// Locale support (codecvt) -*- C++ -*-
-// Copyright (C) 2000 Free Software Foundation, Inc.
+// Copyright (C) 2000-2024 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/codecvt.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{locale}
+ */
//
// ISO C++ 14882: 22.2.1.5 Template class codecvt
//
-// Warning: this file is not meant for user inclusion. Use <locale>.
+// Written by Benjamin Kosnik <bkoz@redhat.com>
-// Written by Benjamin Kosnik <bkoz@cygnus.com>
+#ifndef _CODECVT_H
+#define _CODECVT_H 1
-#ifndef _CPP_BITS_CODECVT_H
-#define _CPP_BITS_CODECVT_H 1
+#pragma GCC system_header
-#ifdef _GLIBCPP_USE_WCHAR_T
-#include <iconv.h> // For iconv, iconv_t
-#include <langinfo.h>
-#endif
+#include <bits/c++config.h>
+#include <bits/locale_classes.h> // locale::facet
-namespace std
+namespace std _GLIBCXX_VISIBILITY(default)
{
- // XXX __enc_traits may need to move up the locale header hierarchy,
- // depending on if ctype ends up using it.
-#ifdef _GLIBCPP_USE_WCHAR_T
- // Extensions to use icov for dealing with character encodings,
- // including conversions and comparisons between various character
- // sets. This object encapsulates data that may need to be shared between
- // char_traits, codecvt and ctype.
- class __enc_traits
- {
- public:
- // Types:
- // NB: A conversion descriptor subsumes and enhances the
- // functionality of a simple state type such as mbstate_t.
- typedef iconv_t __desc_type;
-
- protected:
- // Data Members:
- // Max size of charset encoding name
- static const int _S_max_size = 32;
- // Name of internal character set encoding.
- char _M_intc_enc[_S_max_size];
- // Name of external character set encoding.
- char _M_extc_enc[_S_max_size];
-
- // Conversion descriptor between external encoding to internal encoding.
- __desc_type _M_in_desc;
- // Conversion descriptor between internal encoding to external encoding.
- __desc_type _M_out_desc;
-
- public:
- __enc_traits() : _M_in_desc(0), _M_out_desc(0)
- {
- // __intc_end = whatever we are using internally, which is
- // UCS4 (linux)
- // UCS2 == UNICODE (microsoft, java, aix, whatever...)
- // XXX Currently don't know how to get this data from target system...
- strcpy(_M_intc_enc, "UCS4");
-
- // __extc_end = external codeset in current locale
- strcpy(_M_extc_enc, nl_langinfo(CODESET));
- }
-
- __enc_traits(const char* __int, const char* __ext)
- : _M_in_desc(0), _M_out_desc(0)
- {
- strncpy(_M_intc_enc, __int, _S_max_size);
- strncpy(_M_extc_enc, __ext, _S_max_size);
- }
-
- // 21.1.2 traits typedefs
- // p4
- // typedef STATE_T state_type
- // requires: state_type shall meet the requirements of
- // CopyConstructible types (20.1.3)
- __enc_traits(const __enc_traits& __obj)
- {
- strncpy(_M_intc_enc, __obj._M_intc_enc, _S_max_size);
- strncpy(_M_extc_enc, __obj._M_extc_enc, _S_max_size);
- }
-
- ~__enc_traits()
- {
- iconv_close(_M_in_desc);
- iconv_close(_M_out_desc);
- }
-
- // Initializes
- void
- _M_init()
- {
- _M_in_desc = iconv_open(_M_intc_enc, _M_extc_enc);
- _M_out_desc = iconv_open(_M_extc_enc, _M_intc_enc);
- if (_M_out_desc == iconv_t(-1) || _M_in_desc == iconv_t(-1))
- {
- // XXX Extended error checking.
- }
- }
-
- bool
- _M_good()
- {
- return _M_out_desc && _M_in_desc
- && _M_out_desc != iconv_t(-1) && _M_in_desc != iconv_t(-1);
- }
-
- const __desc_type*
- _M_get_in_descriptor()
- { return &_M_in_desc; }
-
- const __desc_type*
- _M_get_out_descriptor()
- { return &_M_out_desc; }
-
- const char*
- _M_get_internal_enc()
- { return _M_intc_enc; }
-
- const char*
- _M_get_external_enc()
- { return _M_extc_enc; }
- };
-#endif //_GLIBCPP_USE_WCHAR_T
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
-
- // 22.2.1.5 Template class codecvt
+ /// Empty base class for codecvt facet [22.2.1.5].
class codecvt_base
{
public:
};
};
- // Template class __codecvt_abstract_base
- // NB: An abstract base class that fills in the public inlines, so
- // that the specializations don't have to re-copy the public
- // interface.
+ /**
+ * @brief Common base for codecvt functions.
+ *
+ * This template class provides implementations of the public functions
+ * that forward to the protected virtual functions.
