mirror of git://gcc.gnu.org/git/gcc.git
110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
// future -*- C++ -*-
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// Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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#include <future>
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namespace
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{
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struct future_error_category : public std::error_category
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{
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future_error_category() {}
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virtual const char*
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name() const
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{ return "future"; }
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virtual std::string message(int __ec) const
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{
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std::string __msg;
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switch (std::future_errc(__ec))
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{
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case std::future_errc::broken_promise:
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__msg = "Broken promise";
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break;
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case std::future_errc::future_already_retrieved:
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__msg = "Future already retrieved";
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break;
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case std::future_errc::promise_already_satisfied:
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__msg = "Promise already satisfied";
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break;
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case std::future_errc::no_state:
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__msg = "No associated state";
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break;
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default:
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__msg = "Unknown error";
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break;
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}
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return __msg;
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}
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};
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const future_error_category&
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__future_category_instance()
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{
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static const future_error_category __fec;
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return __fec;
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}
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}
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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const error_category& future_category()
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{ return __future_category_instance(); }
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future_error::~future_error() throw() { }
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const char*
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future_error::what() const throw() { return _M_code.message().c_str(); }
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__future_base::_Result_base::_Result_base() = default;
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__future_base::_Result_base::~_Result_base() = default;
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__future_base::_State_base::~_State_base() = default;
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_GLIBCXX_END_NAMESPACE_VERSION
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} // namespace std
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// XXX GLIBCXX_ABI Deprecated
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// gcc-4.6.0
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// <future> export changes
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#if defined(_GLIBCXX_SYMVER_GNU) && defined(PIC) \
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&& defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \
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&& defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
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namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
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{
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const std::error_category* future_category = &__future_category_instance();
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}
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#define _GLIBCXX_ASM_SYMVER(cur, old, version) \
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asm (".symver " #cur "," #old "@@@" #version);
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_GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx15future_categoryE, _ZSt15future_category, GLIBCXX_3.4.14)
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#endif
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