually have to store an allocator object.
+template <class _CharT, class _Allocator>
+class _Rope_alloc_base<_CharT,_Allocator,true> {
+public:
+ typedef _Rope_RopeRep<_CharT,_Allocator> _RopeRep;
+ typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type
+ allocator_type;
+ allocator_type get_allocator() const { return allocator_type(); }
+ _Rope_alloc_base(_RopeRep *__t, const allocator_type&)
+ : _M_tree_ptr(__t) {}
+ _Rope_alloc_base(const allocator_type&) {}
+
+protected:
+ // The only data member of a rope:
+ _RopeRep *_M_tree_ptr;
+
+# define __ROPE_DEFINE_ALLOC(_Tp, __name) \
+ typedef typename \
+ _Alloc_traits<_Tp,_Allocator>::_Alloc_type __name##Alloc; \
+ typedef typename \
+ _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \
+ static _Tp* __name##_allocate(size_t __n) \
+ { return __name##Alloc::allocate(__n); } \
+ static void __name##_deallocate(_Tp *__p, size_t __n) \
+ { __name##Alloc::deallocate(__p, __n); }
+ __ROPE_DEFINE_ALLOCS(_Allocator)
+# undef __ROPE_DEFINE_ALLOC
+};
+
+template <class _CharT, class _Alloc>
+struct _Rope_base
+ : public _Rope_alloc_base<_CharT,_Alloc,
+ _Alloc_traits<_CharT,_Alloc>::_S_instanceless>
+{
+ typedef _Rope_alloc_base<_CharT,_Alloc,
+ _Alloc_traits<_CharT,_Alloc>::_S_instanceless>
+ _Base;
+ typedef typename _Base::allocator_type allocator_type;
+ typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep;
+ // The one in _Base may not be visible due to template rules.
+ _Rope_base(_RopeRep* __t, const allocator_type& __a) : _Base(__t, __a) {}
+ _Rope_base(const allocator_type& __a) : _Base(__a) {}
+};
+
+
+/**
+ * This is an SGI extension.
+ * @ingroup SGIextensions
+ * @doctodo
+*/
+template <class _CharT, class _Alloc>
+class rope : public _Rope_base<_CharT,_Alloc> {
+ public:
+ typedef _CharT value_type;
+ typedef ptrdiff_t difference_type;
+ typedef size_t size_type;
+ typedef _CharT const_reference;
+ typedef const _CharT* const_pointer;
+ typedef _Rope_iterator<_CharT,_Alloc> iterator;
+ typedef _Rope_const_iterator<_CharT,_Alloc> const_iterator;
+ typedef _Rope_char_ref_proxy<_CharT,_Alloc> reference;
+ typedef _Rope_char_ptr_proxy<_CharT,_Alloc> pointer;
+
+ friend class _Rope_iterator<_CharT,_Alloc>;
+ friend class _Rope_const_iterator<_CharT,_Alloc>;
+ friend struct _Rope_RopeRep<_CharT,_Alloc>;
+ friend class _Rope_iterator_base<_CharT,_Alloc>;
+ friend class _Rope_char_ptr_proxy<_CharT,_Alloc>;
+ friend class _Rope_char_ref_proxy<_CharT,_Alloc>;
+ friend struct _Rope_RopeSubstring<_CharT,_Alloc>;
+
+ protected:
+ typedef _Rope_base<_CharT,_Alloc> _Base;
+ typedef typename _Base::allocator_type allocator_type;
+ using _Base::_M_tree_ptr;
+ typedef __GC_CONST _CharT* _Cstrptr;
+
+ static _CharT _S_empty_c_str[1];
+
+ static bool _S_is0(_CharT __c) { return __c == _S_eos((_CharT*)0); }
+ enum { _S_copy_max = 23 };
+ // For strings shorter than _S_copy_max, we copy to
+ // concatenate.
+
+ typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep;
+ typedef _Rope_RopeConcatenation<_CharT,_Alloc> _RopeConcatenation;
+ typedef _Rope_RopeLeaf<_CharT,_Alloc> _RopeLeaf;
+ typedef _Rope_RopeFunction<_CharT,_Alloc> _RopeFunction;
+ typedef _Rope_RopeSubstring<_CharT,_Alloc> _RopeSubstring;
+
+ // Retrieve a character at the indicated position.
+ static _CharT _S_fetch(_RopeRep* __r, size_type __pos);
+
+# ifndef __GC
+ // Obtain a pointer to the character at the indicated position.
+ // The pointer can be used to change the character.
+ // If such a pointer cannot be produced, as is frequently the
+ // case, 0 is returned instead.
+ // (Returns nonzero only if all nodes in the path have a refcount
+ // of 1.)
+ static _CharT* _S_fetch_ptr(_RopeRep* __r, size_type __pos);
+# endif
+
+ static bool _S_apply_to_pieces(
+ // should be template parameter
+ _Rope_char_consumer<_CharT>& __c,
+ const _RopeRep* __r,
+ size_t __begin, size_t __end);
+ // begin and end are assumed to be in range.
+
+# ifndef __GC
+ static void _S_unref(_RopeRep* __t)
+ {
+ _RopeRep::_S_unref(__t);
+ }
+ static void _S_ref(_RopeRep* __t)
+ {
+ _RopeRep::_S_ref(__t);
+ }
+# else /* __GC */
+ static void _S_unref(_RopeRep*) {}
+ static void _S_ref(_RopeRep*) {}
+# endif
+
+
+# ifdef __GC
+ typedef _Rope_RopeRep<_CharT,_Alloc>* _Self_destruct_ptr;
+# else
+ typedef _Rope_self_destruct_ptr<_CharT,_Alloc> _Self_destruct_ptr;
+# endif
+
+ // _Result is counted in refcount.
+ static _RopeRep* _S_substring(_RopeRep* __base,
+ size_t __start, size_t __endp1);
+
+ static _RopeRep* _S_concat_char_iter(_RopeRep* __r,
+ const _CharT* __iter, size_t __slen);
+ // Concatenate rope and char ptr, copying __s.
+ // Should really take an arbitrary iterator.
+ // Result is counted in refcount.
+ static _RopeRep* _S_destr_concat_char_iter(_RopeRep* __r,
+ const _CharT* __iter, size_t __slen)
+ // As above, but one reference to __r is about to be
+ // destroyed. Thus the pieces may be recycled if all
+ // relevant reference counts are 1.
+# ifdef __GC
+ // We can't really do anything since refcounts are unavailable.
+ { return _S_concat_char_iter(__r, __iter, __slen); }
+# else
+ ;
+# endif
+
+ static _RopeRep* _S_concat(_RopeRep* __left, _RopeRep* __right);
+ // General concatenation on _RopeRep. _Result
+ // has refcount of 1. Adjusts argument refcounts.
+
+ public:
+ void apply_to_pieces( size_t __begin, size_t __end,
+ _Rope_char_consumer<_CharT>& __c) const {
+ _S_apply_to_pieces(__c, this->_M_tree_ptr, __begin, __end);
+ }
+
+
+ protected:
+
+ static size_t _S_rounded_up_size(size_t __n) {
+ return _RopeLeaf::_S_rounded_up_size(__n);
+ }
+
+ static size_t _S_allocated_capacity(size_t __n) {
+ if (_S_is_basic_char_type((_CharT*)0)) {
+ return _S_rounded_up_size(__n) - 1;
+ } else {
+ return _S_rounded_up_size(__n);
+ }
+ }
+
+ // Allocate and construct a RopeLeaf using the supplied allocator
+ // Takes ownership of s instead of copying.
+ static _RopeLeaf* _S_new_RopeLeaf(__GC_CONST _CharT *__s,
+ size_t __size, allocator_type __a)
+ {
+ _RopeLeaf* __space = typename _Base::_LAllocator(__a).allocate(1);
+ return new(__space) _RopeLeaf(__s, __size, __a);
+ }
+
+ static _RopeConcatenation* _S_new_RopeConcatenation(
+ _RopeRep* __left, _RopeRep* __right,
+ allocator_type __a)
+ {
+ _RopeConcatenation* __space = typename _Base::_CAllocator(__a).allocate(1);
+ return new(__space) _RopeConcatenation(__left, __right, __a);
+ }
+
+ static _RopeFunction* _S_new_RopeFunction(char_producer<_CharT>* __f,
+ size_t __size, bool __d, allocator_type __a)
+ {
+ _RopeFunction* __space = typename _Base::_FAllocator(__a).allocate(1);
+ return new(__space) _RopeFunction(__f, __size, __d, __a);
+ }
+
+ static _RopeSubstring* _S_new_RopeSubstring(
+ _Rope_RopeRep<_CharT,_Alloc>* __b, size_t __s,
+ size_t __l, allocator_type __a)
+ {
+ _RopeSubstring* __space = typename _Base::_SAllocator(__a).allocate(1);
+ return new(__space) _RopeSubstring(__b, __s, __l, __a);
+ }
+
+ static
+ _RopeLeaf* _S_RopeLeaf_from_unowned_char_ptr(const _CharT *__s,
+ size_t __size, allocator_type __a)
+# define __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __size, __a) \
+ _S_RopeLeaf_from_unowned_char_ptr(__s, __size, __a)
+ {
+ if (0 == __size) return 0;
+ _CharT* __buf = __a.allocate(_S_rounded_up_size(__size));
+
+ uninitialized_copy_n(__s, __size, __buf);
+ _S_cond_store_eos(__buf[__size]);
+ try {
+ return _S_new_RopeLeaf(__buf, __size, __a);
+ }
+ catch(...)
+ {
+ _RopeRep::__STL_FREE_STRING(__buf, __size, __a);
+ __throw_exception_again;
+ }
+ }
+
+
+ // Concatenation of nonempty strings.
+ // Always builds a concatenation node.
+ // Rebalances if the result is too deep.
+ // Result has refcount 1.
+ // Does not increment left and right ref counts even though
+ // they are referenced.
+ static _RopeRep*
+ _S_tree_concat(_RopeRep* __left, _RopeRep* __right);
+
+ // Concatenation helper functions
+ static _RopeLeaf*
+ _S_leaf_concat_char_iter(_RopeLeaf* __r,
+ const _CharT* __iter, size_t __slen);
+ // Concatenate by copying leaf.
+ // should take an arbitrary iterator
+ // result has refcount 1.
+# ifndef __GC
+ static _RopeLeaf* _S_destr_leaf_concat_char_iter
+ (_RopeLeaf* __r, const _CharT* __iter, size_t __slen);
+ // A version that potentially clobbers __r if __r->_M_ref_count == 1.
+# endif
+
+ private:
+
+ static size_t _S_char_ptr_len(const _CharT* __s);
+ // slightly generalized strlen
+
+ rope(_RopeRep* __t, const allocator_type& __a = allocator_type())
+ : _Base(__t,__a) { }
+
+
+ // Copy __r to the _CharT buffer.
+ // Returns __buffer + __r->_M_size.
+ // Assumes that buffer is uninitialized.
+ static _CharT* _S_flatten(_RopeRep* __r, _CharT* __buffer);
+
+ // Again, with explicit starting position and length.
+ // Assumes that buffer is uninitialized.
+ static _CharT* _S_flatten(_RopeRep* __r,
+ size_t __start, size_t __len,
+ _CharT* __buffer);
+
+ static const unsigned long
+ _S_min_len[_RopeRep::_S_max_rope_depth + 1];
+
+ static bool _S_is_balanced(_RopeRep* __r)
+ { return (__r->_M_size >= _S_min_len[__r->_M_depth]); }
+
+ static bool _S_is_almost_balanced(_RopeRep* __r)
+ { return (__r->_M_depth == 0 ||
+ __r->_M_size >= _S_min_len[__r->_M_depth - 1]); }
+
+ static bool _S_is_roughly_balanced(_RopeRep* __r)
+ { return (__r->_M_depth <= 1 ||
+ __r->_M_size >= _S_min_len[__r->_M_depth - 2]); }
+
+ // Assumes the result is not empty.
+ static _RopeRep* _S_concat_and_set_balanced(_RopeRep* __left,
+ _RopeRep* __right)
+ {
+ _RopeRep* __result = _S_concat(__left, __right);
+ if (_S_is_balanced(__result)) __result->_M_is_balanced = true;
+ return __result;
+ }
+
+ // The basic rebalancing operation. Logically copies the
+ // rope. The result has refcount of 1. The client will
+ // usually decrement the reference count of __r.
+ // The result is within height 2 of balanced by the above
+ // definition.
+ static _RopeRep* _S_balance(_RopeRep* __r);
+
+ // Add all unbalanced subtrees to the forest of balanceed trees.
+ // Used only by balance.
+ static void _S_add_to_forest(_RopeRep*__r, _RopeRep** __forest);
+
+ // Add __r to forest, assuming __r is already balanced.
+ static void _S_add_leaf_to_forest(_RopeRep* __r, _RopeRep** __forest);
+
+ // Print to stdout, exposing structure
+ static void _S_dump(_RopeRep* __r, int __indent = 0);
+
+ // Return -1, 0, or 1 if __x < __y, __x == __y, or __x > __y resp.
+ static int _S_compare(const _RopeRep* __x, const _RopeRep* __y);
+
+ public:
+ bool empty() const { return 0 == this->_M_tree_ptr; }
+
+ // Comparison member function. This is public only for those
+ // clients that need a ternary comparison. Others
+ // should use the comparison operators below.
+ int compare(const rope& __y) const {
+ return _S_compare(this->_M_tree_ptr, __y._M_tree_ptr);
+ }
+
+ rope(const _CharT* __s, const allocator_type& __a = allocator_type())
+ : _Base(__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, _S_char_ptr_len(__s),
+ __a),__a)
+ { }
+
+ rope(const _CharT* __s, size_t __len,
+ const allocator_type& __a = allocator_type())
+ : _Base(__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __len, __a), __a)
+ { }
+
+ // Should perhaps be templatized with respect to the iterator type
+ // and use Sequence_buffer. (It should perhaps use sequence_buffer
+ // even now.)
+ rope(const _CharT *__s, const _CharT *__e,
+ const allocator_type& __a = allocator_type())
+ : _Base(__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __e - __s, __a), __a)
+ { }
+
+ rope(const const_iterator& __s, const const_iterator& __e,
+ const allocator_type& __a = allocator_type())
+ : _Base(_S_substring(__s._M_root, __s._M_current_pos,
+ __e._M_current_pos), __a)
+ { }
+
+ rope(const iterator& __s, const iterator& __e,
+ const allocator_type& __a = allocator_type())
+ : _Base(_S_substring(__s._M_root, __s._M_current_pos,
+ __e._M_current_pos), __a)
+ { }
+
+ rope(_CharT __c, const allocator_type& __a = allocator_type())
+ : _Base(__a)
+ {
+ _CharT* __buf = _Data_allocate(_S_rounded_up_size(1));
+
+ std::_Construct(__buf, __c);
+ try {
+ this->_M_tree_ptr = _S_new_RopeLeaf(__buf, 1, __a);
+ }
+ catch(...)
+ {
+ _RopeRep::__STL_FREE_STRING(__buf, 1, __a);
+ __throw_exception_again;
+ }
+ }
+
+ rope(size_t __n, _CharT __c,
+ const allocator_type& __a = allocator_type());
+
+ rope(const allocator_type& __a = allocator_type())
+ : _Base(0, __a) {}
+
+ // Construct a rope from a function that can compute its members
+ rope(char_producer<_CharT> *__fn, size_t __len, bool __delete_fn,
+ const allocator_type& __a = allocator_type())
+ : _Base(__a)
+ {
+ this->_M_tree_ptr = (0 == __len) ?
+ 0 : _S_new_RopeFunction(__fn, __len, __delete_fn, __a);
+ }
+
+ rope(const rope& __x, const allocator_type& __a = allocator_type())
+ : _Base(__x._M_tree_ptr, __a)
+ {
+ _S_ref(this->_M_tree_ptr);
+ }
+
+ ~rope()
+ {
+ _S_unref(this->_M_tree_ptr);
+ }
+
+ rope& operator=(const rope& __x)
+ {
+ _RopeRep* __old = this->_M_tree_ptr;
+ this->_M_tree_ptr = __x._M_tree_ptr;
+ _S_ref(this->_M_tree_ptr);
+ _S_unref(__old);
+ return(*this);
+ }
+
+ void clear()
+ {
+ _S_unref(this->_M_tree_ptr);
+ this->_M_tree_ptr = 0;
+ }
+
+ void push_back(_CharT __x)
+ {
+ _RopeRep* __old = this->_M_tree_ptr;
+ this->_M_tree_ptr
+ = _S_destr_concat_char_iter(this->_M_tree_ptr, &__x, 1);
+ _S_unref(__old);
+ }
+
+ void pop_back()
+ {
+ _RopeRep* __old = this->_M_tree_ptr;
+ this->_M_tree_ptr =
+ _S_substring(this->_M_tree_ptr,
+ 0,
+ this->_M_tree_ptr->_M_size - 1);
+ _S_unref(__old);
+ }
+
+ _CharT back() const
+ {
+ return _S_fetch(this->_M_tree_ptr, this->_M_tree_ptr->_M_size - 1);
+ }
+
+ void push_front(_CharT __x)
+ {
+ _RopeRep* __old = this->_M_tree_ptr;
+ _RopeRep* __left =
+ __STL_ROPE_FROM_UNOWNED_CHAR_PTR(&__x, 1, get_allocator());
+ try {
+ this->_M_tree_ptr = _S_concat(__left, this->_M_tree_ptr);
+ _S_unref(__old);
+ _S_unref(__left);
+ }
+ catch(...)
