text: /* Convert string representation of a number into an intmax_t value.
     Copyright 1999, 2001 Free Software Foundation, Inc.
  
     This program 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 program 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 program; if not, write to the Free Software Foundation,
     Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  
  /* Written by Paul Eggert. */
  
  #if HAVE_CONFIG_H
  # include <config.h>
  #endif
  
  #if HAVE_INTTYPES_H
  # include <inttypes.h>
  #endif
  
  #if HAVE_STDLIB_H
  # include <stdlib.h>
  #endif
  
  #ifndef PARAMS
  # if defined PROTOTYPES || defined __STDC__
  #  define PARAMS(Args) Args
  # else
  #  define PARAMS(Args) ()
  # endif
  #endif
  
  /* Verify a requirement at compile-time (unlike assert, which is runtime).  */
  #define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
  
  #ifdef UNSIGNED
  # ifndef HAVE_DECL_STRTOUL
  "this configure-time declaration test was not run"
  # endif
  # if !HAVE_DECL_STRTOUL
  unsigned long strtoul PARAMS ((char const *, char **, int));
  # endif
  # ifndef HAVE_DECL_STRTOULL
  "this configure-time declaration test was not run"
  # endif
  # if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG
  unsigned long long strtoull PARAMS ((char const *, char **, int));
  # endif
  
  #else
  
  # ifndef HAVE_DECL_STRTOL
  "this configure-time declaration test was not run"
  # endif
  # if !HAVE_DECL_STRTOL
  long strtol PARAMS ((char const *, char **, int));
  # endif
  # ifndef HAVE_DECL_STRTOLL
  "this configure-time declaration test was not run"
  # endif
  # if !HAVE_DECL_STRTOLL && HAVE_UNSIGNED_LONG_LONG
  long long strtoll PARAMS ((char const *, char **, int));
  # endif
  #endif
  
  #ifdef UNSIGNED
  # undef HAVE_LONG_LONG
  # define HAVE_LONG_LONG HAVE_UNSIGNED_LONG_LONG
  # define INT uintmax_t
  # define strtoimax strtoumax
  # define strtol strtoul
  # define strtoll strtoull
  #else
  # define INT intmax_t
  #endif
  
  INT
  strtoimax (char const *ptr, char **endptr, int base)
  {
  #if HAVE_LONG_LONG
    verify (size_is_that_of_long_or_long_long,
  	  (sizeof (INT) == sizeof (long)
  	   || sizeof (INT) == sizeof (long long)));
  
    if (sizeof (INT) != sizeof (long))
      return strtoll (ptr, endptr, base);
  #else
    verify (size_is_that_of_long,
  	  sizeof (INT) == sizeof (long));
  #endif
  
    return strtol (ptr, endptr, base);
  }
  