+ *
+ * This template also provides abstract stubs for the protected virtual
+ * functions.
+ */
template<typename _InternT, typename _ExternT, typename _StateT>
- class __codecvt_abstract_base
+ class __codecvt_abstract_base
: public locale::facet, public codecvt_base
{
public:
// Types:
- typedef codecvt_base::result result;
- typedef _InternT intern_type;
- typedef _ExternT extern_type;
- typedef _StateT state_type;
-
+ typedef codecvt_base::result result;
+ typedef _InternT intern_type;
+ typedef _ExternT extern_type;
+ typedef _StateT state_type;
+
// 22.2.1.5.1 codecvt members
+ /**
+ * @brief Convert from internal to external character set.
+ *
+ * Converts input string of intern_type to output string of
+ * extern_type. This is analogous to wcsrtombs. It does this by
+ * calling codecvt::do_out.
+ *
+ * The source and destination character sets are determined by the
+ * facet's locale, internal and external types.
+ *
+ * The characters in [from,from_end) are converted and written to
+ * [to,to_end). from_next and to_next are set to point to the
+ * character following the last successfully converted character,
+ * respectively. If the result needed no conversion, from_next and
+ * to_next are not affected.
+ *
+ * The @a state argument should be initialized if the input is at the
+ * beginning and carried from a previous call if continuing
+ * conversion. There are no guarantees about how @a state is used.
+ *
+ * The result returned is a member of codecvt_base::result. If
+ * all the input is converted, returns codecvt_base::ok. If no
+ * conversion is necessary, returns codecvt_base::noconv. If
+ * the input ends early or there is insufficient space in the
+ * output, returns codecvt_base::partial. Otherwise the
+ * conversion failed and codecvt_base::error is returned.
+ *
+ * @param __state Persistent conversion state data.
+ * @param __from Start of input.
+ * @param __from_end End of input.
+ * @param __from_next Returns start of unconverted data.
+ * @param __to Start of output buffer.
+ * @param __to_end End of output buffer.
+ * @param __to_next Returns start of unused output area.
+ * @return codecvt_base::result.
+ */
result
- out(state_type& __state, const intern_type* __from,
+ out(state_type& __state, const intern_type* __from,
const intern_type* __from_end, const intern_type*& __from_next,
- extern_type* __to, extern_type* __to_end,
+ extern_type* __to, extern_type* __to_end,
extern_type*& __to_next) const
- {
- return this->do_out(__state, __from, __from_end, __from_next,
- __to, __to_end, __to_next);
+ {
+ return this->do_out(__state, __from, __from_end, __from_next,
+ __to, __to_end, __to_next);
}
+ /**
+ * @brief Reset conversion state.
+ *
+ * Writes characters to output that would restore @a state to initial
+ * conditions. The idea is that if a partial conversion occurs, then
+ * the converting the characters written by this function would leave
+ * the state in initial conditions, rather than partial conversion
+ * state. It does this by calling codecvt::do_unshift().
+ *
+ * For example, if 4 external characters always converted to 1 internal
+ * character, and input to in() had 6 external characters with state
+ * saved, this function would write two characters to the output and
+ * set the state to initialized conditions.
+ *
+ * The source and destination character sets are determined by the
+ * facet's locale, internal and external types.
+ *
+ * The result returned is a member of codecvt_base::result. If the
+ * state could be reset and data written, returns codecvt_base::ok. If
+ * no conversion is necessary, returns codecvt_base::noconv. If the
+ * output has insufficient space, returns codecvt_base::partial.
+ * Otherwise the reset failed and codecvt_base::error is returned.
+ *
+ * @param __state Persistent conversion state data.
+ * @param __to Start of output buffer.
+ * @param __to_end End of output buffer.
+ * @param __to_next Returns start of unused output area.
+ * @return codecvt_base::result.
+ */
result
unshift(state_type& __state, extern_type* __to, extern_type* __to_end,
extern_type*& __to_next) const
{ return this->do_unshift(__state, __to,__to_end,__to_next); }
+ /**
+ * @brief Convert from external to internal character set.
+ *
+ * Converts input string of extern_type to output string of
+ * intern_type. This is analogous to mbsrtowcs. It does this by
+ * calling codecvt::do_in.
+ *
+ * The source and destination character sets are determined by the
+ * facet's locale, internal and external types.
+ *
+ * The characters in [from,from_end) are converted and written to
+ * [to,to_end). from_next and to_next are set to point to the
+ * character following the last successfully converted character,
+ * respectively. If the result needed no conversion, from_next and
+ * to_next are not affected.
+ *
+ * The @a state argument should be initialized if the input is at the
+ * beginning and carried from a previous call if continuing
+ * conversion. There are no guarantees about how @a state is used.
