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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [include/] [ext/] [string_conversions.h] - Rev 424
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// String Conversions -*- C++ -*- // Copyright (C) 2008, 2009 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 3, 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. // 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. // 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/>. #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
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