* include/c_std/bits/std_ctime.h: Undefine difftime.

[gcc.git] / libstdc++-v3 / include / c_std / bits / std_ctime.h

// -*- C++ -*- forwarding header.

// Copyright (C) 1997, 1998, 1999, 2000, 2001 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// 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.

//
// ISO C++ 14882: 20.5  Date and time
//

// Note: This is not a conforming implementation.

#ifndef _CPP_CTIME
#define _CPP_CTIME 1

#include <bits/c++config.h>
#include <bits/std_cstddef.h>

#pragma GCC system_header
#include <time.h>

#undef difftime

namespace std
{
  using ::clock_t;
  using ::time_t;
  using ::tm;

  extern "C" clock_t clock(void); 
  extern "C" double difftime(time_t, time_t); 
  extern "C" time_t mktime(struct tm*); 
  extern "C" time_t time(time_t*); 
  extern "C" char* asctime(const struct tm*); 
  extern "C" char* ctime(const time_t*); 
  extern "C" struct tm* gmtime(const time_t*); 
  extern "C" struct tm* localtime(const time_t*); 
  extern "C" size_t strftime(char*, size_t, const char*, const struct tm*);
}

#endif