+ *
+ * The result returned is a member of codecvt_base::result. If
+ * all the input is converted, returns codecvt_base::ok. If no
+ * conversion is necessary, returns codecvt_base::noconv. If
+ * the input ends early or there is insufficient space in the
+ * output, returns codecvt_base::partial. Otherwise the
+ * conversion failed and codecvt_base::error is returned.
+ *
+ * @param __state Persistent conversion state data.
+ * @param __from Start of input.
+ * @param __from_end End of input.
+ * @param __from_next Returns start of unconverted data.
+ * @param __to Start of output buffer.
+ * @param __to_end End of output buffer.
+ * @param __to_next Returns start of unused output area.
+ * @return codecvt_base::result.
+ */
result
- in(state_type& __state, const extern_type* __from,
+ in(state_type& __state, const extern_type* __from,
const extern_type* __from_end, const extern_type*& __from_next,
- intern_type* __to, intern_type* __to_end,
+ intern_type* __to, intern_type* __to_end,
intern_type*& __to_next) const
- {
+ {
return this->do_in(__state, __from, __from_end, __from_next,
- __to, __to_end, __to_next);
+ __to, __to_end, __to_next);
}
- int
+ int
encoding() const throw()
{ return this->do_encoding(); }
- bool
+ bool
always_noconv() const throw()
{ return this->do_always_noconv(); }
int
- length(const state_type& __state, const extern_type* __from,
+ length(state_type& __state, const extern_type* __from,
const extern_type* __end, size_t __max) const
{ return this->do_length(__state, __from, __end, __max); }
- int
+ int
max_length() const throw()
{ return this->do_max_length(); }
protected:
- explicit
+ explicit
__codecvt_abstract_base(size_t __refs = 0) : locale::facet(__refs) { }
- virtual
+ virtual
~__codecvt_abstract_base() { }
+ /**
+ * @brief Convert from internal to external character set.
+ *
+ * Converts input string of intern_type to output string of
+ * extern_type. This function is a hook for derived classes to change
+ * the value returned. @see out for more information.
+ */
virtual result
- do_out(state_type& __state, const intern_type* __from,
+ do_out(state_type& __state, const intern_type* __from,
const intern_type* __from_end, const intern_type*& __from_next,
extern_type* __to, extern_type* __to_end,
extern_type*& __to_next) const = 0;
virtual result
- do_unshift(state_type& __state, extern_type* __to,
+ do_unshift(state_type& __state, extern_type* __to,
extern_type* __to_end, extern_type*& __to_next) const = 0;
-
+
virtual result
- do_in(state_type& __state, const extern_type* __from,
- const extern_type* __from_end, const extern_type*& __from_next,
- intern_type* __to, intern_type* __to_end,
+ do_in(state_type& __state, const extern_type* __from,
+ const extern_type* __from_end, const extern_type*& __from_next,
+ intern_type* __to, intern_type* __to_end,
intern_type*& __to_next) const = 0;
-
- virtual int
+
+ virtual int
do_encoding() const throw() = 0;
- virtual bool
+ virtual bool
do_always_noconv() const throw() = 0;
- virtual int
- do_length(const state_type&, const extern_type* __from,
+ virtual int
+ do_length(state_type&, const extern_type* __from,
const extern_type* __end, size_t __max) const = 0;
- virtual int
+ virtual int
do_max_length() const throw() = 0;
};
- // 22.2.1.5 Template class codecvt
- // NB: Generic, mostly useless implementation.
- template<typename _InternT, typename _ExternT, typename _StateT>
- class codecvt
+ /**
+ * @brief Primary class template codecvt.
+ * @ingroup locales
+ *
+ * NB: Generic, mostly useless implementation.
+ *
+ */
+ template<typename _InternT, typename _ExternT, typename _StateT>
+ class codecvt
: public __codecvt_abstract_base<_InternT, _ExternT, _StateT>
{
- public:
+ public:
// Types:
- typedef codecvt_base::result result;
- typedef _InternT intern_type;
- typedef _ExternT extern_type;
- typedef _StateT state_type;
-
- // Data Members:
- static locale::id id;
-
- explicit
- codecvt(size_t __refs = 0)
- : __codecvt_abstract_base<_InternT,_ExternT,_StateT> (__refs) { }
+ typedef codecvt_base::result result;
+ typedef _InternT intern_type;
+ typedef _ExternT extern_type;
+ typedef _StateT state_type;
protected:
- virtual
- ~codecvt() { }
- };
+ __c_locale _M_c_locale_codecvt;
- template<typename _InternT, typename _ExternT, typename _StateT>
- locale::id codecvt<_InternT, _ExternT, _StateT>::id;
-
- // partial specialization
- // This specialization takes advantage of iconv to provide code
- // conversions between a large number of character encodings.
