mdw@git.distorted.org.uk Git - misc/blob - timemax.cc

   1 /* -*-c++-*-
   2  *
   3  * Return the largest allowable time_t value
   4  *
   5  * (c) 2016 Mark Wooding
   6  */
   7
   8 /*----- Licensing notice --------------------------------------------------*
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software Foundation,
  22  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  */
  24
  25 /*----- Header files ------------------------------------------------------*/
  26
  27 #include <ctime>
  28 #include <limits>
  29
  30 #include "timemax.h"
  31
  32 using namespace std;
  33
  34 /*----- Main code ---------------------------------------------------------*/
  35
  36 /* --- @timemax@ --- *
  37  *
  38  * Arguments:   ---
  39  *
  40  * Returns:     The largest value repesentable in an object of type @time_t@.
  41  *
  42  * Use:         For some stupid reason there isn't a @TIME_MAX@ anywhere, and
  43  *              it's really hard to discover the right value in C.  But it's
  44  *              quite easy in C++, so that's what we do.
  45  */
  46
  47 time_t timemax() { return numeric_limits<time_t>::max(); }
  48
  49 /*----- That's all, folks -------------------------------------------------*/