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

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