- template<typename _InternT, typename _ExternT>
- class codecvt<_InternT, _ExternT, __enc_traits>
- : public __codecvt_abstract_base<_InternT, _ExternT, __enc_traits>
- {
- public:
- // Types:
- typedef codecvt_base::result result;
- typedef _InternT intern_type;
- typedef _ExternT extern_type;
- typedef __enc_traits state_type;
- typedef __enc_traits::__desc_type __desc_type;
- typedef __enc_traits __enc_type;
-
- // Data Members:
- static locale::id id;
+ public:
+ static locale::id id;
- explicit
+ explicit
codecvt(size_t __refs = 0)
- : __codecvt_abstract_base<intern_type, extern_type, state_type>(__refs)
+ : __codecvt_abstract_base<_InternT, _ExternT, _StateT> (__refs),
+ _M_c_locale_codecvt(0)
{ }
- explicit
- codecvt(__enc_type* __enc, size_t __refs = 0)
- : __codecvt_abstract_base<intern_type, extern_type, state_type>(__refs)
- { }
+ explicit
+ codecvt(__c_locale __cloc, size_t __refs = 0);
protected:
- virtual
+ virtual
~codecvt() { }
virtual result
- do_out(state_type& __state, const intern_type* __from,
+ do_out(state_type& __state, const intern_type* __from,
const intern_type* __from_end, const intern_type*& __from_next,
extern_type* __to, extern_type* __to_end,
extern_type*& __to_next) const;
virtual result
- do_unshift(state_type& __state, extern_type* __to,
+ do_unshift(state_type& __state, extern_type* __to,
extern_type* __to_end, extern_type*& __to_next) const;
virtual result
- do_in(state_type& __state, const extern_type* __from,
+ do_in(state_type& __state, const extern_type* __from,
const extern_type* __from_end, const extern_type*& __from_next,
- intern_type* __to, intern_type* __to_end,
+ intern_type* __to, intern_type* __to_end,
intern_type*& __to_next) const;
- virtual int
+ virtual int
do_encoding() const throw();
- virtual bool
+ virtual bool
do_always_noconv() const throw();
- virtual int
- do_length(const state_type&, const extern_type* __from,
+ virtual int
+ do_length(state_type&, const extern_type* __from,
const extern_type* __end, size_t __max) const;
- virtual int
+ virtual int
do_max_length() const throw();
};
- template<typename _InternT, typename _ExternT>
- locale::id
- codecvt<_InternT, _ExternT, __enc_traits>::id;
-
- template<typename _InternT, typename _ExternT>
- codecvt_base::result
- codecvt<_InternT, _ExternT, __enc_traits>::
- do_out(state_type& __state, const intern_type* __from,
- const intern_type* __from_end, const intern_type*& __from_next,
- extern_type* __to, extern_type* __to_end,
- extern_type*& __to_next) const
- {
- result __ret = error;
- if (__state._M_good())
- {
- typedef state_type::__desc_type __desc_type;
- const __desc_type* __desc = __state._M_get_out_descriptor();
- const size_t __fmultiple = sizeof(intern_type) / sizeof(char);
- size_t __flen = __fmultiple * (__from_end - __from);
- const size_t __tmultiple = sizeof(extern_type) / sizeof(char);
- size_t __tlen = __tmultiple * (__to_end - __to);
-
- // Argument list for iconv specifies a byte sequence. Thus,
- // all to/from arrays must be brutally casted to char*.
- char* __cfrom = reinterpret_cast<char*>(const_cast<intern_type*>(__from));
- char* __cto = reinterpret_cast<char*>(__to);
- size_t __conv = iconv(*__desc, &__cfrom, &__flen, &__cto, &__tlen);
-
- if (__conv != size_t(-1))
- {
- __from_next = reinterpret_cast<const intern_type*>(__cfrom);
- __to_next = reinterpret_cast<extern_type*>(__cto);
- __ret = ok;
- }
- else
- {
- if (__flen < __from_end - __from)
- {
- __from_next = reinterpret_cast<const intern_type*>(__cfrom);
- __to_next = reinterpret_cast<extern_type*>(__cto);
- __ret = partial;
- }
- else
- __ret = error;
- }
- }
- return __ret;
- }
-
- template<typename _InternT, typename _ExternT>
- codecvt_base::result
- codecvt<_InternT, _ExternT, __enc_traits>::
- do_unshift(state_type& __state, extern_type* __to,
- extern_type* __to_end, extern_type*& __to_next) const
- {
- result __ret = error;
- if (__state._M_good())
- {
- typedef state_type::__desc_type __desc_type;
- const __desc_type* __desc = __state._M_get_in_descriptor();
- const size_t __tmultiple = sizeof(intern_type) / sizeof(char);
- size_t __tlen = __tmultiple * (__to_end - __to);
-
- // Argument list for iconv specifies a byte sequence. Thus,
- // all to/from arrays must be brutally casted to char*.
