// Components for manipulating sequences of characters -*- C++ -*-
-// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
-// Free Software Foundation, Inc.
+// Copyright (C) 1997-2014 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)
+// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// 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.
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
-// 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.
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/basic_string.tcc
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{string}
+ */
//
// ISO C++ 14882: 21 Strings library
//
-// This file is included by <string>. It is not meant to be included
-// separately.
-
// Written by Jason Merrill based upon the specification by Takanori Adachi
// in ANSI X3J16/94-0013R2. Rewritten by Nathan Myers to ISO-14882.
#pragma GCC system_header
-namespace std
-{
- template<typename _Type>
- inline bool
- __is_null_pointer(_Type* __ptr)
- { return __ptr == 0; }
+#include <bits/cxxabi_forced.h>
- template<typename _Type>
- inline bool
- __is_null_pointer(_Type)
- { return false; }
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename _CharT, typename _Traits, typename _Alloc>
const typename basic_string<_CharT, _Traits, _Alloc>::size_type
_S_construct(_InIterator __beg, _InIterator __end, const _Alloc& __a,
input_iterator_tag)
{
-#ifndef _GLIBCXX_FULLY_DYNAMIC_STRING
+#if _GLIBCXX_FULLY_DYNAMIC_STRING == 0
if (__beg == __end && __a == _Alloc())
return _S_empty_rep()._M_refdata();
#endif
}
_Rep* __r = _Rep::_S_create(__len, size_type(0), __a);
_M_copy(__r->_M_refdata(), __buf, __len);
- try
+ __try
{
while (__beg != __end)
{
++__beg;
}
}
- catch(...)
+ __catch(...)
{
__r->_M_destroy(__a);
__throw_exception_again;
_S_construct(_InIterator __beg, _InIterator __end, const _Alloc& __a,
forward_iterator_tag)
{
-#ifndef _GLIBCXX_FULLY_DYNAMIC_STRING
+#if _GLIBCXX_FULLY_DYNAMIC_STRING == 0
if (__beg == __end && __a == _Alloc())
return _S_empty_rep()._M_refdata();
#endif
// NB: Not required, but considered best practice.
- if (__builtin_expect(__is_null_pointer(__beg) && __beg != __end, 0))
- __throw_logic_error(__N("basic_string::_S_construct NULL not valid"));
+ if (__gnu_cxx::__is_null_pointer(__beg) && __beg != __end)
+ __throw_logic_error(__N("basic_string::_S_construct null not valid"));
const size_type __dnew = static_cast<size_type>(std::distance(__beg,
__end));
// Check for out_of_range and length_error exceptions.
_Rep* __r = _Rep::_S_create(__dnew, size_type(0), __a);
- try
+ __try
{ _S_copy_chars(__r->_M_refdata(), __beg, __end); }
- catch(...)
+ __catch(...)
{
__r->_M_destroy(__a);
__throw_exception_again;
basic_string<_CharT, _Traits, _Alloc>::
_S_construct(size_type __n, _CharT __c, const _Alloc& __a)
{
-#ifndef _GLIBCXX_FULLY_DYNAMIC_STRING
+#if _GLIBCXX_FULLY_DYNAMIC_STRING == 0
if (__n == 0 && __a == _Alloc())
return _S_empty_rep()._M_refdata();
#endif
: _M_dataplus(_S_construct(__beg, __end, __a), __a)
{ }
+#if __cplusplus >= 201103L
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ basic_string<_CharT, _Traits, _Alloc>::
+ basic_string(initializer_list<_CharT> __l, const _Alloc& __a)