+ {
+ _S_unref(__left);
+ __throw_exception_again;
+ }
+ }
+
+ void pop_front()
+ {
+ _RopeRep* __old = this->_M_tree_ptr;
+ this->_M_tree_ptr
+ = _S_substring(this->_M_tree_ptr, 1, this->_M_tree_ptr->_M_size);
+ _S_unref(__old);
+ }
+
+ _CharT front() const
+ {
+ return _S_fetch(this->_M_tree_ptr, 0);
+ }
+
+ void balance()
+ {
+ _RopeRep* __old = this->_M_tree_ptr;
+ this->_M_tree_ptr = _S_balance(this->_M_tree_ptr);
+ _S_unref(__old);
+ }
+
+ void copy(_CharT* __buffer) const {
+ _Destroy(__buffer, __buffer + size());
+ _S_flatten(this->_M_tree_ptr, __buffer);
+ }
+
+ // This is the copy function from the standard, but
+ // with the arguments reordered to make it consistent with the
+ // rest of the interface.
+ // Note that this guaranteed not to compile if the draft standard
+ // order is assumed.
+ size_type copy(size_type __pos, size_type __n, _CharT* __buffer) const
+ {
+ size_t __size = size();
+ size_t __len = (__pos + __n > __size? __size - __pos : __n);
+
+ _Destroy(__buffer, __buffer + __len);
+ _S_flatten(this->_M_tree_ptr, __pos, __len, __buffer);
+ return __len;
+ }
+
+ // Print to stdout, exposing structure. May be useful for
+ // performance debugging.
+ void dump() {
+ _S_dump(this->_M_tree_ptr);
+ }
+
+ // Convert to 0 terminated string in new allocated memory.
+ // Embedded 0s in the input do not terminate the copy.
+ const _CharT* c_str() const;
+
+ // As above, but lso use the flattened representation as the
+ // the new rope representation.
+ const _CharT* replace_with_c_str();
+
+ // Reclaim memory for the c_str generated flattened string.
+ // Intentionally undocumented, since it's hard to say when this
+ // is safe for multiple threads.
+ void delete_c_str () {
+ if (0 == this->_M_tree_ptr) return;
+ if (_RopeRep::_S_leaf == this->_M_tree_ptr->_M_tag &&
+ ((_RopeLeaf*)this->_M_tree_ptr)->_M_data ==
+ this->_M_tree_ptr->_M_c_string) {
+ // Representation shared
+ return;
+ }
+# ifndef __GC
+ this->_M_tree_ptr->_M_free_c_string();
+# endif
+ this->_M_tree_ptr->_M_c_string = 0;
+ }
+
+ _CharT operator[] (size_type __pos) const {
+ return _S_fetch(this->_M_tree_ptr, __pos);
+ }
+
+ _CharT at(size_type __pos) const {
+ // if (__pos >= size()) throw out_of_range; // XXX
+ return (*this)[__pos];
+ }
+
+ const_iterator begin() const {
+ return(const_iterator(this->_M_tree_ptr, 0));
+ }
+
+ // An easy way to get a const iterator from a non-const container.
+ const_iterator const_begin() const {
+ return(const_iterator(this->_M_tree_ptr, 0));
+ }
+
+ const_iterator end() const {
+ return(const_iterator(this->_M_tree_ptr, size()));
+ }
+
+ const_iterator const_end() const {
+ return(const_iterator(this->_M_tree_ptr, size()));
+ }
+
+ size_type size() const {
+ return(0 == this->_M_tree_ptr? 0 : this->_M_tree_ptr->_M_size);
+ }
+
+ size_type length() const {
+ return size();
+ }
+
+ size_type max_size() const {
+ return _S_min_len[_RopeRep::_S_max_rope_depth-1] - 1;
+ // Guarantees that the result can be sufficirntly
+ // balanced. Longer ropes will probably still work,
+ // but it's harder to make guarantees.
+ }
+
+ typedef reverse_iterator<const_iterator> const_reverse_iterator;
+
+ const_reverse_iterator rbegin() const {
+ return const_reverse_iterator(end());
+ }
+
+ const_reverse_iterator const_rbegin() const {
+ return const_reverse_iterator(end());
+ }
+
+ const_reverse_iterator rend() const {
+ return const_reverse_iterator(begin());
+ }
+
+ const_reverse_iterator const_rend() const {
+ return const_reverse_iterator(begin());
+ }
+
+ template<class _CharT2, class _Alloc2>
+ friend rope<_CharT2,_Alloc2>
+ operator+ (const rope<_CharT2,_Alloc2>& __left,
+ const rope<_CharT2,_Alloc2>& __right);
+
+ template<class _CharT2, class _Alloc2>
+ friend rope<_CharT2,_Alloc2>
+ operator+ (const rope<_CharT2,_Alloc2>& __left,
+ const _CharT2* __right);
+
+ template<class _CharT2, class _Alloc2>
+ friend rope<_CharT2,_Alloc2>
+ operator+ (const rope<_CharT2,_Alloc2>& __left, _CharT2 __right);
+ // The symmetric cases are intentionally omitted, since they're presumed
+ // to be less common, and we don't handle them as well.
+
+ // The following should really be templatized.
+ // The first argument should be an input iterator or
+ // forward iterator with value_type _CharT.
+ rope& append(const _CharT* __iter, size_t __n) {
+ _RopeRep* __result =
+ _S_destr_concat_char_iter(this->_M_tree_ptr, __iter, __n);
+ _S_unref(this->_M_tree_ptr);
+ this->_M_tree_ptr = __result;
+ return *this;
+ }
+
+ rope& append(const _CharT* __c_string) {
+ size_t __len = _S_char_ptr_len(__c_string);
+ append(__c_string, __len);
+ return(*this);
+ }
+
+ rope& append(const _CharT* __s, const _CharT* __e) {
+ _RopeRep* __result =
+ _S_destr_concat_char_iter(this->_M_tree_ptr, __s, __e - __s);
+ _S_unref(this->_M_tree_ptr);
+ this->_M_tree_ptr = __result;
+ return *this;
+ }
+
+ rope& append(const_iterator __s, const_iterator __e) {
+ _Self_destruct_ptr __appendee(_S_substring(
+ __s._M_root, __s._M_current_pos, __e._M_current_pos));
+ _RopeRep* __result =
+ _S_concat(this->_M_tree_ptr, (_RopeRep*)__appendee);
+ _S_unref(this->_M_tree_ptr);
+ this->_M_tree_ptr = __result;
+ return *this;
+ }
+
+ rope& append(_CharT __c) {
+ _RopeRep* __result =
+ _S_destr_concat_char_iter(this->_M_tree_ptr, &__c, 1);
+ _S_unref(this->_M_tree_ptr);
+ this->_M_tree_ptr = __result;
+ return *this;
+ }
+
+ rope& append() { return append(_CharT()); } // XXX why?
+
+ rope& append(const rope& __y) {
+ _RopeRep* __result = _S_concat(this->_M_tree_ptr, __y._M_tree_ptr);
+ _S_unref(this->_M_tree_ptr);
+ this->_M_tree_ptr = __result;
+ return *this;
+ }
+
+ rope& append(size_t __n, _CharT __c) {
+ rope<_CharT,_Alloc> __last(__n, __c);
+ return append(__last);
+ }
+
+ void swap(rope& __b) {
+ _RopeRep* __tmp = this->_M_tree_ptr;
+ this->_M_tree_ptr = __b._M_tree_ptr;
+ __b._M_tree_ptr = __tmp;
+ }
+
+
+ protected:
+ // Result is included in refcount.
+ static _RopeRep* replace(_RopeRep* __old, size_t __pos1,
+ size_t __pos2, _RopeRep* __r) {
+ if (0 == __old) { _S_ref(__r); return __r; }
+ _Self_destruct_ptr __left(
+ _S_substring(__old, 0, __pos1));
+ _Self_destruct_ptr __right(
+ _S_substring(__old, __pos2, __old->_M_size));
+ _RopeRep* __result;
+
+ if (0 == __r) {
+ __result = _S_concat(__left, __right);
+ } else {
+ _Self_destruct_ptr __left_result(_S_concat(__left, __r));
+ __result = _S_concat(__left_result, __right);
+ }
+ return __result;
+ }
+
+ public:
+ void insert(size_t __p, const rope& __r) {
+ _RopeRep* __result =
+ replace(this->_M_tree_ptr, __p, __p, __r._M_tree_ptr);
+ _S_unref(this->_M_tree_ptr);
+ this->_M_tree_ptr = __result;
+ }
+
+ void insert(size_t __p, size_t __n, _CharT __c) {
+ rope<_CharT,_Alloc> __r(__n,__c);
+ insert(__p, __r);
+ }
+
+ void insert(size_t __p, const _CharT* __i, size_t __n) {
+ _Self_destruct_ptr __left(_S_substring(this->_M_tree_ptr, 0, __p));
+ _Self_destruct_ptr __right(_S_substring(this->_M_tree_ptr,
+ __p, size()));
+ _Self_destruct_ptr __left_result(
+ _S_concat_char_iter(__left, __i, __n));
+ // _S_ destr_concat_char_iter should be safe here.
+ // But as it stands it's probably not a win, since __left
+ // is likely to have additional references.
+ _RopeRep* __result = _S_concat(__left_result, __right);
+ _S_unref(this->_M_tree_ptr);
+ this->_M_tree_ptr = __result;
+ }
+
+ void insert(size_t __p, const _CharT* __c_string) {
+ insert(__p, __c_string, _S_char_ptr_len(__c_string));
+ }
+
+ void insert(size_t __p, _CharT __c) {
+ insert(__p, &__c, 1);
+ }
+
+ void insert(size_t __p) {
+ _CharT __c = _CharT();
+ insert(__p, &__c, 1);
+ }
+
+ void insert(size_t __p, const _CharT* __i, const _CharT* __j) {
+ rope __r(__i, __j);
+ insert(__p, __r);
+ }
+
+ void insert(size_t __p, const const_iterator& __i,
+ const const_iterator& __j) {
+ rope __r(__i, __j);
+ insert(__p, __r);
+ }
+
+ void insert(size_t __p, const iterator& __i,
+ const iterator& __j) {
+ rope __r(__i, __j);
+ insert(__p, __r);
+ }
+
+ // (position, length) versions of replace operations:
+
+ void replace(size_t __p, size_t __n, const rope& __r) {
+ _RopeRep* __result =
+ replace(this->_M_tree_ptr, __p, __p + __n, __r._M_tree_ptr);
+ _S_unref(this->_M_tree_ptr);
+ this->_M_tree_ptr = __result;
+ }
+
+ void replace(size_t __p, size_t __n,
+ const _CharT* __i, size_t __i_len) {
+ rope __r(__i, __i_len);
+ replace(__p, __n, __r);
+ }
+
+ void replace(size_t __p, size_t __n, _CharT __c) {
+ rope __r(__c);
+ replace(__p, __n, __r);
+ }
+
+ void replace(size_t __p, size_t __n, const _CharT* __c_string) {
+ rope __r(__c_string);
+ replace(__p, __n, __r);
+ }
+
+ void replace(size_t __p, size_t __n,
+ const _CharT* __i, const _CharT* __j) {
+ rope __r(__i, __j);
+ replace(__p, __n, __r);
+ }
+
+ void replace(size_t __p, size_t __n,
+ const const_iterator& __i, const const_iterator& __j) {
+ rope __r(__i, __j);
+ replace(__p, __n, __r);
+ }
+
+ void replace(size_t __p, size_t __n,
+ const iterator& __i, const iterator& __j) {
+ rope __r(__i, __j);
+ replace(__p, __n, __r);
+ }
+
+ // Single character variants:
+ void replace(size_t __p, _CharT __c) {
+ iterator __i(this, __p);
+ *__i = __c;
+ }
+
+ void replace(size_t __p, const rope& __r) {
+ replace(__p, 1, __r);
+ }
+
+ void replace(size_t __p, const _CharT* __i, size_t __i_len) {
+ replace(__p, 1, __i, __i_len);
+ }
+
+ void replace(size_t __p, const _CharT* __c_string) {
+ replace(__p, 1, __c_string);
+ }
+
+ void replace(size_t __p, const _CharT* __i, const _CharT* __j) {
+ replace(__p, 1, __i, __j);
+ }
+
+ void replace(size_t __p, const const_iterator& __i,
+ const const_iterator& __j) {
+ replace(__p, 1, __i, __j);
+ }
+
+ void replace(size_t __p, const iterator& __i,
+ const iterator& __j) {
+ replace(__p, 1, __i, __j);
+ }
+
+ // Erase, (position, size) variant.
+ void erase(size_t __p, size_t __n) {
+ _RopeRep* __result = replace(this->_M_tree_ptr, __p, __p + __n, 0);
+ _S_unref(this->_M_tree_ptr);
+ this->_M_tree_ptr = __result;
+ }
+
+ // Erase, single character
+ void erase(size_t __p) {
+ erase(__p, __p + 1);
+ }
+
+ // Insert, iterator variants.
+ iterator insert(const iterator& __p, const rope& __r)
+ { insert(__p.index(), __r); return __p; }
+ iterator insert(const iterator& __p, size_t __n, _CharT __c)
+ { insert(__p.index(), __n, __c); return __p; }
+ iterator insert(const iterator& __p, _CharT __c)
+ { insert(__p.index(), __c); return __p; }
+ iterator insert(const iterator& __p )
+ { insert(__p.index()); return __p; }
+ iterator insert(const iterator& __p, const _CharT* c_string)
+ { insert(__p.index(), c_string); return __p; }
+ iterator insert(const iterator& __p, const _CharT* __i, size_t __n)
+ { insert(__p.index(), __i, __n); return __p; }
+ iterator insert(const iterator& __p, const _CharT* __i,
+ const _CharT* __j)
+ { insert(__p.index(), __i, __j); return __p; }
+ iterator insert(const iterator& __p,
+ const const_iterator& __i, const const_iterator& __j)
+ { insert(__p.index(), __i, __j); return __p; }
+ iterator insert(const iterator& __p,
+ const iterator& __i, const iterator& __j)
+ { insert(__p.index(), __i, __j); return __p; }
+
+ // Replace, range variants.
+ void replace(const iterator& __p, const iterator& __q,
+ const rope& __r)
+ { replace(__p.index(), __q.index() - __p.index(), __r); }
+ void replace(const iterator& __p, const iterator& __q, _CharT __c)
+ { replace(__p.index(), __q.index() - __p.index(), __c); }
+ void replace(const iterator& __p, const iterator& __q,
+ const _CharT* __c_string)
+ { replace(__p.index(), __q.index() - __p.index(), __c_string); }
+ void replace(const iterator& __p, const iterator& __q,
+ const _CharT* __i, size_t __n)
+ { replace(__p.index(), __q.index() - __p.index(), __i, __n); }
+ void replace(const iterator& __p, const iterator& __q,
+ const _CharT* __i, const _CharT* __j)
+ { replace(__p.index(), __q.index() - __p.index(), __i, __j); }
+ void replace(const iterator& __p, const iterator& __q,
+ const const_iterator& __i, const const_iterator& __j)
+ { replace(__p.index(), __q.index() - __p.index(), __i, __j); }
+ void replace(const iterator& __p, const iterator& __q,
+ const iterator& __i, const iterator& __j)
+ { replace(__p.index(), __q.index() - __p.index(), __i, __j); }
+
+ // Replace, iterator variants.
+ void replace(const iterator& __p, const rope& __r)
+ { replace(__p.index(), __r); }
+ void replace(const iterator& __p, _CharT __c)
+ { replace(__p.index(), __c); }
+ void replace(const iterator& __p, const _CharT* __c_string)
+ { replace(__p.index(), __c_string); }
+ void replace(const iterator& __p, const _CharT* __i, size_t __n)
+ { replace(__p.index(), __i, __n); }
+ void replace(const iterator& __p, const _CharT* __i, const _CharT* __j)
+ { replace(__p.index(), __i, __j); }
+ void replace(const iterator& __p, const_iterator __i,
+ const_iterator __j)
+ { replace(__p.index(), __i, __j); }
+ void replace(const iterator& __p, iterator __i, iterator __j)
+ { replace(__p.index(), __i, __j); }
+
+ // Iterator and range variants of erase
+ iterator erase(const iterator& __p, const iterator& __q) {
+ size_t __p_index = __p.index();
+ erase(__p_index, __q.index() - __p_index);
+ return iterator(this, __p_index);
+ }
+ iterator erase(const iterator& __p) {
+ size_t __p_index = __p.index();
+ erase(__p_index, 1);
+ return iterator(this, __p_index);
+ }
+
+ rope substr(size_t __start, size_t __len = 1) const {
+ return rope<_CharT,_Alloc>(
+ _S_substring(this->_M_tree_ptr,
+ __start,
+ __start + __len));
+ }
+
+ rope substr(iterator __start, iterator __end) const {
+ return rope<_CharT,_Alloc>(
+ _S_substring(this->_M_tree_ptr,
+ __start.index(),
+ __end.index()));
+ }
+
+ rope substr(iterator __start) const {
+ size_t __pos = __start.index();
+ return rope<_CharT,_Alloc>(
+ _S_substring(this->_M_tree_ptr, __pos, __pos + 1));
+ }
+
+ rope substr(const_iterator __start, const_iterator __end) const {
+ // This might eventually take advantage of the cache in the
+ // iterator.