- char* __cto = reinterpret_cast<char*>(__to);
- size_t __conv = iconv(*__desc, NULL, NULL, &__cto, &__tlen);
-
- if (__conv != size_t(-1))
- {
- __to_next = reinterpret_cast<extern_type*>(__cto);
- if (__tlen == __tmultiple * (__to_end - __to))
- __ret = noconv;
- else if (__tlen == 0)
- __ret = ok;
- else
- __ret = partial;
- }
- else
- __ret = error;
- }
- return __ret;
- }
-
- template<typename _InternT, typename _ExternT>
- codecvt_base::result
- codecvt<_InternT, _ExternT, __enc_traits>::
- do_in(state_type& __state, const extern_type* __from,
- const extern_type* __from_end, const extern_type*& __from_next,
- intern_type* __to, intern_type* __to_end,
- intern_type*& __to_next) const
- {
- result __ret = error;
- if (__state._M_good())
- {
- typedef state_type::__desc_type __desc_type;
- const __desc_type* __desc = __state._M_get_in_descriptor();
- const size_t __fmultiple = sizeof(extern_type) / sizeof(char);
- size_t __flen = __fmultiple * (__from_end - __from);
- const size_t __tmultiple = sizeof(intern_type) / sizeof(char);
- size_t __tlen = __tmultiple * (__to_end - __to);
-
- // Argument list for iconv specifies a byte sequence. Thus,
- // all to/from arrays must be brutally casted to char*.
- char* __cfrom = reinterpret_cast<char*>(const_cast<extern_type*>(__from));
- char* __cto = reinterpret_cast<char*>(__to);
- size_t __conv = iconv(*__desc, &__cfrom, &__flen, &__cto, &__tlen);
-
- if (__conv != size_t(-1))
- {
- __from_next = reinterpret_cast<const extern_type*>(__cfrom);
- __to_next = reinterpret_cast<intern_type*>(__cto);
- __ret = ok;
- }
- else
- {
- if (__flen < __from_end - __from)
- {
- __from_next = reinterpret_cast<const extern_type*>(__cfrom);
- __to_next = reinterpret_cast<intern_type*>(__cto);
- __ret = partial;
- }
- else
- __ret = error;
- }
- }
- return __ret;
- }
-
- template<typename _InternT, typename _ExternT>
- int
- codecvt<_InternT, _ExternT, __enc_traits>::
- do_encoding() const throw()
- { return 0; }
-
- template<typename _InternT, typename _ExternT>
- bool
- codecvt<_InternT, _ExternT, __enc_traits>::
- do_always_noconv() const throw()
- { return false; }
-
- template<typename _InternT, typename _ExternT>
- int
- codecvt<_InternT, _ExternT, __enc_traits>::
- do_length(const state_type& __state, const extern_type* __from,
- const extern_type* __end, size_t __max) const
- { return min(__max, static_cast<size_t>(__end - __from)); }
-
-#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
-// 74. Garbled text for codecvt::do_max_length
- template<typename _InternT, typename _ExternT>
- int
- codecvt<_InternT, _ExternT, __enc_traits>::
- do_max_length() const throw()
- { return 1; }
-#endif
+ template<typename _InternT, typename _ExternT, typename _StateT>
+ locale::id codecvt<_InternT, _ExternT, _StateT>::id;
- // codecvt<char, char, mbstate_t> required specialization
+ /// class codecvt<char, char, mbstate_t> specialization.
template<>
- class codecvt<char, char, mbstate_t>
+ class codecvt<char, char, mbstate_t>
: public __codecvt_abstract_base<char, char, mbstate_t>
{
- public:
+ friend class messages<char>;
+
+ public:
// Types:
- typedef char intern_type;
- typedef char extern_type;
- typedef mbstate_t state_type;
+ typedef char intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ protected:
+ __c_locale _M_c_locale_codecvt;
- // Data Members:
+ public:
static locale::id id;
- explicit
+ explicit
codecvt(size_t __refs = 0);
+ explicit
+ codecvt(__c_locale __cloc, size_t __refs = 0);
+
protected:
- virtual
+ virtual
~codecvt();
virtual result
- do_out(state_type& __state, const intern_type* __from,
+ do_out(state_type& __state, const intern_type* __from,
const intern_type* __from_end, const intern_type*& __from_next,
extern_type* __to, extern_type* __to_end,
extern_type*& __to_next) const;
virtual result
- do_unshift(state_type& __state, extern_type* __to,
+ do_unshift(state_type& __state, extern_type* __to,
extern_type* __to_end, extern_type*& __to_next) const;
virtual result
- do_in(state_type& __state, const extern_type* __from,
+ do_in(state_type& __state, const extern_type* __from,
const extern_type* __from_end, const extern_type*& __from_next,
- intern_type* __to, intern_type* __to_end,
+ intern_type* __to, intern_type* __to_end,
intern_type*& __to_next) const;
- virtual int
+ virtual int
do_encoding() const throw();
- virtual bool
+ virtual bool
do_always_noconv() const throw();
- virtual int
- do_length(const state_type&, const extern_type* __from,
+ virtual int
+ do_length(state_type&, const extern_type* __from,
const extern_type* __end, size_t __max) const;
- virtual int
+ virtual int
do_max_length() const throw();
};
-#ifdef _GLIBCPP_USE_WCHAR_T
- // codecvt<wchar_t, char, mbstate_t> required specialization
+#ifdef _GLIBCXX_USE_WCHAR_T
+ /** @brief Class codecvt<wchar_t, char, mbstate_t> specialization.