+ : _M_dataplus(_S_construct(__l.begin(), __l.end(), __a), __a)
+ { }
+#endif
+
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ basic_string<_CharT, _Traits, _Alloc>&
+ basic_string<_CharT, _Traits, _Alloc>::
+ assign(const basic_string& __str)
+ {
+ if (_M_rep() != __str._M_rep())
+ {
+ // XXX MT
+ const allocator_type __a = this->get_allocator();
+ _CharT* __tmp = __str._M_rep()->_M_grab(__a, __str.get_allocator());
+ _M_rep()->_M_dispose(__a);
+ _M_data(__tmp);
+ }
+ return *this;
+ }
+
template<typename _CharT, typename _Traits, typename _Alloc>
basic_string<_CharT, _Traits, _Alloc>&
basic_string<_CharT, _Traits, _Alloc>::
{
__glibcxx_requires_string_len(__s, __n);
_M_check_length(this->size(), __n, "basic_string::assign");
- if (_M_rep()->_M_is_safe(_M_data(), __s) || _M_rep()->_M_is_shared())
+ if (_M_disjunct(__s) || _M_rep()->_M_is_shared())
return _M_replace_safe(size_type(0), this->size(), __s, __n);
else
{
}
}
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ basic_string<_CharT, _Traits, _Alloc>&
+ basic_string<_CharT, _Traits, _Alloc>::
+ append(size_type __n, _CharT __c)
+ {
+ if (__n)
+ {
+ _M_check_length(size_type(0), __n, "basic_string::append");
+ const size_type __len = __n + this->size();
+ if (__len > this->capacity() || _M_rep()->_M_is_shared())
+ this->reserve(__len);
+ _M_assign(_M_data() + this->size(), __n, __c);
+ _M_rep()->_M_set_length_and_sharable(__len);
+ }
+ return *this;
+ }
+
template<typename _CharT, typename _Traits, typename _Alloc>
basic_string<_CharT, _Traits, _Alloc>&
basic_string<_CharT, _Traits, _Alloc>::
const size_type __len = __n + this->size();
if (__len > this->capacity() || _M_rep()->_M_is_shared())
{
- if (_M_rep()->_M_is_safe(_M_data(), __s))
+ if (_M_disjunct(__s))
this->reserve(__len);
else
{
return *this;
}
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ basic_string<_CharT, _Traits, _Alloc>&
+ basic_string<_CharT, _Traits, _Alloc>::
+ append(const basic_string& __str)
+ {
+ const size_type __size = __str.size();
+ if (__size)
+ {
+ const size_type __len = __size + this->size();
+ if (__len > this->capacity() || _M_rep()->_M_is_shared())
+ this->reserve(__len);
+ _M_copy(_M_data() + this->size(), __str._M_data(), __size);
+ _M_rep()->_M_set_length_and_sharable(__len);
+ }
+ return *this;
+ }
+
template<typename _CharT, typename _Traits, typename _Alloc>
basic_string<_CharT, _Traits, _Alloc>&
basic_string<_CharT, _Traits, _Alloc>::
__glibcxx_requires_string_len(__s, __n);
_M_check(__pos, "basic_string::insert");
_M_check_length(size_type(0), __n, "basic_string::insert");
- if (_M_rep()->_M_is_safe(_M_data(), __s) || _M_rep()->_M_is_shared())
+ if (_M_disjunct(__s) || _M_rep()->_M_is_shared())
return _M_replace_safe(__pos, size_type(0), __s, __n);
else
{
}
}
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ typename basic_string<_CharT, _Traits, _Alloc>::iterator
+ basic_string<_CharT, _Traits, _Alloc>::
+ erase(iterator __first, iterator __last)
+ {
+ _GLIBCXX_DEBUG_PEDASSERT(__first >= _M_ibegin() && __first <= __last
+ && __last <= _M_iend());
+
+ // NB: This isn't just an optimization (bail out early when
+ // there is nothing to do, really), it's also a correctness
+ // issue vs MT, see libstdc++/40518.