+ return rope<_CharT,_Alloc>(
+ _S_substring(this->_M_tree_ptr, __start.index(), __end.index()));
+ }
+
+ rope<_CharT,_Alloc> substr(const_iterator __start) {
+ size_t __pos = __start.index();
+ return rope<_CharT,_Alloc>(
+ _S_substring(this->_M_tree_ptr, __pos, __pos + 1));
+ }
+
+ static const size_type npos;
+
+ size_type find(_CharT __c, size_type __pos = 0) const;
+ size_type find(const _CharT* __s, size_type __pos = 0) const {
+ size_type __result_pos;
+ const_iterator __result =
+ std::search(const_begin() + __pos, const_end(),
+ __s, __s + _S_char_ptr_len(__s));
+ __result_pos = __result.index();
+# ifndef __STL_OLD_ROPE_SEMANTICS
+ if (__result_pos == size()) __result_pos = npos;
+# endif
+ return __result_pos;
+ }
+
+ iterator mutable_begin() {
+ return(iterator(this, 0));
+ }
+
+ iterator mutable_end() {
+ return(iterator(this, size()));
+ }
+
+ typedef reverse_iterator<iterator> reverse_iterator;
+
+ reverse_iterator mutable_rbegin() {
+ return reverse_iterator(mutable_end());
+ }
+
+ reverse_iterator mutable_rend() {
+ return reverse_iterator(mutable_begin());
+ }
+
+ reference mutable_reference_at(size_type __pos) {
+ return reference(this, __pos);
+ }
+
+# ifdef __STD_STUFF
+ reference operator[] (size_type __pos) {
+ return _char_ref_proxy(this, __pos);
+ }
+
+ reference at(size_type __pos) {
+ // if (__pos >= size()) throw out_of_range; // XXX
+ return (*this)[__pos];
+ }
+
+ void resize(size_type __n, _CharT __c) {}
+ void resize(size_type __n) {}
+ void reserve(size_type __res_arg = 0) {}
+ size_type capacity() const {
+ return max_size();
+ }
+
+ // Stuff below this line is dangerous because it's error prone.
+ // I would really like to get rid of it.
+ // copy function with funny arg ordering.
+ size_type copy(_CharT* __buffer, size_type __n,
+ size_type __pos = 0) const {
+ return copy(__pos, __n, __buffer);
+ }
+
+ iterator end() { return mutable_end(); }
+
+ iterator begin() { return mutable_begin(); }
+
+ reverse_iterator rend() { return mutable_rend(); }
+
+ reverse_iterator rbegin() { return mutable_rbegin(); }
+
+# else
+
+ const_iterator end() { return const_end(); }
+
+ const_iterator begin() { return const_begin(); }
+
+ const_reverse_iterator rend() { return const_rend(); }
+
+ const_reverse_iterator rbegin() { return const_rbegin(); }
+
+# endif
+
+};
+
+template <class _CharT, class _Alloc>
+const typename rope<_CharT, _Alloc>::size_type rope<_CharT, _Alloc>::npos =
+ (size_type)(-1);
+
+template <class _CharT, class _Alloc>
+inline bool operator== (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ const _Rope_const_iterator<_CharT,_Alloc>& __y) {
+ return (__x._M_current_pos == __y._M_current_pos &&
+ __x._M_root == __y._M_root);
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator< (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ const _Rope_const_iterator<_CharT,_Alloc>& __y) {
+ return (__x._M_current_pos < __y._M_current_pos);
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator!= (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ const _Rope_const_iterator<_CharT,_Alloc>& __y) {
+ return !(__x == __y);
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator> (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ const _Rope_const_iterator<_CharT,_Alloc>& __y) {
+ return __y < __x;
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator<= (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ const _Rope_const_iterator<_CharT,_Alloc>& __y) {
+ return !(__y < __x);
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator>= (const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ const _Rope_const_iterator<_CharT,_Alloc>& __y) {
+ return !(__x < __y);
+}
+
+template <class _CharT, class _Alloc>
+inline ptrdiff_t operator-(const _Rope_const_iterator<_CharT,_Alloc>& __x,
+ const _Rope_const_iterator<_CharT,_Alloc>& __y) {
+ return (ptrdiff_t)__x._M_current_pos - (ptrdiff_t)__y._M_current_pos;
+}
+
+template <class _CharT, class _Alloc>
+inline _Rope_const_iterator<_CharT,_Alloc>
+operator-(const _Rope_const_iterator<_CharT,_Alloc>& __x, ptrdiff_t __n) {
+ return _Rope_const_iterator<_CharT,_Alloc>(
+ __x._M_root, __x._M_current_pos - __n);
+}
+
+template <class _CharT, class _Alloc>
+inline _Rope_const_iterator<_CharT,_Alloc>
+operator+(const _Rope_const_iterator<_CharT,_Alloc>& __x, ptrdiff_t __n) {
+ return _Rope_const_iterator<_CharT,_Alloc>(
+ __x._M_root, __x._M_current_pos + __n);
+}
+
+template <class _CharT, class _Alloc>
+inline _Rope_const_iterator<_CharT,_Alloc>
+operator+(ptrdiff_t __n, const _Rope_const_iterator<_CharT,_Alloc>& __x) {
+ return _Rope_const_iterator<_CharT,_Alloc>(
+ __x._M_root, __x._M_current_pos + __n);
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator== (const _Rope_iterator<_CharT,_Alloc>& __x,
+ const _Rope_iterator<_CharT,_Alloc>& __y) {
+ return (__x._M_current_pos == __y._M_current_pos &&
+ __x._M_root_rope == __y._M_root_rope);
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator< (const _Rope_iterator<_CharT,_Alloc>& __x,
+ const _Rope_iterator<_CharT,_Alloc>& __y) {
+ return (__x._M_current_pos < __y._M_current_pos);
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator!= (const _Rope_iterator<_CharT,_Alloc>& __x,
+ const _Rope_iterator<_CharT,_Alloc>& __y) {
+ return !(__x == __y);
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator> (const _Rope_iterator<_CharT,_Alloc>& __x,
+ const _Rope_iterator<_CharT,_Alloc>& __y) {
+ return __y < __x;
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator<= (const _Rope_iterator<_CharT,_Alloc>& __x,
+ const _Rope_iterator<_CharT,_Alloc>& __y) {
+ return !(__y < __x);
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator>= (const _Rope_iterator<_CharT,_Alloc>& __x,
+ const _Rope_iterator<_CharT,_Alloc>& __y) {
+ return !(__x < __y);
+}
+
+template <class _CharT, class _Alloc>
+inline ptrdiff_t operator-(const _Rope_iterator<_CharT,_Alloc>& __x,
+ const _Rope_iterator<_CharT,_Alloc>& __y) {
+ return (ptrdiff_t)__x._M_current_pos - (ptrdiff_t)__y._M_current_pos;
+}
+
+template <class _CharT, class _Alloc>
+inline _Rope_iterator<_CharT,_Alloc>
+operator-(const _Rope_iterator<_CharT,_Alloc>& __x,
+ ptrdiff_t __n) {
+ return _Rope_iterator<_CharT,_Alloc>(
+ __x._M_root_rope, __x._M_current_pos - __n);
+}
+
+template <class _CharT, class _Alloc>
+inline _Rope_iterator<_CharT,_Alloc>
+operator+(const _Rope_iterator<_CharT,_Alloc>& __x,
+ ptrdiff_t __n) {
+ return _Rope_iterator<_CharT,_Alloc>(
+ __x._M_root_rope, __x._M_current_pos + __n);
+}
+
+template <class _CharT, class _Alloc>
+inline _Rope_iterator<_CharT,_Alloc>
+operator+(ptrdiff_t __n, const _Rope_iterator<_CharT,_Alloc>& __x) {
+ return _Rope_iterator<_CharT,_Alloc>(
+ __x._M_root_rope, __x._M_current_pos + __n);
+}
+
+template <class _CharT, class _Alloc>
+inline
+rope<_CharT,_Alloc>
+operator+ (const rope<_CharT,_Alloc>& __left,
+ const rope<_CharT,_Alloc>& __right)
+{
+ return rope<_CharT,_Alloc>(
+ rope<_CharT,_Alloc>::_S_concat(__left._M_tree_ptr, __right._M_tree_ptr));
+ // Inlining this should make it possible to keep __left and
+ // __right in registers.
+}
+
+template <class _CharT, class _Alloc>
+inline
+rope<_CharT,_Alloc>&
+operator+= (rope<_CharT,_Alloc>& __left,
+ const rope<_CharT,_Alloc>& __right)
+{
+ __left.append(__right);
+ return __left;
+}
+
+template <class _CharT, class _Alloc>
+inline
+rope<_CharT,_Alloc>
+operator+ (const rope<_CharT,_Alloc>& __left,
+ const _CharT* __right) {
+ size_t __rlen = rope<_CharT,_Alloc>::_S_char_ptr_len(__right);
+ return rope<_CharT,_Alloc>(
+ rope<_CharT,_Alloc>::_S_concat_char_iter(
+ __left._M_tree_ptr, __right, __rlen));
+}
+
+template <class _CharT, class _Alloc>
+inline
+rope<_CharT,_Alloc>&
+operator+= (rope<_CharT,_Alloc>& __left,
+ const _CharT* __right) {
+ __left.append(__right);
+ return __left;
+}
+
+template <class _CharT, class _Alloc>
+inline
+rope<_CharT,_Alloc>
+operator+ (const rope<_CharT,_Alloc>& __left, _CharT __right) {
+ return rope<_CharT,_Alloc>(
+ rope<_CharT,_Alloc>::_S_concat_char_iter(
+ __left._M_tree_ptr, &__right, 1));
+}
+
+template <class _CharT, class _Alloc>
+inline
+rope<_CharT,_Alloc>&
+operator+= (rope<_CharT,_Alloc>& __left, _CharT __right) {
+ __left.append(__right);
+ return __left;
+}
+
+template <class _CharT, class _Alloc>
+bool
+operator< (const rope<_CharT,_Alloc>& __left,
+ const rope<_CharT,_Alloc>& __right) {
+ return __left.compare(__right) < 0;
+}
+
+template <class _CharT, class _Alloc>
+bool
+operator== (const rope<_CharT,_Alloc>& __left,
+ const rope<_CharT,_Alloc>& __right) {
+ return __left.compare(__right) == 0;
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator== (const _Rope_char_ptr_proxy<_CharT,_Alloc>& __x,
+ const _Rope_char_ptr_proxy<_CharT,_Alloc>& __y) {
+ return (__x._M_pos == __y._M_pos && __x._M_root == __y._M_root);
+}
+
+template <class _CharT, class _Alloc>
+inline bool
+operator!= (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) {
+ return !(__x == __y);
+}
+
+template <class _CharT, class _Alloc>
+inline bool
+operator> (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) {
+ return __y < __x;
+}
+
+template <class _CharT, class _Alloc>
+inline bool
+operator<= (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) {
+ return !(__y < __x);
+}
+
+template <class _CharT, class _Alloc>
+inline bool
+operator>= (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) {
+ return !(__x < __y);
+}
+
+template <class _CharT, class _Alloc>
+inline bool operator!= (const _Rope_char_ptr_proxy<_CharT,_Alloc>& __x,
+ const _Rope_char_ptr_proxy<_CharT,_Alloc>& __y) {
+ return !(__x == __y);
+}
+
+template<class _CharT, class _Traits, class _Alloc>
+std::basic_ostream<_CharT, _Traits>& operator<<
+ (std::basic_ostream<_CharT, _Traits>& __o,
+ const rope<_CharT, _Alloc>& __r);
+
+typedef rope<char> crope;
+typedef rope<wchar_t> wrope;
+
+inline crope::reference __mutable_reference_at(crope& __c, size_t __i)
+{
+ return __c.mutable_reference_at(__i);
+}
+
+inline wrope::reference __mutable_reference_at(wrope& __c, size_t __i)
+{
+ return __c.mutable_reference_at(__i);
+}
+
+template <class _CharT, class _Alloc>
+inline void swap(rope<_CharT,_Alloc>& __x, rope<_CharT,_Alloc>& __y) {
+ __x.swap(__y);
+}
+
+// Hash functions should probably be revisited later:
+template<> struct hash<crope>
+{
+ size_t operator()(const crope& __str) const
+ {
+ size_t __size = __str.size();
+
+ if (0 == __size) return 0;
+ return 13*__str[0] + 5*__str[__size - 1] + __size;
+ }
+};
+
+
+template<> struct hash<wrope>
+{
+ size_t operator()(const wrope& __str) const
+ {
+ size_t __size = __str.size();
+
+ if (0 == __size) return 0;
+ return 13*__str[0] + 5*__str[__size - 1] + __size;
+ }
+};
+
+} // namespace __gnu_cxx
+
+# include <ext/ropeimpl.h>
+
+#endif
namespace __gnu_cxx
{
-using std::size_t;
-using std::printf;
-using std::basic_ostream;
-using std::__throw_length_error;
-using std::__alloc;
-using std::_Destroy;
-using std::uninitialized_fill_n;
+ using std::size_t;
+ using std::printf;
+ using std::basic_ostream;
+ using std::__throw_length_error;
+ using std::__alloc;
+ using std::_Destroy;
+ using std::uninitialized_fill_n;
// Set buf_start, buf_end, and buf_ptr appropriately, filling tmp_buf
// if necessary. Assumes _M_path_end[leaf_index] and leaf_pos are correct.
* include this header if you are using GCC 3 or later.
*/
-#ifndef __SGI_STL_INTERNAL_SLIST_H
-#define __SGI_STL_INTERNAL_SLIST_H
+#ifndef _SLIST
+#define _SLIST 1
#include <bits/stl_algobase.h>
#include <bits/stl_alloc.h>
} // namespace std
-#endif /* __SGI_STL_INTERNAL_SLIST_H */
-
-// Local Variables:
-// mode:C++
-// End:
+#endif
* This file is a GNU extension to the Standard C++ Library.
*/
-#ifndef _EXT_STDIO_FILEBUF
-#define _EXT_STDIO_FILEBUF
+#ifndef _STDIO_FILEBUF_H
+#define _STDIO_FILEBUF_H 1
#pragma GCC system_header
* This file is a GNU extension to the Standard C++ Library.
*/
-#ifndef _EXT_STDIO_SYNC_FILEBUF
-#define _EXT_STDIO_SYNC_FILEBUF
+#ifndef _STDIO_SYNC_FILEBUF_H
+#define _STDIO_SYNC_FILEBUF_H 1
#pragma GCC system_header
+++ /dev/null
-// SGI's rope implementation -*- C++ -*-
-
-// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library. This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 2, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING. If not, write to the Free
-// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
-
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
-
-/*
- * Copyright (c) 1997-1998
- * Silicon Graphics Computer Systems, Inc.
- *
- * Permission to use, copy, modify, distribute and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation. Silicon Graphics makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- */
-
-/** @file ext/stl_rope.h
- * This file is a GNU extension to the Standard C++ Library (possibly
- * containing extensions from the HP/SGI STL subset). You should only
- * include this header if you are using GCC 3 or later.
- */
-
-// rope<_CharT,_Alloc> is a sequence of _CharT.
-// Ropes appear to be mutable, but update operations
-// really copy enough of the data structure to leave the original
-// valid. Thus ropes can be logically copied by just copying
-// a pointer value.
-
-#ifndef __SGI_STL_INTERNAL_ROPE_H
-# define __SGI_STL_INTERNAL_ROPE_H
-
-# ifdef __GC
-# define __GC_CONST const
-# else
-# include <bits/stl_threads.h>
-# define __GC_CONST // constant except for deallocation
-# endif
-
-#include <ext/memory> // For uninitialized_copy_n
-
-namespace __gnu_cxx
-{
-using std::size_t;
-using std::ptrdiff_t;
-using std::allocator;
-using std::iterator;
-using std::reverse_iterator;
-using std::_Alloc_traits;
-using std::_Destroy;
-using std::_Refcount_Base;
-
-// The _S_eos function is used for those functions that
-// convert to/from C-like strings to detect the end of the string.
-
-// The end-of-C-string character.
-// This is what the draft standard says it should be.
-template <class _CharT>
-inline _CharT _S_eos(_CharT*) { return _CharT(); }
-
-// Test for basic character types.
-// For basic character types leaves having a trailing eos.
-template <class _CharT>
-inline bool _S_is_basic_char_type(_CharT*) { return false; }
-template <class _CharT>
-inline bool _S_is_one_byte_char_type(_CharT*) { return false; }
-
-inline bool _S_is_basic_char_type(char*) { return true; }
-inline bool _S_is_one_byte_char_type(char*) { return true; }
-inline bool _S_is_basic_char_type(wchar_t*) { return true; }
-
-// Store an eos iff _CharT is a basic character type.
-// Do not reference _S_eos if it isn't.
-template <class _CharT>
-inline void _S_cond_store_eos(_CharT&) {}
-
-inline void _S_cond_store_eos(char& __c) { __c = 0; }
-inline void _S_cond_store_eos(wchar_t& __c) { __c = 0; }
-
-// char_producers are logically functions that generate a section of
-// a string. These can be convereted to ropes. The resulting rope
-// invokes the char_producer on demand. This allows, for example,
-// files to be viewed as ropes without reading the entire file.
-template <class _CharT>
-class char_producer {
- public:
- virtual ~char_producer() {};
- virtual void operator()(size_t __start_pos, size_t __len,
- _CharT* __buffer) = 0;
- // Buffer should really be an arbitrary output iterator.
- // That way we could flatten directly into an ostream, etc.
- // This is thoroughly impossible, since iterator types don't
- // have runtime descriptions.
-};
-
-// Sequence buffers:
-//
-// Sequence must provide an append operation that appends an
-// array to the sequence. Sequence buffers are useful only if
-// appending an entire array is cheaper than appending element by element.
-// This is true for many string representations.
-// This should perhaps inherit from ostream<sequence::value_type>
-// and be implemented correspondingly, so that they can be used
-// for formatted. For the sake of portability, we don't do this yet.
-//
-// For now, sequence buffers behave as output iterators. But they also
-// behave a little like basic_ostringstream<sequence::value_type> and a
-// little like containers.