+ *
+ * Converts between narrow and wide characters in the native character set
+ */
template<>
- class codecvt<wchar_t, char, mbstate_t>
+ class codecvt<wchar_t, char, mbstate_t>
: public __codecvt_abstract_base<wchar_t, char, mbstate_t>
{
+ friend class messages<wchar_t>;
+
public:
// Types:
- typedef wchar_t intern_type;
- typedef char extern_type;
- typedef mbstate_t state_type;
+ typedef wchar_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
- // Data Members:
- static locale::id id;
+ protected:
+ __c_locale _M_c_locale_codecvt;
- explicit
+ public:
+ static locale::id id;
+
+ explicit
codecvt(size_t __refs = 0);
+ explicit
+ codecvt(__c_locale __cloc, size_t __refs = 0);
+
+ protected:
+ virtual
+ ~codecvt();
+
+ virtual result
+ do_out(state_type& __state, const intern_type* __from,
+ const intern_type* __from_end, const intern_type*& __from_next,
+ extern_type* __to, extern_type* __to_end,
+ extern_type*& __to_next) const;
+
+ virtual result
+ do_unshift(state_type& __state,
+ extern_type* __to, extern_type* __to_end,
+ extern_type*& __to_next) const;
+
+ virtual result
+ do_in(state_type& __state,
+ const extern_type* __from, const extern_type* __from_end,
+ const extern_type*& __from_next,
+ intern_type* __to, intern_type* __to_end,
+ intern_type*& __to_next) const;
+
+ virtual
+ int do_encoding() const throw();
+
+ virtual
+ bool do_always_noconv() const throw();
+
+ virtual
+ int do_length(state_type&, const extern_type* __from,
+ const extern_type* __end, size_t __max) const;
+
+ virtual int
+ do_max_length() const throw();
+ };
+#endif //_GLIBCXX_USE_WCHAR_T
+
+#if __cplusplus >= 201103L
+ /** @brief Class codecvt<char16_t, char, mbstate_t> specialization.
+ *
+ * Converts between UTF-16 and UTF-8.
+ */
+ template<>
+ class codecvt<char16_t, char, mbstate_t>
+ : public __codecvt_abstract_base<char16_t, char, mbstate_t>
+ {
+ public:
+ // Types:
+ typedef char16_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ public:
+ static locale::id id;
+
+ explicit
+ codecvt(size_t __refs = 0)
+ : __codecvt_abstract_base<char16_t, char, mbstate_t>(__refs) { }
+
+ protected:
+ virtual
+ ~codecvt();
+
+ virtual result
+ do_out(state_type& __state, const intern_type* __from,
+ const intern_type* __from_end, const intern_type*& __from_next,
+ extern_type* __to, extern_type* __to_end,
+ extern_type*& __to_next) const;
+
+ virtual result
+ do_unshift(state_type& __state,
+ extern_type* __to, extern_type* __to_end,
+ extern_type*& __to_next) const;
+
+ virtual result
+ do_in(state_type& __state,
+ const extern_type* __from, const extern_type* __from_end,
+ const extern_type*& __from_next,
+ intern_type* __to, intern_type* __to_end,
+ intern_type*& __to_next) const;
+
+ virtual
+ int do_encoding() const throw();
+
+ virtual
+ bool do_always_noconv() const throw();
+
+ virtual
+ int do_length(state_type&, const extern_type* __from,
+ const extern_type* __end, size_t __max) const;
+
+ virtual int
+ do_max_length() const throw();
+ };
+
+ /** @brief Class codecvt<char32_t, char, mbstate_t> specialization.
+ *
+ * Converts between UTF-32 and UTF-8.
