a5a6b58639
2008-06-29 Paolo Carlini <paolo.carlini@oracle.com> * src/string_conversions.cc: Remove. * config/abi/pre/gnu.ver: Delete exports. * src/Makefile.am: Update. * include/ext/string_conversions.h: Add. * include/Makefile.am: Update. * include/bits/basic_string.h: Include string_conversions.h, define numeric conversion functions. * include/ext/vstring.h: Likewise. * src/Makefile.in: Regenerate. * include/Makefile.in: Regenerate. From-SVN: r137253
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
// String Conversions -*- C++ -*-
|
|
|
|
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
|
|
// 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.
|
|
|
|
#ifndef _STRING_CONVERSIONS_H
|
|
#define _STRING_CONVERSIONS_H 1
|
|
|
|
#pragma GCC system_header
|
|
|
|
#include <ext/numeric_traits.h>
|
|
#include <bits/functexcept.h>
|
|
#include <cstddef>
|
|
#include <cstdlib>
|
|
#include <cwchar>
|
|
#include <cstdio>
|
|
#include <cerrno>
|
|
|
|
_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
|
|
|
|
// Helper for all the sto* functions.
|
|
template<typename _TRet, typename _Ret = _TRet, typename _CharT,
|
|
typename... _Base>
|
|
_Ret
|
|
__stoa(_TRet (*__convf) (const _CharT*, _CharT**, _Base...),
|
|
const char* __name, const _CharT* __str, std::size_t* __idx,
|
|
_Base... __base)
|
|
{
|
|
_Ret __ret;
|
|
|
|
_CharT* __endptr;
|
|
errno = 0;
|
|
const _TRet __tmp = __convf(__str, &__endptr, __base...);
|
|
|
|
if (__endptr == __str)
|
|
std::__throw_invalid_argument(__name);
|
|
else if (errno == ERANGE
|
|
|| (std::__are_same<_Ret, int>::__value
|
|
&& (__tmp < __numeric_traits<int>::__min
|
|
|| __tmp > __numeric_traits<int>::__max)))
|
|
std::__throw_out_of_range(__name);
|
|
else
|
|
__ret = __tmp;
|
|
|
|
if (__idx)
|
|
*__idx = __endptr - __str;
|
|
|
|
return __ret;
|
|
}
|
|
|
|
// Helper for the to_string / to_wstring functions.
|
|
template<typename _String, typename _CharT = typename _String::value_type>
|
|
_String
|
|
__to_xstring(int (*__convf) (_CharT*, std::size_t, const _CharT*,
|
|
__builtin_va_list), std::size_t __n,
|
|
const _CharT* __fmt, ...)
|
|
{
|
|
// XXX Eventually the result will be constructed in place in
|
|
// the C++0x string, likely with the help of internal hooks.
|
|
_CharT* __s = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __n));
|
|
|
|
__builtin_va_list __args;
|
|
__builtin_va_start(__args, __fmt);
|
|
|
|
const int __len = __convf(__s, __n, __fmt, __args);
|
|
|
|
__builtin_va_end(__args);
|
|
|
|
return _String(__s, __s + __len);
|
|
}
|
|
|
|
_GLIBCXX_END_NAMESPACE
|
|
|
|
#endif // _STRING_CONVERSIONS_H
|