-
-template<class _Sequence, size_t _Buf_sz = 100>
-class sequence_buffer : public iterator<std::output_iterator_tag,void,void,void,void>
-{
- public:
- typedef typename _Sequence::value_type value_type;
- protected:
- _Sequence* _M_prefix;
- value_type _M_buffer[_Buf_sz];
- size_t _M_buf_count;
- public:
- void flush() {
- _M_prefix->append(_M_buffer, _M_buffer + _M_buf_count);
- _M_buf_count = 0;
- }
- ~sequence_buffer() { flush(); }
- sequence_buffer() : _M_prefix(0), _M_buf_count(0) {}
- sequence_buffer(const sequence_buffer& __x) {
- _M_prefix = __x._M_prefix;
- _M_buf_count = __x._M_buf_count;
- copy(__x._M_buffer, __x._M_buffer + __x._M_buf_count, _M_buffer);
- }
- sequence_buffer(sequence_buffer& __x) {
- __x.flush();
- _M_prefix = __x._M_prefix;
- _M_buf_count = 0;
- }
- sequence_buffer(_Sequence& __s) : _M_prefix(&__s), _M_buf_count(0) {}
- sequence_buffer& operator= (sequence_buffer& __x) {
- __x.flush();
- _M_prefix = __x._M_prefix;
- _M_buf_count = 0;
- return *this;
- }
- sequence_buffer& operator= (const sequence_buffer& __x) {
- _M_prefix = __x._M_prefix;
- _M_buf_count = __x._M_buf_count;
- copy(__x._M_buffer, __x._M_buffer + __x._M_buf_count, _M_buffer);
- return *this;
- }
- void push_back(value_type __x)
- {
- if (_M_buf_count < _Buf_sz) {
- _M_buffer[_M_buf_count] = __x;
- ++_M_buf_count;
- } else {
- flush();
- _M_buffer[0] = __x;
- _M_buf_count = 1;
- }
- }
- void append(value_type* __s, size_t __len)
- {
- if (__len + _M_buf_count <= _Buf_sz) {
- size_t __i = _M_buf_count;
- size_t __j = 0;
- for (; __j < __len; __i++, __j++) {
- _M_buffer[__i] = __s[__j];
- }
- _M_buf_count += __len;
- } else if (0 == _M_buf_count) {
- _M_prefix->append(__s, __s + __len);
- } else {
- flush();
- append(__s, __len);
- }
- }
- sequence_buffer& write(value_type* __s, size_t __len)
- {
- append(__s, __len);
- return *this;
- }
- sequence_buffer& put(value_type __x)
- {
- push_back(__x);
- return *this;
- }
- sequence_buffer& operator=(const value_type& __rhs)
- {
- push_back(__rhs);
- return *this;
- }
- sequence_buffer& operator*() { return *this; }
- sequence_buffer& operator++() { return *this; }
- sequence_buffer& operator++(int) { return *this; }
-};
-
-// The following should be treated as private, at least for now.
-template<class _CharT>
-class _Rope_char_consumer {
- public:
- // If we had member templates, these should not be virtual.
- // For now we need to use run-time parametrization where
- // compile-time would do. Hence this should all be private
- // for now.
- // The symmetry with char_producer is accidental and temporary.
- virtual ~_Rope_char_consumer() {};
- virtual bool operator()(const _CharT* __buffer, size_t __len) = 0;
-};
-
-// First a lot of forward declarations. The standard seems to require
-// much stricter "declaration before use" than many of the implementations
-// that preceded it.
-template<class _CharT, class _Alloc=allocator<_CharT> > class rope;
-template<class _CharT, class _Alloc> struct _Rope_RopeConcatenation;
-template<class _CharT, class _Alloc> struct _Rope_RopeLeaf;
-template<class _CharT, class _Alloc> struct _Rope_RopeFunction;
-template<class _CharT, class _Alloc> struct _Rope_RopeSubstring;
-template<class _CharT, class _Alloc> class _Rope_iterator;
-template<class _CharT, class _Alloc> class _Rope_const_iterator;
-template<class _CharT, class _Alloc> class _Rope_char_ref_proxy;
-template<class _CharT, class _Alloc> class _Rope_char_ptr_proxy;
-
-template<class _CharT, class _Alloc>
-bool operator== (const _Rope_char_ptr_proxy<_CharT,_Alloc>& __x,
- const _Rope_char_ptr_proxy<_CharT,_Alloc>& __y);
-
-template<class _CharT, class _Alloc>
-_Rope_const_iterator<_CharT,_Alloc> operator-
- (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- ptrdiff_t __n);
-
-template<class _CharT, class _Alloc>
-_Rope_const_iterator<_CharT,_Alloc> operator+
- (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- ptrdiff_t __n);
-
-template<class _CharT, class _Alloc>
-_Rope_const_iterator<_CharT,_Alloc> operator+
- (ptrdiff_t __n,
- const _Rope_const_iterator<_CharT,_Alloc>& __x);
-
-template<class _CharT, class _Alloc>
-bool operator==
- (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- const _Rope_const_iterator<_CharT,_Alloc>& __y);
-
-template<class _CharT, class _Alloc>
-bool operator<
- (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- const _Rope_const_iterator<_CharT,_Alloc>& __y);
-
-template<class _CharT, class _Alloc>
-ptrdiff_t operator-
- (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- const _Rope_const_iterator<_CharT,_Alloc>& __y);
-
-template<class _CharT, class _Alloc>
-_Rope_iterator<_CharT,_Alloc> operator-
- (const _Rope_iterator<_CharT,_Alloc>& __x,
- ptrdiff_t __n);
-
-template<class _CharT, class _Alloc>
-_Rope_iterator<_CharT,_Alloc> operator+
- (const _Rope_iterator<_CharT,_Alloc>& __x,
- ptrdiff_t __n);
-
-template<class _CharT, class _Alloc>
-_Rope_iterator<_CharT,_Alloc> operator+
- (ptrdiff_t __n,
- const _Rope_iterator<_CharT,_Alloc>& __x);
-
-template<class _CharT, class _Alloc>
-bool operator==
- (const _Rope_iterator<_CharT,_Alloc>& __x,
- const _Rope_iterator<_CharT,_Alloc>& __y);
-
-template<class _CharT, class _Alloc>
-bool operator<
- (const _Rope_iterator<_CharT,_Alloc>& __x,
- const _Rope_iterator<_CharT,_Alloc>& __y);
-
-template<class _CharT, class _Alloc>
-ptrdiff_t operator-
- (const _Rope_iterator<_CharT,_Alloc>& __x,
- const _Rope_iterator<_CharT,_Alloc>& __y);
-
-template<class _CharT, class _Alloc>
-rope<_CharT,_Alloc> operator+ (const rope<_CharT,_Alloc>& __left,
- const rope<_CharT,_Alloc>& __right);
-
-template<class _CharT, class _Alloc>
-rope<_CharT,_Alloc> operator+ (const rope<_CharT,_Alloc>& __left,
- const _CharT* __right);
-
-template<class _CharT, class _Alloc>
-rope<_CharT,_Alloc> operator+ (const rope<_CharT,_Alloc>& __left,
- _CharT __right);
-
-// Some helpers, so we can use power on ropes.
-// See below for why this isn't local to the implementation.
-
-// This uses a nonstandard refcount convention.
-// The result has refcount 0.
-template<class _CharT, class _Alloc>
-struct _Rope_Concat_fn
- : public std::binary_function<rope<_CharT,_Alloc>, rope<_CharT,_Alloc>,
- rope<_CharT,_Alloc> > {
- rope<_CharT,_Alloc> operator() (const rope<_CharT,_Alloc>& __x,
- const rope<_CharT,_Alloc>& __y) {
- return __x + __y;
- }
-};
-
-template <class _CharT, class _Alloc>
-inline
-rope<_CharT,_Alloc>
-identity_element(_Rope_Concat_fn<_CharT, _Alloc>)
-{
- return rope<_CharT,_Alloc>();
-}
-
-
-//
-// What follows should really be local to rope. Unfortunately,
-// that doesn't work, since it makes it impossible to define generic
-// equality on rope iterators. According to the draft standard, the
-// template parameters for such an equality operator cannot be inferred
-// from the occurrence of a member class as a parameter.
-// (SGI compilers in fact allow this, but the __result wouldn't be
-// portable.)
-// Similarly, some of the static member functions are member functions
-// only to avoid polluting the global namespace, and to circumvent
-// restrictions on type inference for template functions.
-//
-
-//
-// The internal data structure for representing a rope. This is
-// private to the implementation. A rope is really just a pointer
-// to one of these.
-//
-// A few basic functions for manipulating this data structure
-// are members of _RopeRep. Most of the more complex algorithms
-// are implemented as rope members.
-//
-// Some of the static member functions of _RopeRep have identically
-// named functions in rope that simply invoke the _RopeRep versions.
-//
-// A macro to introduce various allocation and deallocation functions
-// These need to be defined differently depending on whether or not
-// we are using standard conforming allocators, and whether the allocator
-// instances have real state. Thus this macro is invoked repeatedly
-// with different definitions of __ROPE_DEFINE_ALLOC.
-// __ROPE_DEFINE_ALLOC(type,name) defines
-// type * name_allocate(size_t) and
-// void name_deallocate(tipe *, size_t)
-// Both functions may or may not be static.
-
-#define __ROPE_DEFINE_ALLOCS(__a) \
- __ROPE_DEFINE_ALLOC(_CharT,_Data) /* character data */ \
- typedef _Rope_RopeConcatenation<_CharT,__a> __C; \
- __ROPE_DEFINE_ALLOC(__C,_C) \
- typedef _Rope_RopeLeaf<_CharT,__a> __L; \
- __ROPE_DEFINE_ALLOC(__L,_L) \
- typedef _Rope_RopeFunction<_CharT,__a> __F; \
- __ROPE_DEFINE_ALLOC(__F,_F) \
- typedef _Rope_RopeSubstring<_CharT,__a> __S; \
- __ROPE_DEFINE_ALLOC(__S,_S)
-
-// Internal rope nodes potentially store a copy of the allocator
-// instance used to allocate them. This is mostly redundant.
-// But the alternative would be to pass allocator instances around
-// in some form to nearly all internal functions, since any pointer
-// assignment may result in a zero reference count and thus require
-// deallocation.
-// The _Rope_rep_base class encapsulates
-// the differences between SGI-style allocators and standard-conforming
-// allocators.
-
-#define __STATIC_IF_SGI_ALLOC /* not static */
-
-// Base class for ordinary allocators.
-template <class _CharT, class _Allocator, bool _IsStatic>
-class _Rope_rep_alloc_base {
-public:
- typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type
- allocator_type;
- allocator_type get_allocator() const { return _M_data_allocator; }
- _Rope_rep_alloc_base(size_t __size, const allocator_type& __a)
- : _M_size(__size), _M_data_allocator(__a) {}
- size_t _M_size; // This is here only to avoid wasting space
- // for an otherwise empty base class.
-
-
-protected:
- allocator_type _M_data_allocator;
-
-# define __ROPE_DEFINE_ALLOC(_Tp, __name) \
- typedef typename \
- _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \
- /*static*/ _Tp * __name##_allocate(size_t __n) \
- { return __name##Allocator(_M_data_allocator).allocate(__n); } \
- void __name##_deallocate(_Tp* __p, size_t __n) \
- { __name##Allocator(_M_data_allocator).deallocate(__p, __n); }
- __ROPE_DEFINE_ALLOCS(_Allocator);
-# undef __ROPE_DEFINE_ALLOC
-};
-
-// Specialization for allocators that have the property that we don't
-// actually have to store an allocator object.
-template <class _CharT, class _Allocator>
-class _Rope_rep_alloc_base<_CharT,_Allocator,true> {
-public:
- typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type
- allocator_type;
- allocator_type get_allocator() const { return allocator_type(); }
- _Rope_rep_alloc_base(size_t __size, const allocator_type&)
- : _M_size(__size) {}
- size_t _M_size;
-
-protected:
-
-# define __ROPE_DEFINE_ALLOC(_Tp, __name) \
- typedef typename \
- _Alloc_traits<_Tp,_Allocator>::_Alloc_type __name##Alloc; \
- typedef typename \
- _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \
- static _Tp* __name##_allocate(size_t __n) \
- { return __name##Alloc::allocate(__n); } \
- void __name##_deallocate(_Tp *__p, size_t __n) \
- { __name##Alloc::deallocate(__p, __n); }
- __ROPE_DEFINE_ALLOCS(_Allocator);
-# undef __ROPE_DEFINE_ALLOC
-};
-
-template <class _CharT, class _Alloc>
-struct _Rope_rep_base
- : public _Rope_rep_alloc_base<_CharT,_Alloc,
- _Alloc_traits<_CharT,_Alloc>::_S_instanceless>
-{
- typedef _Rope_rep_alloc_base<_CharT,_Alloc,
- _Alloc_traits<_CharT,_Alloc>::_S_instanceless>
- _Base;
- typedef typename _Base::allocator_type allocator_type;
- _Rope_rep_base(size_t __size, const allocator_type& __a)
- : _Base(__size, __a) {}
-};
-
-
-template<class _CharT, class _Alloc>
-struct _Rope_RopeRep : public _Rope_rep_base<_CharT,_Alloc>
-# ifndef __GC
- , _Refcount_Base
-# endif
-{
- public:
- enum { _S_max_rope_depth = 45 };
- enum _Tag {_S_leaf, _S_concat, _S_substringfn, _S_function};
- _Tag _M_tag:8;
- bool _M_is_balanced:8;
- unsigned char _M_depth;
- __GC_CONST _CharT* _M_c_string;
- __gthread_mutex_t _M_c_string_lock;
- /* Flattened version of string, if needed. */
- /* typically 0. */
- /* If it's not 0, then the memory is owned */
- /* by this node. */
- /* In the case of a leaf, this may point to */
- /* the same memory as the data field. */
- typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
- allocator_type;
- _Rope_RopeRep(_Tag __t, int __d, bool __b, size_t __size,
- allocator_type __a)
- : _Rope_rep_base<_CharT,_Alloc>(__size, __a),
-# ifndef __GC
- _Refcount_Base(1),
-# endif
- _M_tag(__t), _M_is_balanced(__b), _M_depth(__d), _M_c_string(0)
-#ifdef __GTHREAD_MUTEX_INIT
- {
- // Do not copy a POSIX/gthr mutex once in use. However, bits are bits.
- __gthread_mutex_t __tmp = __GTHREAD_MUTEX_INIT;
- _M_c_string_lock = __tmp;
- }
-#else
- { __GTHREAD_MUTEX_INIT_FUNCTION (&_M_c_string_lock); }
-#endif
-# ifdef __GC
- void _M_incr () {}
-# endif
- static void _S_free_string(__GC_CONST _CharT*, size_t __len,
- allocator_type __a);
-# define __STL_FREE_STRING(__s, __l, __a) _S_free_string(__s, __l, __a);
- // Deallocate data section of a leaf.
- // This shouldn't be a member function.
- // But its hard to do anything else at the
- // moment, because it's templatized w.r.t.
- // an allocator.
- // Does nothing if __GC is defined.
-# ifndef __GC
- void _M_free_c_string();
- void _M_free_tree();
- // Deallocate t. Assumes t is not 0.
- void _M_unref_nonnil()
- {
- if (0 == _M_decr()) _M_free_tree();
- }
- void _M_ref_nonnil()
- {
- _M_incr();
- }
- static void _S_unref(_Rope_RopeRep* __t)
- {
- if (0 != __t) {
- __t->_M_unref_nonnil();
- }
- }
- static void _S_ref(_Rope_RopeRep* __t)
- {
- if (0 != __t) __t->_M_incr();
- }
- static void _S_free_if_unref(_Rope_RopeRep* __t)
- {
- if (0 != __t && 0 == __t->_M_ref_count) __t->_M_free_tree();
- }
-# else /* __GC */
- void _M_unref_nonnil() {}
- void _M_ref_nonnil() {}
- static void _S_unref(_Rope_RopeRep*) {}
- static void _S_ref(_Rope_RopeRep*) {}
- static void _S_free_if_unref(_Rope_RopeRep*) {}
-# endif
-
-};
-
-template<class _CharT, class _Alloc>
-struct _Rope_RopeLeaf : public _Rope_RopeRep<_CharT,_Alloc> {
- public:
- // Apparently needed by VC++
- // The data fields of leaves are allocated with some
- // extra space, to accommodate future growth and for basic
- // character types, to hold a trailing eos character.
- enum { _S_alloc_granularity = 8 };
- static size_t _S_rounded_up_size(size_t __n) {
- size_t __size_with_eos;
-
- if (_S_is_basic_char_type((_CharT*)0)) {
- __size_with_eos = __n + 1;
- } else {
- __size_with_eos = __n;
- }
-# ifdef __GC
- return __size_with_eos;
-# else
- // Allow slop for in-place expansion.
- return (__size_with_eos + _S_alloc_granularity-1)
- &~ (_S_alloc_granularity-1);
-# endif
- }
- __GC_CONST _CharT* _M_data; /* Not necessarily 0 terminated. */
- /* The allocated size is */
- /* _S_rounded_up_size(size), except */
- /* in the GC case, in which it */
- /* doesn't matter. */
- typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
- allocator_type;
- _Rope_RopeLeaf(__GC_CONST _CharT* __d, size_t __size, allocator_type __a)
- : _Rope_RopeRep<_CharT,_Alloc>(_Rope_RopeRep<_CharT,_Alloc>::_S_leaf,
- 0, true, __size, __a),
- _M_data(__d)
- {
- if (_S_is_basic_char_type((_CharT *)0)) {
- // already eos terminated.
- this->_M_c_string = __d;
- }
- }
- // The constructor assumes that d has been allocated with
- // the proper allocator and the properly padded size.