+ const size_type __size = __last - __first;
+ if (__size)
+ {
+ const size_type __pos = __first - _M_ibegin();
+ _M_mutate(__pos, __size, size_type(0));
+ _M_rep()->_M_set_leaked();
+ return iterator(_M_data() + __pos);
+ }
+ else
+ return __first;
+ }
+
template<typename _CharT, typename _Traits, typename _Alloc>
basic_string<_CharT, _Traits, _Alloc>&
basic_string<_CharT, _Traits, _Alloc>::
__n1 = _M_limit(__pos, __n1);
_M_check_length(__n1, __n2, "basic_string::replace");
bool __left;
- if (_M_rep()->_M_is_safe(_M_data(), __s) || _M_rep()->_M_is_shared())
+ if (_M_disjunct(__s) || _M_rep()->_M_is_shared())
return _M_replace_safe(__pos, __n1, __s, __n2);
else if ((__left = __s + __n2 <= _M_data() + __pos)
|| _M_data() + __pos + __n1 <= __s)
basic_string<_CharT, _Traits, _Alloc>::_Rep::
_M_destroy(const _Alloc& __a) throw ()
{
-#ifndef _GLIBCXX_FULLY_DYNAMIC_STRING
- if (this == &_S_empty_rep())
- return;
-#endif
const size_type __size = sizeof(_Rep_base) +
(this->_M_capacity + 1) * sizeof(_CharT);
_Raw_bytes_alloc(__a).deallocate(reinterpret_cast<char*>(this), __size);
basic_string<_CharT, _Traits, _Alloc>::
_M_leak_hard()
{
-#ifndef _GLIBCXX_FULLY_DYNAMIC_STRING
+#if _GLIBCXX_FULLY_DYNAMIC_STRING == 0
if (_M_rep() == &_S_empty_rep())
return;
#endif
size_type __size = (__capacity + 1) * sizeof(_CharT) + sizeof(_Rep);
const size_type __adj_size = __size + __malloc_header_size;
- if (__adj_size > __pagesize)
+ if (__adj_size > __pagesize && __capacity > __old_capacity)
{
const size_type __extra = __pagesize - __adj_size % __pagesize;
__capacity += __extra / sizeof(_CharT);
void* __place = _Raw_bytes_alloc(__alloc).allocate(__size);
_Rep *__p = new (__place) _Rep;
__p->_M_capacity = __capacity;
+ // ABI compatibility - 3.4.x set in _S_create both
+ // _M_refcount and _M_length. All callers of _S_create
+ // in basic_string.tcc then set just _M_length.
+ // In 4.0.x and later both _M_refcount and _M_length
+ // are initialized in the callers, unfortunately we can
+ // have 3.4.x compiled code with _S_create callers inlined
+ // calling 4.0.x+ _S_create.
+ __p->_M_set_sharable();
return __p;
}
return _M_replace_safe(__i1 - _M_ibegin(), __n1, __s._M_data(),
__s.size());
}
-
+
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ basic_string<_CharT, _Traits, _Alloc>&
+ basic_string<_CharT, _Traits, _Alloc>::
+ _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2,
+ _CharT __c)
+ {
+ _M_check_length(__n1, __n2, "basic_string::_M_replace_aux");
+ _M_mutate(__pos1, __n1, __n2);
+ if (__n2)
+ _M_assign(_M_data() + __pos1, __n2, __c);
+ return *this;
+ }
+
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ basic_string<_CharT, _Traits, _Alloc>&
+ basic_string<_CharT, _Traits, _Alloc>::
+ _M_replace_safe(size_type __pos1, size_type __n1, const _CharT* __s,
+ size_type __n2)
+ {
+ _M_mutate(__pos1, __n1, __n2);
+ if (__n2)
+ _M_copy(_M_data() + __pos1, __s, __n2);
+ return *this;
+ }
+
template<typename _CharT, typename _Traits, typename _Alloc>
basic_string<_CharT, _Traits, _Alloc>
operator+(const _CharT* __lhs,
find(const _CharT* __s, size_type __pos, size_type __n) const
{
__glibcxx_requires_string_len(__s, __n);
- size_type __ret = npos;
const size_type __size = this->size();
- if (__pos + __n <= __size)
+ const _CharT* __data = _M_data();
+
+ if (__n == 0)
+ return __pos <= __size ? __pos : npos;
+
+ if (__n <= __size)
{
- const _CharT* __data = _M_data();
- const _CharT* __p = std::search(__data + __pos, __data + __size,