+ */
+ template<>
+ class codecvt<char32_t, char, mbstate_t>
+ : public __codecvt_abstract_base<char32_t, char, mbstate_t>
+ {
+ public:
+ // Types:
+ typedef char32_t intern_type;
+ typedef char extern_type;
+ typedef mbstate_t state_type;
+
+ public:
+ static locale::id id;
+
+ explicit
+ codecvt(size_t __refs = 0)
+ : __codecvt_abstract_base<char32_t, char, mbstate_t>(__refs) { }
+
+ protected:
+ virtual
+ ~codecvt();
+
+ virtual result
+ do_out(state_type& __state, const intern_type* __from,
+ const intern_type* __from_end, const intern_type*& __from_next,
+ extern_type* __to, extern_type* __to_end,
+ extern_type*& __to_next) const;
+
+ virtual result
+ do_unshift(state_type& __state,
+ extern_type* __to, extern_type* __to_end,
+ extern_type*& __to_next) const;
+
+ virtual result
+ do_in(state_type& __state,
+ const extern_type* __from, const extern_type* __from_end,
+ const extern_type*& __from_next,
+ intern_type* __to, intern_type* __to_end,
+ intern_type*& __to_next) const;
+
+ virtual
+ int do_encoding() const throw();
+
+ virtual
+ bool do_always_noconv() const throw();
+
+ virtual
+ int do_length(state_type&, const extern_type* __from,
+ const extern_type* __end, size_t __max) const;
+
+ virtual int
+ do_max_length() const throw();
+ };
+
+#ifdef _GLIBCXX_USE_CHAR8_T
+ /** @brief Class codecvt<char16_t, char8_t, mbstate_t> specialization.
+ *
+ * Converts between UTF-16 and UTF-8.
+ */
+ template<>
+ class codecvt<char16_t, char8_t, mbstate_t>
+ : public __codecvt_abstract_base<char16_t, char8_t, mbstate_t>
+ {
+ public:
+ // Types:
+ typedef char16_t intern_type;
+ typedef char8_t extern_type;
+ typedef mbstate_t state_type;
+
+ public:
+ static locale::id id;
+
+ explicit
+ codecvt(size_t __refs = 0)
+ : __codecvt_abstract_base<char16_t, char8_t, mbstate_t>(__refs) { }
+
+ protected:
+ virtual
+ ~codecvt();
+
+ virtual result
+ do_out(state_type& __state, const intern_type* __from,
+ const intern_type* __from_end, const intern_type*& __from_next,
+ extern_type* __to, extern_type* __to_end,
+ extern_type*& __to_next) const;
+
+ virtual result
+ do_unshift(state_type& __state,
+ extern_type* __to, extern_type* __to_end,
+ extern_type*& __to_next) const;
+
+ virtual result
+ do_in(state_type& __state,
+ const extern_type* __from, const extern_type* __from_end,
+ const extern_type*& __from_next,
+ intern_type* __to, intern_type* __to_end,
+ intern_type*& __to_next) const;
+
+ virtual
+ int do_encoding() const throw();
+
+ virtual
+ bool do_always_noconv() const throw();
+
+ virtual
+ int do_length(state_type&, const extern_type* __from,
+ const extern_type* __end, size_t __max) const;
+
+ virtual int
+ do_max_length() const throw();
+ };
+
+ /** @brief Class codecvt<char32_t, char8_t, mbstate_t> specialization.
+ *
+ * Converts between UTF-32 and UTF-8.
+ */
+ template<>
+ class codecvt<char32_t, char8_t, mbstate_t>
+ : public __codecvt_abstract_base<char32_t, char8_t, mbstate_t>
+ {
+ public:
+ // Types:
+ typedef char32_t intern_type;
+ typedef char8_t extern_type;
+ typedef mbstate_t state_type;
+
+ public:
+ static locale::id id;
+
+ explicit
+ codecvt(size_t __refs = 0)
+ : __codecvt_abstract_base<char32_t, char8_t, mbstate_t>(__refs) { }
+
protected:
- virtual
+ virtual
~codecvt();
virtual result
- do_out(state_type& __state, const intern_type* __from,
+ do_out(state_type& __state, const intern_type* __from,
const intern_type* __from_end, const intern_type*& __from_next,
extern_type* __to, extern_type* __to_end,
extern_type*& __to_next) const;
intern_type* __to, intern_type* __to_end,
intern_type*& __to_next) const;
- virtual
+ virtual
int do_encoding() const throw();
- virtual
+ virtual
bool do_always_noconv() const throw();
- virtual
- int do_length(const state_type&, const extern_type* __from,
+ virtual
+ int do_length(state_type&, const extern_type* __from,
const extern_type* __end, size_t __max) const;
- virtual int
+ virtual int
do_max_length() const throw();
};
-#endif //_GLIBCPP_USE_WCHAR_T
+#endif // _GLIBCXX_USE_CHAR8_T
- // 22.2.1.6 Template class codecvt_byname
+#endif // C++11
+
+ /// class codecvt_byname [22.2.1.6].