- // In contrast, the destructor deallocates the data:
-# ifndef __GC
- ~_Rope_RopeLeaf() {
- if (_M_data != this->_M_c_string) {
- _M_free_c_string();
- }
- __STL_FREE_STRING(_M_data, this->_M_size, get_allocator());
- }
-# endif
-};
-
-template<class _CharT, class _Alloc>
-struct _Rope_RopeConcatenation : public _Rope_RopeRep<_CharT,_Alloc> {
- public:
- _Rope_RopeRep<_CharT,_Alloc>* _M_left;
- _Rope_RopeRep<_CharT,_Alloc>* _M_right;
- typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
- allocator_type;
- _Rope_RopeConcatenation(_Rope_RopeRep<_CharT,_Alloc>* __l,
- _Rope_RopeRep<_CharT,_Alloc>* __r,
- allocator_type __a)
-
- : _Rope_RopeRep<_CharT,_Alloc>(_Rope_RopeRep<_CharT,_Alloc>::_S_concat,
- std::max(__l->_M_depth, __r->_M_depth) + 1,
- false,
- __l->_M_size + __r->_M_size, __a),
- _M_left(__l), _M_right(__r)
- {}
-# ifndef __GC
- ~_Rope_RopeConcatenation() {
- _M_free_c_string();
- _M_left->_M_unref_nonnil();
- _M_right->_M_unref_nonnil();
- }
-# endif
-};
-
-template<class _CharT, class _Alloc>
-struct _Rope_RopeFunction : public _Rope_RopeRep<_CharT,_Alloc> {
- public:
- char_producer<_CharT>* _M_fn;
-# ifndef __GC
- bool _M_delete_when_done; // Char_producer is owned by the
- // rope and should be explicitly
- // deleted when the rope becomes
- // inaccessible.
-# else
- // In the GC case, we either register the rope for
- // finalization, or not. Thus the field is unnecessary;
- // the information is stored in the collector data structures.
- // We do need a finalization procedure to be invoked by the
- // collector.
- static void _S_fn_finalization_proc(void * __tree, void *) {
- delete ((_Rope_RopeFunction *)__tree) -> _M_fn;
- }
-# endif
- typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
- allocator_type;
- _Rope_RopeFunction(char_producer<_CharT>* __f, size_t __size,
- bool __d, allocator_type __a)
- : _Rope_RopeRep<_CharT,_Alloc>(_Rope_RopeRep<_CharT,_Alloc>::_S_function,
- 0, true, __size, __a)
- , _M_fn(__f)
-# ifndef __GC
- , _M_delete_when_done(__d)
-# endif
- {
-# ifdef __GC
- if (__d) {
- GC_REGISTER_FINALIZER(
- this, _Rope_RopeFunction::_S_fn_finalization_proc, 0, 0, 0);
- }
-# endif
- }
-# ifndef __GC
- ~_Rope_RopeFunction() {
- _M_free_c_string();
- if (_M_delete_when_done) {
- delete _M_fn;
- }
- }
-# endif
-};
-// Substring results are usually represented using just
-// concatenation nodes. But in the case of very long flat ropes
-// or ropes with a functional representation that isn't practical.
-// In that case, we represent the __result as a special case of
-// RopeFunction, whose char_producer points back to the rope itself.
-// In all cases except repeated substring operations and
-// deallocation, we treat the __result as a RopeFunction.
-template<class _CharT, class _Alloc>
-struct _Rope_RopeSubstring : public _Rope_RopeFunction<_CharT,_Alloc>,
- public char_producer<_CharT> {
- public:
- // XXX this whole class should be rewritten.
- _Rope_RopeRep<_CharT,_Alloc>* _M_base; // not 0
- size_t _M_start;
- virtual void operator()(size_t __start_pos, size_t __req_len,
- _CharT* __buffer) {
- switch(_M_base->_M_tag) {
- case _Rope_RopeFunction<_CharT,_Alloc>::_S_function:
- case _Rope_RopeFunction<_CharT,_Alloc>::_S_substringfn:
- {
- char_producer<_CharT>* __fn =
- ((_Rope_RopeFunction<_CharT,_Alloc>*)_M_base)->_M_fn;
- (*__fn)(__start_pos + _M_start, __req_len, __buffer);
- }
- break;
- case _Rope_RopeFunction<_CharT,_Alloc>::_S_leaf:
- {
- __GC_CONST _CharT* __s =
- ((_Rope_RopeLeaf<_CharT,_Alloc>*)_M_base)->_M_data;
- uninitialized_copy_n(__s + __start_pos + _M_start, __req_len,
- __buffer);
- }
- break;
- default:
- break;
- }
- }
- typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
- allocator_type;
- _Rope_RopeSubstring(_Rope_RopeRep<_CharT,_Alloc>* __b, size_t __s,
- size_t __l, allocator_type __a)
- : _Rope_RopeFunction<_CharT,_Alloc>(this, __l, false, __a),
- char_producer<_CharT>(),
- _M_base(__b),
- _M_start(__s)
- {
-# ifndef __GC
- _M_base->_M_ref_nonnil();
-# endif
- this->_M_tag = _Rope_RopeFunction<_CharT,_Alloc>::_S_substringfn;
- }
- virtual ~_Rope_RopeSubstring()
- {
-# ifndef __GC
- _M_base->_M_unref_nonnil();
- // _M_free_c_string(); -- done by parent class
-# endif
- }
-};
-
-
-// Self-destructing pointers to Rope_rep.
-// These are not conventional smart pointers. Their
-// only purpose in life is to ensure that unref is called
-// on the pointer either at normal exit or if an exception
-// is raised. It is the caller's responsibility to
-// adjust reference counts when these pointers are initialized
-// or assigned to. (This convention significantly reduces
-// the number of potentially expensive reference count
-// updates.)
-#ifndef __GC
- template<class _CharT, class _Alloc>
- struct _Rope_self_destruct_ptr {
- _Rope_RopeRep<_CharT,_Alloc>* _M_ptr;
- ~_Rope_self_destruct_ptr()
- { _Rope_RopeRep<_CharT,_Alloc>::_S_unref(_M_ptr); }
-#ifdef __EXCEPTIONS
- _Rope_self_destruct_ptr() : _M_ptr(0) {};
-#else
- _Rope_self_destruct_ptr() {};
-#endif
- _Rope_self_destruct_ptr(_Rope_RopeRep<_CharT,_Alloc>* __p) : _M_ptr(__p) {}
- _Rope_RopeRep<_CharT,_Alloc>& operator*() { return *_M_ptr; }
- _Rope_RopeRep<_CharT,_Alloc>* operator->() { return _M_ptr; }
- operator _Rope_RopeRep<_CharT,_Alloc>*() { return _M_ptr; }
- _Rope_self_destruct_ptr& operator= (_Rope_RopeRep<_CharT,_Alloc>* __x)
- { _M_ptr = __x; return *this; }
- };
-#endif
-
-// Dereferencing a nonconst iterator has to return something
-// that behaves almost like a reference. It's not possible to
-// return an actual reference since assignment requires extra
-// work. And we would get into the same problems as with the
-// CD2 version of basic_string.
-template<class _CharT, class _Alloc>
-class _Rope_char_ref_proxy {
- friend class rope<_CharT,_Alloc>;
- friend class _Rope_iterator<_CharT,_Alloc>;
- friend class _Rope_char_ptr_proxy<_CharT,_Alloc>;
-# ifdef __GC
- typedef _Rope_RopeRep<_CharT,_Alloc>* _Self_destruct_ptr;
-# else
- typedef _Rope_self_destruct_ptr<_CharT,_Alloc> _Self_destruct_ptr;
-# endif
- typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep;
- typedef rope<_CharT,_Alloc> _My_rope;
- size_t _M_pos;
- _CharT _M_current;
- bool _M_current_valid;
- _My_rope* _M_root; // The whole rope.
- public:
- _Rope_char_ref_proxy(_My_rope* __r, size_t __p)
- : _M_pos(__p), _M_current_valid(false), _M_root(__r) {}
- _Rope_char_ref_proxy(const _Rope_char_ref_proxy& __x)
- : _M_pos(__x._M_pos), _M_current_valid(false), _M_root(__x._M_root) {}
- // Don't preserve cache if the reference can outlive the
- // expression. We claim that's not possible without calling
- // a copy constructor or generating reference to a proxy
- // reference. We declare the latter to have undefined semantics.
- _Rope_char_ref_proxy(_My_rope* __r, size_t __p, _CharT __c)
- : _M_pos(__p), _M_current(__c), _M_current_valid(true), _M_root(__r) {}
- inline operator _CharT () const;
- _Rope_char_ref_proxy& operator= (_CharT __c);
- _Rope_char_ptr_proxy<_CharT,_Alloc> operator& () const;
- _Rope_char_ref_proxy& operator= (const _Rope_char_ref_proxy& __c) {
- return operator=((_CharT)__c);
- }
-};
-
-template<class _CharT, class __Alloc>
-inline void swap(_Rope_char_ref_proxy <_CharT, __Alloc > __a,
- _Rope_char_ref_proxy <_CharT, __Alloc > __b) {
- _CharT __tmp = __a;
- __a = __b;
- __b = __tmp;
-}
-
-template<class _CharT, class _Alloc>
-class _Rope_char_ptr_proxy {
- // XXX this class should be rewritten.
- friend class _Rope_char_ref_proxy<_CharT,_Alloc>;
- size_t _M_pos;
- rope<_CharT,_Alloc>* _M_root; // The whole rope.
- public:
- _Rope_char_ptr_proxy(const _Rope_char_ref_proxy<_CharT,_Alloc>& __x)
- : _M_pos(__x._M_pos), _M_root(__x._M_root) {}
- _Rope_char_ptr_proxy(const _Rope_char_ptr_proxy& __x)
- : _M_pos(__x._M_pos), _M_root(__x._M_root) {}
- _Rope_char_ptr_proxy() {}
- _Rope_char_ptr_proxy(_CharT* __x) : _M_root(0), _M_pos(0) {
- }
- _Rope_char_ptr_proxy&
- operator= (const _Rope_char_ptr_proxy& __x) {
- _M_pos = __x._M_pos;
- _M_root = __x._M_root;
- return *this;
- }
- template<class _CharT2, class _Alloc2>
- friend bool operator== (const _Rope_char_ptr_proxy<_CharT2,_Alloc2>& __x,
- const _Rope_char_ptr_proxy<_CharT2,_Alloc2>& __y);
- _Rope_char_ref_proxy<_CharT,_Alloc> operator*() const {
- return _Rope_char_ref_proxy<_CharT,_Alloc>(_M_root, _M_pos);
- }
-};
-
-
-// Rope iterators:
-// Unlike in the C version, we cache only part of the stack
-// for rope iterators, since they must be efficiently copyable.
-// When we run out of cache, we have to reconstruct the iterator
-// value.
-// Pointers from iterators are not included in reference counts.
-// Iterators are assumed to be thread private. Ropes can
-// be shared.
-
-template<class _CharT, class _Alloc>
-class _Rope_iterator_base
- : public iterator<std::random_access_iterator_tag, _CharT>
-{
- friend class rope<_CharT,_Alloc>;
- public:
- typedef _Alloc _allocator_type; // used in _Rope_rotate, VC++ workaround
- typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep;
- // Borland doesn't want this to be protected.
- protected:
- enum { _S_path_cache_len = 4 }; // Must be <= 9.
- enum { _S_iterator_buf_len = 15 };
- size_t _M_current_pos;
- _RopeRep* _M_root; // The whole rope.
- size_t _M_leaf_pos; // Starting position for current leaf
- __GC_CONST _CharT* _M_buf_start;
- // Buffer possibly
- // containing current char.
- __GC_CONST _CharT* _M_buf_ptr;
- // Pointer to current char in buffer.
- // != 0 ==> buffer valid.
- __GC_CONST _CharT* _M_buf_end;
- // One past __last valid char in buffer.
- // What follows is the path cache. We go out of our
- // way to make this compact.
- // Path_end contains the bottom section of the path from
- // the root to the current leaf.
- const _RopeRep* _M_path_end[_S_path_cache_len];
- int _M_leaf_index; // Last valid __pos in path_end;
- // _M_path_end[0] ... _M_path_end[leaf_index-1]
- // point to concatenation nodes.
- unsigned char _M_path_directions;
- // (path_directions >> __i) & 1 is 1
- // iff we got from _M_path_end[leaf_index - __i - 1]
- // to _M_path_end[leaf_index - __i] by going to the
- // __right. Assumes path_cache_len <= 9.
- _CharT _M_tmp_buf[_S_iterator_buf_len];
- // Short buffer for surrounding chars.
- // This is useful primarily for
- // RopeFunctions. We put the buffer
- // here to avoid locking in the
- // multithreaded case.
- // The cached path is generally assumed to be valid
- // only if the buffer is valid.
- static void _S_setbuf(_Rope_iterator_base& __x);
- // Set buffer contents given
- // path cache.
- static void _S_setcache(_Rope_iterator_base& __x);
- // Set buffer contents and
- // path cache.
- static void _S_setcache_for_incr(_Rope_iterator_base& __x);
- // As above, but assumes path
- // cache is valid for previous posn.
- _Rope_iterator_base() {}
- _Rope_iterator_base(_RopeRep* __root, size_t __pos)
- : _M_current_pos(__pos), _M_root(__root), _M_buf_ptr(0) {}
- void _M_incr(size_t __n);
- void _M_decr(size_t __n);
- public:
- size_t index() const { return _M_current_pos; }
- _Rope_iterator_base(const _Rope_iterator_base& __x) {
- if (0 != __x._M_buf_ptr) {
- *this = __x;
- } else {
- _M_current_pos = __x._M_current_pos;
- _M_root = __x._M_root;
- _M_buf_ptr = 0;
- }
- }
-};
-
-template<class _CharT, class _Alloc> class _Rope_iterator;
-
-template<class _CharT, class _Alloc>
-class _Rope_const_iterator : public _Rope_iterator_base<_CharT,_Alloc> {
- friend class rope<_CharT,_Alloc>;
- protected:
- typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep;
- // The one from the base class may not be directly visible.
- _Rope_const_iterator(const _RopeRep* __root, size_t __pos):
- _Rope_iterator_base<_CharT,_Alloc>(
- const_cast<_RopeRep*>(__root), __pos)
- // Only nonconst iterators modify root ref count
- {}
- public:
- typedef _CharT reference; // Really a value. Returning a reference
- // Would be a mess, since it would have
- // to be included in refcount.
- typedef const _CharT* pointer;
-
- public:
- _Rope_const_iterator() {};
- _Rope_const_iterator(const _Rope_const_iterator& __x) :
- _Rope_iterator_base<_CharT,_Alloc>(__x) { }
- _Rope_const_iterator(const _Rope_iterator<_CharT,_Alloc>& __x);
- _Rope_const_iterator(const rope<_CharT,_Alloc>& __r, size_t __pos) :
- _Rope_iterator_base<_CharT,_Alloc>(__r._M_tree_ptr, __pos) {}
- _Rope_const_iterator& operator= (const _Rope_const_iterator& __x) {
- if (0 != __x._M_buf_ptr) {
- *(static_cast<_Rope_iterator_base<_CharT,_Alloc>*>(this)) = __x;
- } else {
- this->_M_current_pos = __x._M_current_pos;
- this->_M_root = __x._M_root;
- this->_M_buf_ptr = 0;
- }
- return(*this);
- }
- reference operator*() {
- if (0 == this->_M_buf_ptr) _S_setcache(*this);
- return *this->_M_buf_ptr;
- }
- _Rope_const_iterator& operator++() {
- __GC_CONST _CharT* __next;
- if (0 != this->_M_buf_ptr
- && (__next = this->_M_buf_ptr + 1) < this->_M_buf_end) {
- this->_M_buf_ptr = __next;
- ++this->_M_current_pos;
- } else {
- _M_incr(1);
- }
- return *this;
- }
- _Rope_const_iterator& operator+=(ptrdiff_t __n) {
- if (__n >= 0) {
- _M_incr(__n);
- } else {
- _M_decr(-__n);
- }
- return *this;
- }
- _Rope_const_iterator& operator--() {
- _M_decr(1);
- return *this;
- }
- _Rope_const_iterator& operator-=(ptrdiff_t __n) {
- if (__n >= 0) {
- _M_decr(__n);
- } else {
- _M_incr(-__n);
- }
- return *this;
- }
- _Rope_const_iterator operator++(int) {
- size_t __old_pos = this->_M_current_pos;
- _M_incr(1);
- return _Rope_const_iterator<_CharT,_Alloc>(this->_M_root, __old_pos);
- // This makes a subsequent dereference expensive.
- // Perhaps we should instead copy the iterator
- // if it has a valid cache?
- }
- _Rope_const_iterator operator--(int) {
- size_t __old_pos = this->_M_current_pos;
- _M_decr(1);
- return _Rope_const_iterator<_CharT,_Alloc>(this->_M_root, __old_pos);
- }
- template<class _CharT2, class _Alloc2>
- friend _Rope_const_iterator<_CharT2,_Alloc2> operator-
- (const _Rope_const_iterator<_CharT2,_Alloc2>& __x,
- ptrdiff_t __n);
- template<class _CharT2, class _Alloc2>
- friend _Rope_const_iterator<_CharT2,_Alloc2> operator+
- (const _Rope_const_iterator<_CharT2,_Alloc2>& __x,
- ptrdiff_t __n);
- template<class _CharT2, class _Alloc2>
- friend _Rope_const_iterator<_CharT2,_Alloc2> operator+
- (ptrdiff_t __n,
- const _Rope_const_iterator<_CharT2,_Alloc2>& __x);
- reference operator[](size_t __n) {
- return rope<_CharT,_Alloc>::_S_fetch(this->_M_root,
- this->_M_current_pos + __n);
- }
-
- template<class _CharT2, class _Alloc2>
- friend bool operator==
- (const _Rope_const_iterator<_CharT2,_Alloc2>& __x,
- const _Rope_const_iterator<_CharT2,_Alloc2>& __y);
- template<class _CharT2, class _Alloc2>
- friend bool operator<
- (const _Rope_const_iterator<_CharT2,_Alloc2>& __x,
- const _Rope_const_iterator<_CharT2,_Alloc2>& __y);
- template<class _CharT2, class _Alloc2>
- friend ptrdiff_t operator-
- (const _Rope_const_iterator<_CharT2,_Alloc2>& __x,
- const _Rope_const_iterator<_CharT2,_Alloc2>& __y);
-};
-
-template<class _CharT, class _Alloc>
-class _Rope_iterator : public _Rope_iterator_base<_CharT,_Alloc> {
- friend class rope<_CharT,_Alloc>;
- protected:
- typedef typename _Rope_iterator_base<_CharT,_Alloc>::_RopeRep _RopeRep;
- rope<_CharT,_Alloc>* _M_root_rope;
- // root is treated as a cached version of this,
- // and is used to detect changes to the underlying
- // rope.
