libstdc++-v3/include/c_std/std_ctime.h

   1 // -*- C++ -*- forwarding header.
   2
   3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20 // USA.
  21
  22 // As a special exception, you may use this file as part of a free software
  23 // library without restriction.  Specifically, if other files instantiate
  24 // templates or use macros or inline functions from this file, or you compile
  25 // this file and link it with other files to produce an executable, this
  26 // file does not by itself cause the resulting executable to be covered by
  27 // the GNU General Public License.  This exception does not however
  28 // invalidate any other reasons why the executable file might be covered by
  29 // the GNU General Public License.
  30
  31 //
  32 // ISO C++ 14882: 20.5  Date and time
  33 //
  34
  35 /** @file ctime
  36  *  This is a Standard C++ Library file.  You should @c #include this file
  37  *  in your programs, rather than any of the "*.h" implementation files.
  38  *
  39  *  This is the C++ version of the Standard C Library header @c time.h,
  40  *  and its contents are (mostly) the same as that header, but are all
  41  *  contained in the namespace @c std.
  42  */
  43
  44 #ifndef _GLIBCXX_CTIME
  45 #define _GLIBCXX_CTIME 1
  46
  47 #pragma GCC system_header
  48
  49 #include <cstddef>
  50
  51 #include <time.h>
  52
  53 // Get rid of those macros defined in <time.h> in lieu of real functions.
  54 #undef clock
  55 #undef difftime
  56 #undef mktime
  57 #undef time
  58 #undef asctime
  59 #undef ctime
  60 #undef gmtime
  61 #undef localtime
  62 #undef strftime
  63
  64 namespace std
  65 {
  66   using ::clock_t;
  67   using ::time_t;
  68   using ::tm;
  69
  70   using ::clock;
  71   using ::difftime;
  72   using ::mktime;
  73   using ::time;
  74   using ::asctime;
  75   using ::ctime;
  76   using ::gmtime;
  77   using ::localtime;
  78   using ::strftime;
  79 }
  80
  81 #endif