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// <system_error> implementation file
 
// Copyright (C) 2007, 2008, 2009, 2010 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/>.
 
 
#include <cstring>
#include <system_error>
#include <bits/functexcept.h>
#include <limits>
 
namespace
{
  using std::string; 
 
  struct generic_error_category : public std::error_category
  {
    virtual const char*
    name() const 
    { return "generic"; }
 
    virtual string 
    message(int i) const
    {
      // XXX locale issues: how does one get or set loc.
      // _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc)
      return string(strerror(i));
    }
  };
 
  struct system_error_category : public std::error_category
  {
    virtual const char*
    name() const
    { return "system"; }
 
    virtual string
    message(int i) const
    {
      // XXX locale issues: how does one get or set loc.
      // _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc)
      return string(strerror(i));
    }
  };
 
  const generic_error_category generic_category_instance;
  const system_error_category system_category_instance;
}
 
_GLIBCXX_BEGIN_NAMESPACE(std)
 
  const error_category& 
  system_category() throw() { return system_category_instance; }
 
  const error_category& 
  generic_category() throw() { return generic_category_instance; }
 
  system_error::~system_error() throw() { }
 
  error_condition 
  error_category::default_error_condition(int __i) const
  { return error_condition(__i, *this); }
 
  bool 
  error_category::equivalent(int __i, const error_condition& __cond) const
  { return default_error_condition(__i) == __cond; }
 
  bool 
  error_category::equivalent(const error_code& __code, int __i) const
  { return *this == __code.category() && __code.value() == __i; }
 
  error_condition 
  error_code::default_error_condition() const
  { return category().default_error_condition(value()); }
 
_GLIBCXX_END_NAMESPACE