- // Root is included in the reference count.
- // This is necessary so that we can detect changes reliably.
- // Unfortunately, it requires careful bookkeeping for the
- // nonGC case.
- _Rope_iterator(rope<_CharT,_Alloc>* __r, size_t __pos)
- : _Rope_iterator_base<_CharT,_Alloc>(__r->_M_tree_ptr, __pos),
- _M_root_rope(__r)
- { _RopeRep::_S_ref(this->_M_root);
- if (!(__r -> empty()))_S_setcache(*this); }
-
- void _M_check();
- public:
- typedef _Rope_char_ref_proxy<_CharT,_Alloc> reference;
- typedef _Rope_char_ref_proxy<_CharT,_Alloc>* pointer;
-
- public:
- rope<_CharT,_Alloc>& container() { return *_M_root_rope; }
- _Rope_iterator() {
- this->_M_root = 0; // Needed for reference counting.
- };
- _Rope_iterator(const _Rope_iterator& __x) :
- _Rope_iterator_base<_CharT,_Alloc>(__x) {
- _M_root_rope = __x._M_root_rope;
- _RopeRep::_S_ref(this->_M_root);
- }
- _Rope_iterator(rope<_CharT,_Alloc>& __r, size_t __pos);
- ~_Rope_iterator() {
- _RopeRep::_S_unref(this->_M_root);
- }
- _Rope_iterator& operator= (const _Rope_iterator& __x) {
- _RopeRep* __old = this->_M_root;
-
- _RopeRep::_S_ref(__x._M_root);
- if (0 != __x._M_buf_ptr) {
- _M_root_rope = __x._M_root_rope;
- *(static_cast<_Rope_iterator_base<_CharT,_Alloc>*>(this)) = __x;
- } else {
- this->_M_current_pos = __x._M_current_pos;
- this->_M_root = __x._M_root;
- _M_root_rope = __x._M_root_rope;
- this->_M_buf_ptr = 0;
- }
- _RopeRep::_S_unref(__old);
- return(*this);
- }
- reference operator*() {
- _M_check();
- if (0 == this->_M_buf_ptr) {
- return _Rope_char_ref_proxy<_CharT,_Alloc>(
- _M_root_rope, this->_M_current_pos);
- } else {
- return _Rope_char_ref_proxy<_CharT,_Alloc>(
- _M_root_rope, this->_M_current_pos, *this->_M_buf_ptr);
- }
- }
- _Rope_iterator& operator++() {
- _M_incr(1);
- return *this;
- }
- _Rope_iterator& operator+=(ptrdiff_t __n) {
- if (__n >= 0) {
- _M_incr(__n);
- } else {
- _M_decr(-__n);
- }
- return *this;
- }
- _Rope_iterator& operator--() {
- _M_decr(1);
- return *this;
- }
- _Rope_iterator& operator-=(ptrdiff_t __n) {
- if (__n >= 0) {
- _M_decr(__n);
- } else {
- _M_incr(-__n);
- }
- return *this;
- }
- _Rope_iterator operator++(int) {
- size_t __old_pos = this->_M_current_pos;
- _M_incr(1);
- return _Rope_iterator<_CharT,_Alloc>(_M_root_rope, __old_pos);
- }
- _Rope_iterator operator--(int) {
- size_t __old_pos = this->_M_current_pos;
- _M_decr(1);
- return _Rope_iterator<_CharT,_Alloc>(_M_root_rope, __old_pos);
- }
- reference operator[](ptrdiff_t __n) {
- return _Rope_char_ref_proxy<_CharT,_Alloc>(
- _M_root_rope, this->_M_current_pos + __n);
- }
-
- template<class _CharT2, class _Alloc2>
- friend bool operator==
- (const _Rope_iterator<_CharT2,_Alloc2>& __x,
- const _Rope_iterator<_CharT2,_Alloc2>& __y);
- template<class _CharT2, class _Alloc2>
- friend bool operator<
- (const _Rope_iterator<_CharT2,_Alloc2>& __x,
- const _Rope_iterator<_CharT2,_Alloc2>& __y);
- template<class _CharT2, class _Alloc2>
- friend ptrdiff_t operator-
- (const _Rope_iterator<_CharT2,_Alloc2>& __x,
- const _Rope_iterator<_CharT2,_Alloc2>& __y);
- template<class _CharT2, class _Alloc2>
- friend _Rope_iterator<_CharT2,_Alloc2> operator-
- (const _Rope_iterator<_CharT2,_Alloc2>& __x,
- ptrdiff_t __n);
- template<class _CharT2, class _Alloc2>
- friend _Rope_iterator<_CharT2,_Alloc2> operator+
- (const _Rope_iterator<_CharT2,_Alloc2>& __x,
- ptrdiff_t __n);
- template<class _CharT2, class _Alloc2>
- friend _Rope_iterator<_CharT2,_Alloc2> operator+
- (ptrdiff_t __n,
- const _Rope_iterator<_CharT2,_Alloc2>& __x);
-};
-
-// The rope base class encapsulates
-// the differences between SGI-style allocators and standard-conforming
-// allocators.
-
-// Base class for ordinary allocators.
-template <class _CharT, class _Allocator, bool _IsStatic>
-class _Rope_alloc_base {
-public:
- typedef _Rope_RopeRep<_CharT,_Allocator> _RopeRep;
- typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type
- allocator_type;
- allocator_type get_allocator() const { return _M_data_allocator; }
- _Rope_alloc_base(_RopeRep *__t, const allocator_type& __a)
- : _M_tree_ptr(__t), _M_data_allocator(__a) {}
- _Rope_alloc_base(const allocator_type& __a)
- : _M_data_allocator(__a) {}
-
-protected:
- // The only data members of a rope:
- allocator_type _M_data_allocator;
- _RopeRep* _M_tree_ptr;
-
-# define __ROPE_DEFINE_ALLOC(_Tp, __name) \
- typedef typename \
- _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \
- _Tp* __name##_allocate(size_t __n) const \
- { return __name##Allocator(_M_data_allocator).allocate(__n); } \
- void __name##_deallocate(_Tp *__p, size_t __n) const \
- { __name##Allocator(_M_data_allocator).deallocate(__p, __n); }
- __ROPE_DEFINE_ALLOCS(_Allocator)
-# undef __ROPE_DEFINE_ALLOC
-};
-
-// Specialization for allocators that have the property that we don't
-// actually have to store an allocator object.
-template <class _CharT, class _Allocator>
-class _Rope_alloc_base<_CharT,_Allocator,true> {
-public:
- typedef _Rope_RopeRep<_CharT,_Allocator> _RopeRep;
- typedef typename _Alloc_traits<_CharT,_Allocator>::allocator_type
- allocator_type;
- allocator_type get_allocator() const { return allocator_type(); }
- _Rope_alloc_base(_RopeRep *__t, const allocator_type&)
- : _M_tree_ptr(__t) {}
- _Rope_alloc_base(const allocator_type&) {}
-
-protected:
- // The only data member of a rope:
- _RopeRep *_M_tree_ptr;
-
-# define __ROPE_DEFINE_ALLOC(_Tp, __name) \
- typedef typename \
- _Alloc_traits<_Tp,_Allocator>::_Alloc_type __name##Alloc; \
- typedef typename \
- _Alloc_traits<_Tp,_Allocator>::allocator_type __name##Allocator; \
- static _Tp* __name##_allocate(size_t __n) \
- { return __name##Alloc::allocate(__n); } \
- static void __name##_deallocate(_Tp *__p, size_t __n) \
- { __name##Alloc::deallocate(__p, __n); }
- __ROPE_DEFINE_ALLOCS(_Allocator)
-# undef __ROPE_DEFINE_ALLOC
-};
-
-template <class _CharT, class _Alloc>
-struct _Rope_base
- : public _Rope_alloc_base<_CharT,_Alloc,
- _Alloc_traits<_CharT,_Alloc>::_S_instanceless>
-{
- typedef _Rope_alloc_base<_CharT,_Alloc,
- _Alloc_traits<_CharT,_Alloc>::_S_instanceless>
- _Base;
- typedef typename _Base::allocator_type allocator_type;
- typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep;
- // The one in _Base may not be visible due to template rules.
- _Rope_base(_RopeRep* __t, const allocator_type& __a) : _Base(__t, __a) {}
- _Rope_base(const allocator_type& __a) : _Base(__a) {}
-};
-
-
-/**
- * This is an SGI extension.
- * @ingroup SGIextensions
- * @doctodo
-*/
-template <class _CharT, class _Alloc>
-class rope : public _Rope_base<_CharT,_Alloc> {
- public:
- typedef _CharT value_type;
- typedef ptrdiff_t difference_type;
- typedef size_t size_type;
- typedef _CharT const_reference;
- typedef const _CharT* const_pointer;
- typedef _Rope_iterator<_CharT,_Alloc> iterator;
- typedef _Rope_const_iterator<_CharT,_Alloc> const_iterator;
- typedef _Rope_char_ref_proxy<_CharT,_Alloc> reference;
- typedef _Rope_char_ptr_proxy<_CharT,_Alloc> pointer;
-
- friend class _Rope_iterator<_CharT,_Alloc>;
- friend class _Rope_const_iterator<_CharT,_Alloc>;
- friend struct _Rope_RopeRep<_CharT,_Alloc>;
- friend class _Rope_iterator_base<_CharT,_Alloc>;
- friend class _Rope_char_ptr_proxy<_CharT,_Alloc>;
- friend class _Rope_char_ref_proxy<_CharT,_Alloc>;
- friend struct _Rope_RopeSubstring<_CharT,_Alloc>;
-
- protected:
- typedef _Rope_base<_CharT,_Alloc> _Base;
- typedef typename _Base::allocator_type allocator_type;
- using _Base::_M_tree_ptr;
- typedef __GC_CONST _CharT* _Cstrptr;
-
- static _CharT _S_empty_c_str[1];
-
- static bool _S_is0(_CharT __c) { return __c == _S_eos((_CharT*)0); }
- enum { _S_copy_max = 23 };
- // For strings shorter than _S_copy_max, we copy to
- // concatenate.
-
- typedef _Rope_RopeRep<_CharT,_Alloc> _RopeRep;
- typedef _Rope_RopeConcatenation<_CharT,_Alloc> _RopeConcatenation;
- typedef _Rope_RopeLeaf<_CharT,_Alloc> _RopeLeaf;
- typedef _Rope_RopeFunction<_CharT,_Alloc> _RopeFunction;
- typedef _Rope_RopeSubstring<_CharT,_Alloc> _RopeSubstring;
-
- // Retrieve a character at the indicated position.
- static _CharT _S_fetch(_RopeRep* __r, size_type __pos);
-
-# ifndef __GC
- // Obtain a pointer to the character at the indicated position.
- // The pointer can be used to change the character.
- // If such a pointer cannot be produced, as is frequently the
- // case, 0 is returned instead.
- // (Returns nonzero only if all nodes in the path have a refcount
- // of 1.)
- static _CharT* _S_fetch_ptr(_RopeRep* __r, size_type __pos);
-# endif
-
- static bool _S_apply_to_pieces(
- // should be template parameter
- _Rope_char_consumer<_CharT>& __c,
- const _RopeRep* __r,
- size_t __begin, size_t __end);
- // begin and end are assumed to be in range.
-
-# ifndef __GC
- static void _S_unref(_RopeRep* __t)
- {
- _RopeRep::_S_unref(__t);
- }
- static void _S_ref(_RopeRep* __t)
- {
- _RopeRep::_S_ref(__t);
- }
-# else /* __GC */
- static void _S_unref(_RopeRep*) {}
- static void _S_ref(_RopeRep*) {}
-# endif
-
-
-# ifdef __GC
- typedef _Rope_RopeRep<_CharT,_Alloc>* _Self_destruct_ptr;
-# else
- typedef _Rope_self_destruct_ptr<_CharT,_Alloc> _Self_destruct_ptr;
-# endif
-
- // _Result is counted in refcount.
- static _RopeRep* _S_substring(_RopeRep* __base,
- size_t __start, size_t __endp1);
-
- static _RopeRep* _S_concat_char_iter(_RopeRep* __r,
- const _CharT* __iter, size_t __slen);
- // Concatenate rope and char ptr, copying __s.
- // Should really take an arbitrary iterator.
- // Result is counted in refcount.
- static _RopeRep* _S_destr_concat_char_iter(_RopeRep* __r,
- const _CharT* __iter, size_t __slen)
- // As above, but one reference to __r is about to be
- // destroyed. Thus the pieces may be recycled if all
- // relevant reference counts are 1.
-# ifdef __GC
- // We can't really do anything since refcounts are unavailable.
- { return _S_concat_char_iter(__r, __iter, __slen); }
-# else
- ;
-# endif
-
- static _RopeRep* _S_concat(_RopeRep* __left, _RopeRep* __right);
- // General concatenation on _RopeRep. _Result
- // has refcount of 1. Adjusts argument refcounts.
-
- public:
- void apply_to_pieces( size_t __begin, size_t __end,
- _Rope_char_consumer<_CharT>& __c) const {
- _S_apply_to_pieces(__c, this->_M_tree_ptr, __begin, __end);
- }
-
-
- protected:
-
- static size_t _S_rounded_up_size(size_t __n) {
- return _RopeLeaf::_S_rounded_up_size(__n);
- }
-
- static size_t _S_allocated_capacity(size_t __n) {
- if (_S_is_basic_char_type((_CharT*)0)) {
- return _S_rounded_up_size(__n) - 1;
- } else {
- return _S_rounded_up_size(__n);
- }
- }
-
- // Allocate and construct a RopeLeaf using the supplied allocator
- // Takes ownership of s instead of copying.
- static _RopeLeaf* _S_new_RopeLeaf(__GC_CONST _CharT *__s,
- size_t __size, allocator_type __a)
- {
- _RopeLeaf* __space = typename _Base::_LAllocator(__a).allocate(1);
- return new(__space) _RopeLeaf(__s, __size, __a);
- }
-
- static _RopeConcatenation* _S_new_RopeConcatenation(
- _RopeRep* __left, _RopeRep* __right,
- allocator_type __a)
- {
- _RopeConcatenation* __space = typename _Base::_CAllocator(__a).allocate(1);
- return new(__space) _RopeConcatenation(__left, __right, __a);
- }
-
- static _RopeFunction* _S_new_RopeFunction(char_producer<_CharT>* __f,
- size_t __size, bool __d, allocator_type __a)
- {
- _RopeFunction* __space = typename _Base::_FAllocator(__a).allocate(1);
- return new(__space) _RopeFunction(__f, __size, __d, __a);
- }
-
- static _RopeSubstring* _S_new_RopeSubstring(
- _Rope_RopeRep<_CharT,_Alloc>* __b, size_t __s,
- size_t __l, allocator_type __a)
- {
- _RopeSubstring* __space = typename _Base::_SAllocator(__a).allocate(1);
- return new(__space) _RopeSubstring(__b, __s, __l, __a);
- }
-
- static
- _RopeLeaf* _S_RopeLeaf_from_unowned_char_ptr(const _CharT *__s,
- size_t __size, allocator_type __a)
-# define __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __size, __a) \
- _S_RopeLeaf_from_unowned_char_ptr(__s, __size, __a)
- {
- if (0 == __size) return 0;
- _CharT* __buf = __a.allocate(_S_rounded_up_size(__size));
-
- uninitialized_copy_n(__s, __size, __buf);
- _S_cond_store_eos(__buf[__size]);
- try {
- return _S_new_RopeLeaf(__buf, __size, __a);
- }
- catch(...)
- {
- _RopeRep::__STL_FREE_STRING(__buf, __size, __a);
- __throw_exception_again;
- }
- }
-
-
- // Concatenation of nonempty strings.
- // Always builds a concatenation node.
- // Rebalances if the result is too deep.
- // Result has refcount 1.
- // Does not increment left and right ref counts even though
- // they are referenced.
- static _RopeRep*
- _S_tree_concat(_RopeRep* __left, _RopeRep* __right);
-
- // Concatenation helper functions
- static _RopeLeaf*
- _S_leaf_concat_char_iter(_RopeLeaf* __r,
- const _CharT* __iter, size_t __slen);
- // Concatenate by copying leaf.
- // should take an arbitrary iterator
- // result has refcount 1.
-# ifndef __GC
- static _RopeLeaf* _S_destr_leaf_concat_char_iter
- (_RopeLeaf* __r, const _CharT* __iter, size_t __slen);
- // A version that potentially clobbers __r if __r->_M_ref_count == 1.
-# endif
-
- private:
-
- static size_t _S_char_ptr_len(const _CharT* __s);
- // slightly generalized strlen
-
- rope(_RopeRep* __t, const allocator_type& __a = allocator_type())
- : _Base(__t,__a) { }
-
-
- // Copy __r to the _CharT buffer.