template<typename _InternT, typename _ExternT, typename _StateT>
class codecvt_byname : public codecvt<_InternT, _ExternT, _StateT>
{
public:
- explicit
- codecvt_byname(const char*, size_t __refs = 0)
- : codecvt<_InternT,_ExternT,_StateT> (__refs) { }
+ explicit
+ codecvt_byname(const char* __s, size_t __refs = 0)
+ : codecvt<_InternT, _ExternT, _StateT>(__refs)
+ {
+ if (__builtin_strcmp(__s, "C") != 0
+ && __builtin_strcmp(__s, "POSIX") != 0)
+ {
+ this->_S_destroy_c_locale(this->_M_c_locale_codecvt);
+ this->_S_create_c_locale(this->_M_c_locale_codecvt, __s);
+ }
+ }
+
+#if __cplusplus >= 201103L
+ explicit
+ codecvt_byname(const string& __s, size_t __refs = 0)
+ : codecvt_byname(__s.c_str(), __refs) { }
+#endif
+
protected:
- virtual
+ virtual
~codecvt_byname() { }
};
+#if __cplusplus >= 201103L
template<>
- class codecvt_byname<char, char, mbstate_t>
- : public codecvt<char, char, mbstate_t>
+ class codecvt_byname<char16_t, char, mbstate_t>
+ : public codecvt<char16_t, char, mbstate_t>
{
public:
- explicit
- codecvt_byname(const char*, size_t __refs = 0);
+ explicit
+ codecvt_byname(const char*, size_t __refs = 0)
+ : codecvt<char16_t, char, mbstate_t>(__refs) { }
+
+ explicit
+ codecvt_byname(const string& __s, size_t __refs = 0)
+ : codecvt_byname(__s.c_str(), __refs) { }
protected:
- virtual
- ~codecvt_byname();
+ virtual
+ ~codecvt_byname() { }
};
-
-#ifdef _GLIBCPP_USE_WCHAR_T
+
template<>
- class codecvt_byname<wchar_t, char, mbstate_t>
- : public codecvt<wchar_t, char, mbstate_t>
+ class codecvt_byname<char32_t, char, mbstate_t>
+ : public codecvt<char32_t, char, mbstate_t>
{
public:
- explicit
- codecvt_byname(const char*, size_t __refs = 0);
+ explicit
+ codecvt_byname(const char*, size_t __refs = 0)
+ : codecvt<char32_t, char, mbstate_t>(__refs) { }
+
+ explicit
+ codecvt_byname(const string& __s, size_t __refs = 0)
+ : codecvt_byname(__s.c_str(), __refs) { }
protected:
- virtual
- ~codecvt_byname();
+ virtual
+ ~codecvt_byname() { }
+ };
+
+#if defined(_GLIBCXX_USE_CHAR8_T)
+ template<>
+ class codecvt_byname<char16_t, char8_t, mbstate_t>
+ : public codecvt<char16_t, char8_t, mbstate_t>
+ {
+ public:
+ explicit
+ codecvt_byname(const char*, size_t __refs = 0)
+ : codecvt<char16_t, char8_t, mbstate_t>(__refs) { }
+
+ explicit
+ codecvt_byname(const string& __s, size_t __refs = 0)
+ : codecvt_byname(__s.c_str(), __refs) { }
+
+ protected:
+ virtual
+ ~codecvt_byname() { }
+ };
+
+ template<>
+ class codecvt_byname<char32_t, char8_t, mbstate_t>
+ : public codecvt<char32_t, char8_t, mbstate_t>
+ {
+ public:
+ explicit
+ codecvt_byname(const char*, size_t __refs = 0)
+ : codecvt<char32_t, char8_t, mbstate_t>(__refs) { }
+
+ explicit
+ codecvt_byname(const string& __s, size_t __refs = 0)
+ : codecvt_byname(__s.c_str(), __refs) { }
+
+ protected:
+ virtual
+ ~codecvt_byname() { }
};
#endif
-} // namespace std
+#endif // C++11
+
+ // Inhibit implicit instantiations for required instantiations,
+ // which are defined via explicit instantiations elsewhere.
+#if _GLIBCXX_EXTERN_TEMPLATE
+ extern template class codecvt_byname<char, char, mbstate_t>;
-#endif // _CPP_BITS_CODECVT_H
+ extern template
+ const codecvt<char, char, mbstate_t>&
+ use_facet<codecvt<char, char, mbstate_t> >(const locale&);
-// Local Variables:
-// mode:c++
-// End:
+ extern template
+ bool
+ has_facet<codecvt<char, char, mbstate_t> >(const locale&);
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+ extern template class codecvt_byname<wchar_t, char, mbstate_t>;
+
+ extern template
+ const codecvt<wchar_t, char, mbstate_t>&
+ use_facet<codecvt<wchar_t, char, mbstate_t> >(const locale&);
+
+ extern template
+ bool
+ has_facet<codecvt<wchar_t, char, mbstate_t> >(const locale&);
+#endif
+
+#if __cplusplus >= 201103L
+ extern template class codecvt_byname<char16_t, char, mbstate_t>;
+ extern template class codecvt_byname<char32_t, char, mbstate_t>;
+
+#if defined(_GLIBCXX_USE_CHAR8_T)
+ extern template class codecvt_byname<char16_t, char8_t, mbstate_t>;
+ extern template class codecvt_byname<char32_t, char8_t, mbstate_t>;
+#endif
+
+#endif
+
+#endif
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // _CODECVT_H
projects / thirdparty / gcc.git / blobdiff