- __s, __s + __n, traits_type::eq);
- if (__p != __data + __size || __n == 0)
- __ret = __p - __data;
+ for (; __pos <= __size - __n; ++__pos)
+ if (traits_type::eq(__data[__pos], __s[0])
+ && traits_type::compare(__data + __pos + 1,
+ __s + 1, __n - 1) == 0)
+ return __pos;
}
- return __ret;
+ return npos;
}
template<typename _CharT, typename _Traits, typename _Alloc>
typename basic_string<_CharT, _Traits, _Alloc>::size_type
basic_string<_CharT, _Traits, _Alloc>::
- find(_CharT __c, size_type __pos) const
+ find(_CharT __c, size_type __pos) const _GLIBCXX_NOEXCEPT
{
size_type __ret = npos;
const size_type __size = this->size();
template<typename _CharT, typename _Traits, typename _Alloc>
typename basic_string<_CharT, _Traits, _Alloc>::size_type
basic_string<_CharT, _Traits, _Alloc>::
- rfind(_CharT __c, size_type __pos) const
+ rfind(_CharT __c, size_type __pos) const _GLIBCXX_NOEXCEPT
{
size_type __size = this->size();
if (__size)
template<typename _CharT, typename _Traits, typename _Alloc>
typename basic_string<_CharT, _Traits, _Alloc>::size_type
basic_string<_CharT, _Traits, _Alloc>::
- find_first_not_of(_CharT __c, size_type __pos) const
+ find_first_not_of(_CharT __c, size_type __pos) const _GLIBCXX_NOEXCEPT
{
for (; __pos < this->size(); ++__pos)
if (!traits_type::eq(_M_data()[__pos], __c))
template<typename _CharT, typename _Traits, typename _Alloc>
typename basic_string<_CharT, _Traits, _Alloc>::size_type
basic_string<_CharT, _Traits, _Alloc>::
- find_last_not_of(_CharT __c, size_type __pos) const
+ find_last_not_of(_CharT __c, size_type __pos) const _GLIBCXX_NOEXCEPT
{
size_type __size = this->size();
if (__size)
const size_type __len = std::min(__n, __osize);
int __r = traits_type::compare(_M_data() + __pos, __str.data(), __len);
if (!__r)
- __r = __n - __osize;
+ __r = _S_compare(__n, __osize);
return __r;
}
int __r = traits_type::compare(_M_data() + __pos1,
__str.data() + __pos2, __len);
if (!__r)
- __r = __n1 - __n2;
+ __r = _S_compare(__n1, __n2);
return __r;
}
const size_type __len = std::min(__size, __osize);
int __r = traits_type::compare(_M_data(), __s, __len);
if (!__r)
- __r = __size - __osize;
+ __r = _S_compare(__size, __osize);
return __r;
}
const size_type __len = std::min(__n1, __osize);
int __r = traits_type::compare(_M_data() + __pos, __s, __len);
if (!__r)
- __r = __n1 - __osize;
+ __r = _S_compare(__n1, __osize);
return __r;
}
const size_type __len = std::min(__n1, __n2);
int __r = traits_type::compare(_M_data() + __pos, __s, __len);
if (!__r)
- __r = __n1 - __n2;
+ __r = _S_compare(__n1, __n2);
return __r;
}
+ // 21.3.7.9 basic_string::getline and operators
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ basic_istream<_CharT, _Traits>&
+ operator>>(basic_istream<_CharT, _Traits>& __in,
+ basic_string<_CharT, _Traits, _Alloc>& __str)
+ {
+ typedef basic_istream<_CharT, _Traits> __istream_type;
+ typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
+ typedef typename __istream_type::ios_base __ios_base;
+ typedef typename __istream_type::int_type __int_type;
+ typedef typename __string_type::size_type __size_type;
+ typedef ctype<_CharT> __ctype_type;
+ typedef typename __ctype_type::ctype_base __ctype_base;
+
+ __size_type __extracted = 0;
+ typename __ios_base::iostate __err = __ios_base::goodbit;
+ typename __istream_type::sentry __cerb(__in, false);
+ if (__cerb)
+ {
+ __try
+ {
+ // Avoid reallocation for common case.