- // Returns __buffer + __r->_M_size.
- // Assumes that buffer is uninitialized.
- static _CharT* _S_flatten(_RopeRep* __r, _CharT* __buffer);
-
- // Again, with explicit starting position and length.
- // Assumes that buffer is uninitialized.
- static _CharT* _S_flatten(_RopeRep* __r,
- size_t __start, size_t __len,
- _CharT* __buffer);
-
- static const unsigned long
- _S_min_len[_RopeRep::_S_max_rope_depth + 1];
-
- static bool _S_is_balanced(_RopeRep* __r)
- { return (__r->_M_size >= _S_min_len[__r->_M_depth]); }
-
- static bool _S_is_almost_balanced(_RopeRep* __r)
- { return (__r->_M_depth == 0 ||
- __r->_M_size >= _S_min_len[__r->_M_depth - 1]); }
-
- static bool _S_is_roughly_balanced(_RopeRep* __r)
- { return (__r->_M_depth <= 1 ||
- __r->_M_size >= _S_min_len[__r->_M_depth - 2]); }
-
- // Assumes the result is not empty.
- static _RopeRep* _S_concat_and_set_balanced(_RopeRep* __left,
- _RopeRep* __right)
- {
- _RopeRep* __result = _S_concat(__left, __right);
- if (_S_is_balanced(__result)) __result->_M_is_balanced = true;
- return __result;
- }
-
- // The basic rebalancing operation. Logically copies the
- // rope. The result has refcount of 1. The client will
- // usually decrement the reference count of __r.
- // The result is within height 2 of balanced by the above
- // definition.
- static _RopeRep* _S_balance(_RopeRep* __r);
-
- // Add all unbalanced subtrees to the forest of balanceed trees.
- // Used only by balance.
- static void _S_add_to_forest(_RopeRep*__r, _RopeRep** __forest);
-
- // Add __r to forest, assuming __r is already balanced.
- static void _S_add_leaf_to_forest(_RopeRep* __r, _RopeRep** __forest);
-
- // Print to stdout, exposing structure
- static void _S_dump(_RopeRep* __r, int __indent = 0);
-
- // Return -1, 0, or 1 if __x < __y, __x == __y, or __x > __y resp.
- static int _S_compare(const _RopeRep* __x, const _RopeRep* __y);
-
- public:
- bool empty() const { return 0 == this->_M_tree_ptr; }
-
- // Comparison member function. This is public only for those
- // clients that need a ternary comparison. Others
- // should use the comparison operators below.
- int compare(const rope& __y) const {
- return _S_compare(this->_M_tree_ptr, __y._M_tree_ptr);
- }
-
- rope(const _CharT* __s, const allocator_type& __a = allocator_type())
- : _Base(__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, _S_char_ptr_len(__s),
- __a),__a)
- { }
-
- rope(const _CharT* __s, size_t __len,
- const allocator_type& __a = allocator_type())
- : _Base(__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __len, __a), __a)
- { }
-
- // Should perhaps be templatized with respect to the iterator type
- // and use Sequence_buffer. (It should perhaps use sequence_buffer
- // even now.)
- rope(const _CharT *__s, const _CharT *__e,
- const allocator_type& __a = allocator_type())
- : _Base(__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __e - __s, __a), __a)
- { }
-
- rope(const const_iterator& __s, const const_iterator& __e,
- const allocator_type& __a = allocator_type())
- : _Base(_S_substring(__s._M_root, __s._M_current_pos,
- __e._M_current_pos), __a)
- { }
-
- rope(const iterator& __s, const iterator& __e,
- const allocator_type& __a = allocator_type())
- : _Base(_S_substring(__s._M_root, __s._M_current_pos,
- __e._M_current_pos), __a)
- { }
-
- rope(_CharT __c, const allocator_type& __a = allocator_type())
- : _Base(__a)
- {
- _CharT* __buf = _Data_allocate(_S_rounded_up_size(1));
-
- std::_Construct(__buf, __c);
- try {
- this->_M_tree_ptr = _S_new_RopeLeaf(__buf, 1, __a);
- }
- catch(...)
- {
- _RopeRep::__STL_FREE_STRING(__buf, 1, __a);
- __throw_exception_again;
- }
- }
-
- rope(size_t __n, _CharT __c,
- const allocator_type& __a = allocator_type());
-
- rope(const allocator_type& __a = allocator_type())
- : _Base(0, __a) {}
-
- // Construct a rope from a function that can compute its members
- rope(char_producer<_CharT> *__fn, size_t __len, bool __delete_fn,
- const allocator_type& __a = allocator_type())
- : _Base(__a)
- {
- this->_M_tree_ptr = (0 == __len) ?
- 0 : _S_new_RopeFunction(__fn, __len, __delete_fn, __a);
- }
-
- rope(const rope& __x, const allocator_type& __a = allocator_type())
- : _Base(__x._M_tree_ptr, __a)
- {
- _S_ref(this->_M_tree_ptr);
- }
-
- ~rope()
- {
- _S_unref(this->_M_tree_ptr);
- }
-
- rope& operator=(const rope& __x)
- {
- _RopeRep* __old = this->_M_tree_ptr;
- this->_M_tree_ptr = __x._M_tree_ptr;
- _S_ref(this->_M_tree_ptr);
- _S_unref(__old);
- return(*this);
- }
-
- void clear()
- {
- _S_unref(this->_M_tree_ptr);
- this->_M_tree_ptr = 0;
- }
-
- void push_back(_CharT __x)
- {
- _RopeRep* __old = this->_M_tree_ptr;
- this->_M_tree_ptr
- = _S_destr_concat_char_iter(this->_M_tree_ptr, &__x, 1);
- _S_unref(__old);
- }
-
- void pop_back()
- {
- _RopeRep* __old = this->_M_tree_ptr;
- this->_M_tree_ptr =
- _S_substring(this->_M_tree_ptr,
- 0,
- this->_M_tree_ptr->_M_size - 1);
- _S_unref(__old);
- }
-
- _CharT back() const
- {
- return _S_fetch(this->_M_tree_ptr, this->_M_tree_ptr->_M_size - 1);
- }
-
- void push_front(_CharT __x)
- {
- _RopeRep* __old = this->_M_tree_ptr;
- _RopeRep* __left =
- __STL_ROPE_FROM_UNOWNED_CHAR_PTR(&__x, 1, get_allocator());
- try {
- this->_M_tree_ptr = _S_concat(__left, this->_M_tree_ptr);
- _S_unref(__old);
- _S_unref(__left);
- }
- catch(...)
- {
- _S_unref(__left);
- __throw_exception_again;
- }
- }
-
- void pop_front()
- {
- _RopeRep* __old = this->_M_tree_ptr;
- this->_M_tree_ptr
- = _S_substring(this->_M_tree_ptr, 1, this->_M_tree_ptr->_M_size);
- _S_unref(__old);
- }
-
- _CharT front() const
- {
- return _S_fetch(this->_M_tree_ptr, 0);
- }
-
- void balance()
- {
- _RopeRep* __old = this->_M_tree_ptr;
- this->_M_tree_ptr = _S_balance(this->_M_tree_ptr);
- _S_unref(__old);
- }
-
- void copy(_CharT* __buffer) const {
- _Destroy(__buffer, __buffer + size());
- _S_flatten(this->_M_tree_ptr, __buffer);
- }
-
- // This is the copy function from the standard, but
- // with the arguments reordered to make it consistent with the
- // rest of the interface.
- // Note that this guaranteed not to compile if the draft standard
- // order is assumed.
- size_type copy(size_type __pos, size_type __n, _CharT* __buffer) const
- {
- size_t __size = size();
- size_t __len = (__pos + __n > __size? __size - __pos : __n);
-
- _Destroy(__buffer, __buffer + __len);
- _S_flatten(this->_M_tree_ptr, __pos, __len, __buffer);
- return __len;
- }
-
- // Print to stdout, exposing structure. May be useful for
- // performance debugging.
- void dump() {
- _S_dump(this->_M_tree_ptr);
- }
-
- // Convert to 0 terminated string in new allocated memory.
- // Embedded 0s in the input do not terminate the copy.
- const _CharT* c_str() const;
-
- // As above, but lso use the flattened representation as the
- // the new rope representation.
- const _CharT* replace_with_c_str();
-
- // Reclaim memory for the c_str generated flattened string.
- // Intentionally undocumented, since it's hard to say when this
- // is safe for multiple threads.
- void delete_c_str () {
- if (0 == this->_M_tree_ptr) return;
- if (_RopeRep::_S_leaf == this->_M_tree_ptr->_M_tag &&
- ((_RopeLeaf*)this->_M_tree_ptr)->_M_data ==
- this->_M_tree_ptr->_M_c_string) {
- // Representation shared
- return;
- }
-# ifndef __GC
- this->_M_tree_ptr->_M_free_c_string();
-# endif
- this->_M_tree_ptr->_M_c_string = 0;
- }
-
- _CharT operator[] (size_type __pos) const {
- return _S_fetch(this->_M_tree_ptr, __pos);
- }
-
- _CharT at(size_type __pos) const {
- // if (__pos >= size()) throw out_of_range; // XXX
- return (*this)[__pos];
- }
-
- const_iterator begin() const {
- return(const_iterator(this->_M_tree_ptr, 0));
- }
-
- // An easy way to get a const iterator from a non-const container.
- const_iterator const_begin() const {
- return(const_iterator(this->_M_tree_ptr, 0));
- }
-
- const_iterator end() const {
- return(const_iterator(this->_M_tree_ptr, size()));
- }
-
- const_iterator const_end() const {
- return(const_iterator(this->_M_tree_ptr, size()));
- }
-
- size_type size() const {
- return(0 == this->_M_tree_ptr? 0 : this->_M_tree_ptr->_M_size);
- }
-
- size_type length() const {
- return size();
- }
-
- size_type max_size() const {
- return _S_min_len[_RopeRep::_S_max_rope_depth-1] - 1;
- // Guarantees that the result can be sufficirntly
- // balanced. Longer ropes will probably still work,
- // but it's harder to make guarantees.
- }
-
- typedef reverse_iterator<const_iterator> const_reverse_iterator;
-
- const_reverse_iterator rbegin() const {
- return const_reverse_iterator(end());
- }
-
- const_reverse_iterator const_rbegin() const {
- return const_reverse_iterator(end());
- }
-
- const_reverse_iterator rend() const {
- return const_reverse_iterator(begin());
- }
-
- const_reverse_iterator const_rend() const {
- return const_reverse_iterator(begin());
- }
-
- template<class _CharT2, class _Alloc2>
- friend rope<_CharT2,_Alloc2>
- operator+ (const rope<_CharT2,_Alloc2>& __left,
- const rope<_CharT2,_Alloc2>& __right);
-
- template<class _CharT2, class _Alloc2>
- friend rope<_CharT2,_Alloc2>
- operator+ (const rope<_CharT2,_Alloc2>& __left,
- const _CharT2* __right);
-
- template<class _CharT2, class _Alloc2>
- friend rope<_CharT2,_Alloc2>
- operator+ (const rope<_CharT2,_Alloc2>& __left, _CharT2 __right);
- // The symmetric cases are intentionally omitted, since they're presumed
- // to be less common, and we don't handle them as well.
-
- // The following should really be templatized.
- // The first argument should be an input iterator or
- // forward iterator with value_type _CharT.
- rope& append(const _CharT* __iter, size_t __n) {
- _RopeRep* __result =
- _S_destr_concat_char_iter(this->_M_tree_ptr, __iter, __n);
- _S_unref(this->_M_tree_ptr);
- this->_M_tree_ptr = __result;
- return *this;
- }
-
- rope& append(const _CharT* __c_string) {
- size_t __len = _S_char_ptr_len(__c_string);
- append(__c_string, __len);
- return(*this);
- }
-
- rope& append(const _CharT* __s, const _CharT* __e) {
- _RopeRep* __result =
- _S_destr_concat_char_iter(this->_M_tree_ptr, __s, __e - __s);
- _S_unref(this->_M_tree_ptr);
- this->_M_tree_ptr = __result;
- return *this;
- }
-
- rope& append(const_iterator __s, const_iterator __e) {
- _Self_destruct_ptr __appendee(_S_substring(
- __s._M_root, __s._M_current_pos, __e._M_current_pos));
- _RopeRep* __result =
- _S_concat(this->_M_tree_ptr, (_RopeRep*)__appendee);
- _S_unref(this->_M_tree_ptr);
- this->_M_tree_ptr = __result;
- return *this;
- }
-
- rope& append(_CharT __c) {
- _RopeRep* __result =
- _S_destr_concat_char_iter(this->_M_tree_ptr, &__c, 1);
- _S_unref(this->_M_tree_ptr);
- this->_M_tree_ptr = __result;
- return *this;
- }
-
- rope& append() { return append(_CharT()); } // XXX why?
-
- rope& append(const rope& __y) {
- _RopeRep* __result = _S_concat(this->_M_tree_ptr, __y._M_tree_ptr);
- _S_unref(this->_M_tree_ptr);
- this->_M_tree_ptr = __result;
- return *this;
- }
-
- rope& append(size_t __n, _CharT __c) {
- rope<_CharT,_Alloc> __last(__n, __c);
- return append(__last);
- }
-
- void swap(rope& __b) {
- _RopeRep* __tmp = this->_M_tree_ptr;
- this->_M_tree_ptr = __b._M_tree_ptr;
- __b._M_tree_ptr = __tmp;
- }
-
-
- protected:
- // Result is included in refcount.
- static _RopeRep* replace(_RopeRep* __old, size_t __pos1,
- size_t __pos2, _RopeRep* __r) {
- if (0 == __old) { _S_ref(__r); return __r; }
- _Self_destruct_ptr __left(
- _S_substring(__old, 0, __pos1));
- _Self_destruct_ptr __right(
- _S_substring(__old, __pos2, __old->_M_size));
- _RopeRep* __result;
-
- if (0 == __r) {
- __result = _S_concat(__left, __right);
- } else {
- _Self_destruct_ptr __left_result(_S_concat(__left, __r));
- __result = _S_concat(__left_result, __right);
- }
- return __result;
- }
-
- public:
- void insert(size_t __p, const rope& __r) {
- _RopeRep* __result =
- replace(this->_M_tree_ptr, __p, __p, __r._M_tree_ptr);
- _S_unref(this->_M_tree_ptr);
- this->_M_tree_ptr = __result;
- }
-
- void insert(size_t __p, size_t __n, _CharT __c) {
- rope<_CharT,_Alloc> __r(__n,__c);
- insert(__p, __r);
- }
-
- void insert(size_t __p, const _CharT* __i, size_t __n) {
- _Self_destruct_ptr __left(_S_substring(this->_M_tree_ptr, 0, __p));
- _Self_destruct_ptr __right(_S_substring(this->_M_tree_ptr,
- __p, size()));
- _Self_destruct_ptr __left_result(
- _S_concat_char_iter(__left, __i, __n));
- // _S_ destr_concat_char_iter should be safe here.
- // But as it stands it's probably not a win, since __left
- // is likely to have additional references.
- _RopeRep* __result = _S_concat(__left_result, __right);
- _S_unref(this->_M_tree_ptr);
- this->_M_tree_ptr = __result;
- }
-
- void insert(size_t __p, const _CharT* __c_string) {
- insert(__p, __c_string, _S_char_ptr_len(__c_string));
- }
-
- void insert(size_t __p, _CharT __c) {
- insert(__p, &__c, 1);
- }
-
- void insert(size_t __p) {
- _CharT __c = _CharT();
- insert(__p, &__c, 1);
- }
-
- void insert(size_t __p, const _CharT* __i, const _CharT* __j) {
- rope __r(__i, __j);
- insert(__p, __r);
- }
-
- void insert(size_t __p, const const_iterator& __i,
- const const_iterator& __j) {
- rope __r(__i, __j);
- insert(__p, __r);
- }
-
- void insert(size_t __p, const iterator& __i,
- const iterator& __j) {
- rope __r(__i, __j);
- insert(__p, __r);
- }
-
- // (position, length) versions of replace operations:
-
- void replace(size_t __p, size_t __n, const rope& __r) {
- _RopeRep* __result =
- replace(this->_M_tree_ptr, __p, __p + __n, __r._M_tree_ptr);
- _S_unref(this->_M_tree_ptr);
- this->_M_tree_ptr = __result;
- }
-
- void replace(size_t __p, size_t __n,
- const _CharT* __i, size_t __i_len) {
- rope __r(__i, __i_len);
- replace(__p, __n, __r);
- }
-
- void replace(size_t __p, size_t __n, _CharT __c) {
- rope __r(__c);
- replace(__p, __n, __r);
- }
-
- void replace(size_t __p, size_t __n, const _CharT* __c_string) {
- rope __r(__c_string);
- replace(__p, __n, __r);
- }
-
- void replace(size_t __p, size_t __n,
- const _CharT* __i, const _CharT* __j) {
- rope __r(__i, __j);
- replace(__p, __n, __r);
- }
-
- void replace(size_t __p, size_t __n,
- const const_iterator& __i, const const_iterator& __j) {
- rope __r(__i, __j);
- replace(__p, __n, __r);
- }
-
- void replace(size_t __p, size_t __n,
- const iterator& __i, const iterator& __j) {
- rope __r(__i, __j);
- replace(__p, __n, __r);
- }
-
- // Single character variants:
- void replace(size_t __p, _CharT __c) {
- iterator __i(this, __p);
- *__i = __c;
- }
-
- void replace(size_t __p, const rope& __r) {
- replace(__p, 1, __r);
- }
-
- void replace(size_t __p, const _CharT* __i, size_t __i_len) {
- replace(__p, 1, __i, __i_len);
- }
-
- void replace(size_t __p, const _CharT* __c_string) {
- replace(__p, 1, __c_string);
- }
-
- void replace(size_t __p, const _CharT* __i, const _CharT* __j) {
- replace(__p, 1, __i, __j);
- }
-
- void replace(size_t __p, const const_iterator& __i,
- const const_iterator& __j) {
- replace(__p, 1, __i, __j);
- }
-
- void replace(size_t __p, const iterator& __i,
- const iterator& __j) {
- replace(__p, 1, __i, __j);
- }
-
- // Erase, (position, size) variant.
- void erase(size_t __p, size_t __n) {
- _RopeRep* __result = replace(this->_M_tree_ptr, __p, __p + __n, 0);
- _S_unref(this->_M_tree_ptr);
- this->_M_tree_ptr = __result;
- }
-
- // Erase, single character
- void erase(size_t __p) {
- erase(__p, __p + 1);
- }
-
- // Insert, iterator variants.
- iterator insert(const iterator& __p, const rope& __r)
- { insert(__p.index(), __r); return __p; }
- iterator insert(const iterator& __p, size_t __n, _CharT __c)
- { insert(__p.index(), __n, __c); return __p; }
- iterator insert(const iterator& __p, _CharT __c)
- { insert(__p.index(), __c); return __p; }
- iterator insert(const iterator& __p )
- { insert(__p.index()); return __p; }
- iterator insert(const iterator& __p, const _CharT* c_string)
- { insert(__p.index(), c_string); return __p; }
- iterator insert(const iterator& __p, const _CharT* __i, size_t __n)
- { insert(__p.index(), __i, __n); return __p; }
- iterator insert(const iterator& __p, const _CharT* __i,
- const _CharT* __j)
- { insert(__p.index(), __i, __j); return __p; }
- iterator insert(const iterator& __p,
- const const_iterator& __i, const const_iterator& __j)
- { insert(__p.index(), __i, __j); return __p; }
- iterator insert(const iterator& __p,
- const iterator& __i, const iterator& __j)
- { insert(__p.index(), __i, __j); return __p; }
-
- // Replace, range variants.
- void replace(const iterator& __p, const iterator& __q,
- const rope& __r)
- { replace(__p.index(), __q.index() - __p.index(), __r); }
- void replace(const iterator& __p, const iterator& __q, _CharT __c)
- { replace(__p.index(), __q.index() - __p.index(), __c); }
- void replace(const iterator& __p, const iterator& __q,
- const _CharT* __c_string)
- { replace(__p.index(), __q.index() - __p.index(), __c_string); }
- void replace(const iterator& __p, const iterator& __q,
- const _CharT* __i, size_t __n)
- { replace(__p.index(), __q.index() - __p.index(), __i, __n); }
- void replace(const iterator& __p, const iterator& __q,
- const _CharT* __i, const _CharT* __j)
- { replace(__p.index(), __q.index() - __p.index(), __i, __j); }
- void replace(const iterator& __p, const iterator& __q,
- const const_iterator& __i, const const_iterator& __j)
- { replace(__p.index(), __q.index() - __p.index(), __i, __j); }
- void replace(const iterator& __p, const iterator& __q,
- const iterator& __i, const iterator& __j)
- { replace(__p.index(), __q.index() - __p.index(), __i, __j); }
-
- // Replace, iterator variants.
- void replace(const iterator& __p, const rope& __r)
- { replace(__p.index(), __r); }
- void replace(const iterator& __p, _CharT __c)
- { replace(__p.index(), __c); }
- void replace(const iterator& __p, const _CharT* __c_string)
- { replace(__p.index(), __c_string); }
- void replace(const iterator& __p, const _CharT* __i, size_t __n)
- { replace(__p.index(), __i, __n); }
- void replace(const iterator& __p, const _CharT* __i, const _CharT* __j)
- { replace(__p.index(), __i, __j); }
- void replace(const iterator& __p, const_iterator __i,
- const_iterator __j)
- { replace(__p.index(), __i, __j); }
- void replace(const iterator& __p, iterator __i, iterator __j)
- { replace(__p.index(), __i, __j); }
-
- // Iterator and range variants of erase
- iterator erase(const iterator& __p, const iterator& __q) {
- size_t __p_index = __p.index();
- erase(__p_index, __q.index() - __p_index);
- return iterator(this, __p_index);
- }
- iterator erase(const iterator& __p) {
- size_t __p_index = __p.index();
- erase(__p_index, 1);
- return iterator(this, __p_index);
- }
-
- rope substr(size_t __start, size_t __len = 1) const {
- return rope<_CharT,_Alloc>(
- _S_substring(this->_M_tree_ptr,
- __start,
- __start + __len));
- }
-
- rope substr(iterator __start, iterator __end) const {
- return rope<_CharT,_Alloc>(
- _S_substring(this->_M_tree_ptr,
- __start.index(),
- __end.index()));
- }
-
- rope substr(iterator __start) const {
- size_t __pos = __start.index();
- return rope<_CharT,_Alloc>(
- _S_substring(this->_M_tree_ptr, __pos, __pos + 1));
- }
-
- rope substr(const_iterator __start, const_iterator __end) const {
- // This might eventually take advantage of the cache in the
- // iterator.
- return rope<_CharT,_Alloc>(
- _S_substring(this->_M_tree_ptr, __start.index(), __end.index()));
- }
-
- rope<_CharT,_Alloc> substr(const_iterator __start) {
- size_t __pos = __start.index();
- return rope<_CharT,_Alloc>(
- _S_substring(this->_M_tree_ptr, __pos, __pos + 1));
- }
-
- static const size_type npos;
-
- size_type find(_CharT __c, size_type __pos = 0) const;
- size_type find(const _CharT* __s, size_type __pos = 0) const {
- size_type __result_pos;
- const_iterator __result =
- std::search(const_begin() + __pos, const_end(),
- __s, __s + _S_char_ptr_len(__s));
- __result_pos = __result.index();
-# ifndef __STL_OLD_ROPE_SEMANTICS
- if (__result_pos == size()) __result_pos = npos;
-# endif
- return __result_pos;
- }
-
- iterator mutable_begin() {
- return(iterator(this, 0));
- }
-
- iterator mutable_end() {
- return(iterator(this, size()));
- }
-
- typedef reverse_iterator<iterator> reverse_iterator;
-
- reverse_iterator mutable_rbegin() {
- return reverse_iterator(mutable_end());
- }
-
- reverse_iterator mutable_rend() {
- return reverse_iterator(mutable_begin());
- }
-
- reference mutable_reference_at(size_type __pos) {
- return reference(this, __pos);
- }
-
-# ifdef __STD_STUFF
- reference operator[] (size_type __pos) {
- return _char_ref_proxy(this, __pos);
- }
-
- reference at(size_type __pos) {
- // if (__pos >= size()) throw out_of_range; // XXX
- return (*this)[__pos];
- }
-
- void resize(size_type __n, _CharT __c) {}
- void resize(size_type __n) {}
- void reserve(size_type __res_arg = 0) {}
- size_type capacity() const {
- return max_size();
- }
-
- // Stuff below this line is dangerous because it's error prone.
- // I would really like to get rid of it.
- // copy function with funny arg ordering.
- size_type copy(_CharT* __buffer, size_type __n,
- size_type __pos = 0) const {
- return copy(__pos, __n, __buffer);
- }
-
- iterator end() { return mutable_end(); }
-
- iterator begin() { return mutable_begin(); }
-
- reverse_iterator rend() { return mutable_rend(); }
-
- reverse_iterator rbegin() { return mutable_rbegin(); }
-
-# else
-
- const_iterator end() { return const_end(); }
-
- const_iterator begin() { return const_begin(); }
-
- const_reverse_iterator rend() { return const_rend(); }
-
- const_reverse_iterator rbegin() { return const_rbegin(); }
-
-# endif
-
-};
-
-template <class _CharT, class _Alloc>
-const typename rope<_CharT, _Alloc>::size_type rope<_CharT, _Alloc>::npos =
- (size_type)(-1);
-
-template <class _CharT, class _Alloc>
-inline bool operator== (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- const _Rope_const_iterator<_CharT,_Alloc>& __y) {
- return (__x._M_current_pos == __y._M_current_pos &&
- __x._M_root == __y._M_root);
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator< (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- const _Rope_const_iterator<_CharT,_Alloc>& __y) {
- return (__x._M_current_pos < __y._M_current_pos);
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator!= (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- const _Rope_const_iterator<_CharT,_Alloc>& __y) {
- return !(__x == __y);
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator> (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- const _Rope_const_iterator<_CharT,_Alloc>& __y) {
- return __y < __x;
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator<= (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- const _Rope_const_iterator<_CharT,_Alloc>& __y) {
- return !(__y < __x);
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator>= (const _Rope_const_iterator<_CharT,_Alloc>& __x,
- const _Rope_const_iterator<_CharT,_Alloc>& __y) {
- return !(__x < __y);
-}
-
-template <class _CharT, class _Alloc>
-inline ptrdiff_t operator-(const _Rope_const_iterator<_CharT,_Alloc>& __x,
- const _Rope_const_iterator<_CharT,_Alloc>& __y) {
- return (ptrdiff_t)__x._M_current_pos - (ptrdiff_t)__y._M_current_pos;
-}
-
-template <class _CharT, class _Alloc>
-inline _Rope_const_iterator<_CharT,_Alloc>
-operator-(const _Rope_const_iterator<_CharT,_Alloc>& __x, ptrdiff_t __n) {
- return _Rope_const_iterator<_CharT,_Alloc>(
- __x._M_root, __x._M_current_pos - __n);
-}
-
-template <class _CharT, class _Alloc>
-inline _Rope_const_iterator<_CharT,_Alloc>
-operator+(const _Rope_const_iterator<_CharT,_Alloc>& __x, ptrdiff_t __n) {
- return _Rope_const_iterator<_CharT,_Alloc>(
- __x._M_root, __x._M_current_pos + __n);
-}
-
-template <class _CharT, class _Alloc>
-inline _Rope_const_iterator<_CharT,_Alloc>
-operator+(ptrdiff_t __n, const _Rope_const_iterator<_CharT,_Alloc>& __x) {
- return _Rope_const_iterator<_CharT,_Alloc>(
- __x._M_root, __x._M_current_pos + __n);
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator== (const _Rope_iterator<_CharT,_Alloc>& __x,
- const _Rope_iterator<_CharT,_Alloc>& __y) {
- return (__x._M_current_pos == __y._M_current_pos &&
- __x._M_root_rope == __y._M_root_rope);
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator< (const _Rope_iterator<_CharT,_Alloc>& __x,
- const _Rope_iterator<_CharT,_Alloc>& __y) {
- return (__x._M_current_pos < __y._M_current_pos);
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator!= (const _Rope_iterator<_CharT,_Alloc>& __x,
- const _Rope_iterator<_CharT,_Alloc>& __y) {
- return !(__x == __y);
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator> (const _Rope_iterator<_CharT,_Alloc>& __x,
- const _Rope_iterator<_CharT,_Alloc>& __y) {
- return __y < __x;
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator<= (const _Rope_iterator<_CharT,_Alloc>& __x,
- const _Rope_iterator<_CharT,_Alloc>& __y) {
- return !(__y < __x);
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator>= (const _Rope_iterator<_CharT,_Alloc>& __x,
- const _Rope_iterator<_CharT,_Alloc>& __y) {
- return !(__x < __y);
-}
-
-template <class _CharT, class _Alloc>
-inline ptrdiff_t operator-(const _Rope_iterator<_CharT,_Alloc>& __x,
- const _Rope_iterator<_CharT,_Alloc>& __y) {
- return (ptrdiff_t)__x._M_current_pos - (ptrdiff_t)__y._M_current_pos;
-}
-
-template <class _CharT, class _Alloc>
-inline _Rope_iterator<_CharT,_Alloc>
-operator-(const _Rope_iterator<_CharT,_Alloc>& __x,
- ptrdiff_t __n) {
- return _Rope_iterator<_CharT,_Alloc>(
- __x._M_root_rope, __x._M_current_pos - __n);
-}
-
-template <class _CharT, class _Alloc>
-inline _Rope_iterator<_CharT,_Alloc>
-operator+(const _Rope_iterator<_CharT,_Alloc>& __x,
- ptrdiff_t __n) {
- return _Rope_iterator<_CharT,_Alloc>(
- __x._M_root_rope, __x._M_current_pos + __n);
-}
-
-template <class _CharT, class _Alloc>
-inline _Rope_iterator<_CharT,_Alloc>
-operator+(ptrdiff_t __n, const _Rope_iterator<_CharT,_Alloc>& __x) {
- return _Rope_iterator<_CharT,_Alloc>(
- __x._M_root_rope, __x._M_current_pos + __n);
-}
-
-template <class _CharT, class _Alloc>
-inline
-rope<_CharT,_Alloc>
-operator+ (const rope<_CharT,_Alloc>& __left,
- const rope<_CharT,_Alloc>& __right)
-{
- return rope<_CharT,_Alloc>(
- rope<_CharT,_Alloc>::_S_concat(__left._M_tree_ptr, __right._M_tree_ptr));
- // Inlining this should make it possible to keep __left and
- // __right in registers.
-}
-
-template <class _CharT, class _Alloc>
-inline
-rope<_CharT,_Alloc>&
-operator+= (rope<_CharT,_Alloc>& __left,
- const rope<_CharT,_Alloc>& __right)
-{
- __left.append(__right);
- return __left;
-}
-
-template <class _CharT, class _Alloc>
-inline
-rope<_CharT,_Alloc>
-operator+ (const rope<_CharT,_Alloc>& __left,
- const _CharT* __right) {
- size_t __rlen = rope<_CharT,_Alloc>::_S_char_ptr_len(__right);
- return rope<_CharT,_Alloc>(
- rope<_CharT,_Alloc>::_S_concat_char_iter(
- __left._M_tree_ptr, __right, __rlen));
-}
-
-template <class _CharT, class _Alloc>
-inline
-rope<_CharT,_Alloc>&
-operator+= (rope<_CharT,_Alloc>& __left,
- const _CharT* __right) {
- __left.append(__right);
- return __left;
-}
-
-template <class _CharT, class _Alloc>
-inline
-rope<_CharT,_Alloc>
-operator+ (const rope<_CharT,_Alloc>& __left, _CharT __right) {
- return rope<_CharT,_Alloc>(
- rope<_CharT,_Alloc>::_S_concat_char_iter(
- __left._M_tree_ptr, &__right, 1));
-}
-
-template <class _CharT, class _Alloc>
-inline
-rope<_CharT,_Alloc>&
-operator+= (rope<_CharT,_Alloc>& __left, _CharT __right) {
- __left.append(__right);
- return __left;
-}
-
-template <class _CharT, class _Alloc>
-bool
-operator< (const rope<_CharT,_Alloc>& __left,
- const rope<_CharT,_Alloc>& __right) {
- return __left.compare(__right) < 0;
-}
-
-template <class _CharT, class _Alloc>
-bool
-operator== (const rope<_CharT,_Alloc>& __left,
- const rope<_CharT,_Alloc>& __right) {
- return __left.compare(__right) == 0;
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator== (const _Rope_char_ptr_proxy<_CharT,_Alloc>& __x,
- const _Rope_char_ptr_proxy<_CharT,_Alloc>& __y) {
- return (__x._M_pos == __y._M_pos && __x._M_root == __y._M_root);
-}
-
-template <class _CharT, class _Alloc>
-inline bool
-operator!= (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) {
- return !(__x == __y);
-}
-
-template <class _CharT, class _Alloc>
-inline bool
-operator> (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) {
- return __y < __x;
-}
-
-template <class _CharT, class _Alloc>
-inline bool
-operator<= (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) {
- return !(__y < __x);
-}
-
-template <class _CharT, class _Alloc>
-inline bool
-operator>= (const rope<_CharT,_Alloc>& __x, const rope<_CharT,_Alloc>& __y) {
- return !(__x < __y);
-}
-
-template <class _CharT, class _Alloc>
-inline bool operator!= (const _Rope_char_ptr_proxy<_CharT,_Alloc>& __x,
- const _Rope_char_ptr_proxy<_CharT,_Alloc>& __y) {
- return !(__x == __y);
-}
-
-template<class _CharT, class _Traits, class _Alloc>
-std::basic_ostream<_CharT, _Traits>& operator<<
- (std::basic_ostream<_CharT, _Traits>& __o,
- const rope<_CharT, _Alloc>& __r);
-
-typedef rope<char> crope;
-typedef rope<wchar_t> wrope;
-
-inline crope::reference __mutable_reference_at(crope& __c, size_t __i)
-{
- return __c.mutable_reference_at(__i);
-}
-
-inline wrope::reference __mutable_reference_at(wrope& __c, size_t __i)
-{
- return __c.mutable_reference_at(__i);
-}
-
-template <class _CharT, class _Alloc>
-inline void swap(rope<_CharT,_Alloc>& __x, rope<_CharT,_Alloc>& __y) {
- __x.swap(__y);
-}
-
-// Hash functions should probably be revisited later:
-template<> struct hash<crope>
-{
- size_t operator()(const crope& __str) const
- {
- size_t __size = __str.size();
-
- if (0 == __size) return 0;
- return 13*__str[0] + 5*__str[__size - 1] + __size;
- }
-};
-
-
-template<> struct hash<wrope>
-{
- size_t operator()(const wrope& __str) const
- {
- size_t __size = __str.size();
-
- if (0 == __size) return 0;
- return 13*__str[0] + 5*__str[__size - 1] + __size;
- }
-};
-
-} // namespace __gnu_cxx
-
-# include <ext/ropeimpl.h>
-
-# endif /* __SGI_STL_INTERNAL_ROPE_H */
-
-// Local Variables:
-// mode:C++
-// End:
projects / thirdparty / gcc.git / commitdiff