+ __str.erase();
+ _CharT __buf[128];
+ __size_type __len = 0;
+ const streamsize __w = __in.width();
+ const __size_type __n = __w > 0 ? static_cast<__size_type>(__w)
+ : __str.max_size();
+ const __ctype_type& __ct = use_facet<__ctype_type>(__in.getloc());
+ const __int_type __eof = _Traits::eof();
+ __int_type __c = __in.rdbuf()->sgetc();
+
+ while (__extracted < __n
+ && !_Traits::eq_int_type(__c, __eof)
+ && !__ct.is(__ctype_base::space,
+ _Traits::to_char_type(__c)))
+ {
+ if (__len == sizeof(__buf) / sizeof(_CharT))
+ {
+ __str.append(__buf, sizeof(__buf) / sizeof(_CharT));
+ __len = 0;
+ }
+ __buf[__len++] = _Traits::to_char_type(__c);
+ ++__extracted;
+ __c = __in.rdbuf()->snextc();
+ }
+ __str.append(__buf, __len);
+
+ if (_Traits::eq_int_type(__c, __eof))
+ __err |= __ios_base::eofbit;
+ __in.width(0);
+ }
+ __catch(__cxxabiv1::__forced_unwind&)
+ {
+ __in._M_setstate(__ios_base::badbit);
+ __throw_exception_again;
+ }
+ __catch(...)
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 91. Description of operator>> and getline() for string<>
+ // might cause endless loop
+ __in._M_setstate(__ios_base::badbit);
+ }
+ }
+ // 211. operator>>(istream&, string&) doesn't set failbit
+ if (!__extracted)
+ __err |= __ios_base::failbit;
+ if (__err)
+ __in.setstate(__err);
+ return __in;
+ }
+
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ basic_istream<_CharT, _Traits>&
+ getline(basic_istream<_CharT, _Traits>& __in,
+ basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim)
+ {
+ typedef basic_istream<_CharT, _Traits> __istream_type;
+ typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
+ typedef typename __istream_type::ios_base __ios_base;
+ typedef typename __istream_type::int_type __int_type;
+ typedef typename __string_type::size_type __size_type;
+
+ __size_type __extracted = 0;
+ const __size_type __n = __str.max_size();
+ typename __ios_base::iostate __err = __ios_base::goodbit;
+ typename __istream_type::sentry __cerb(__in, true);
+ if (__cerb)
+ {
+ __try
+ {
+ __str.erase();
+ const __int_type __idelim = _Traits::to_int_type(__delim);
+ const __int_type __eof = _Traits::eof();
+ __int_type __c = __in.rdbuf()->sgetc();
+
+ while (__extracted < __n
+ && !_Traits::eq_int_type(__c, __eof)
+ && !_Traits::eq_int_type(__c, __idelim))
+ {
+ __str += _Traits::to_char_type(__c);
+ ++__extracted;
+ __c = __in.rdbuf()->snextc();
+ }
+
+ if (_Traits::eq_int_type(__c, __eof))
+ __err |= __ios_base::eofbit;
+ else if (_Traits::eq_int_type(__c, __idelim))
+ {
+ ++__extracted;
+ __in.rdbuf()->sbumpc();
+ }
+ else
+ __err |= __ios_base::failbit;
+ }
+ __catch(__cxxabiv1::__forced_unwind&)
+ {
+ __in._M_setstate(__ios_base::badbit);
+ __throw_exception_again;
+ }
+ __catch(...)
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 91. Description of operator>> and getline() for string<>
+ // might cause endless loop
+ __in._M_setstate(__ios_base::badbit);
+ }
+ }
+ if (!__extracted)
+ __err |= __ios_base::failbit;
+ if (__err)
+ __in.setstate(__err);
+ return __in;
+ }
+
// Inhibit implicit instantiations for required instantiations,
// which are defined via explicit instantiations elsewhere.
- // NB: This syntax is a GNU extension.
-#if _GLIBCXX_EXTERN_TEMPLATE
+#if _GLIBCXX_EXTERN_TEMPLATE > 0
extern template class basic_string<char>;
extern template
basic_istream<char>&
getline(basic_istream<wchar_t>&, wstring&);
#endif
#endif
+
+_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
#endif
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