libchill/eqstr.c

   1 /* Implement string-related runtime actions for CHILL.
   2    Copyright (C) 1992,1993 Free Software Foundation, Inc.
   3    Author: Bill Cox
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU CC 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
  18 along with GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 extern void cause_exception (char *exname, char *file, int lineno);
  22
  23 /*
  24  * function __eqstring
  25  *
  26  * parameters:
  27  *     S1 - pointer to left string
  28  *     LEN1 - length of left string
  29  *     S2 - pointer to right string
  30  *     LEN2 - length of right string
  31  *
  32  * returns:
  33  *     1 if strings equal, 0 if not
  34  *
  35  * exceptions:
  36  *     none
  37  *
  38  * abstract:
  39  *     compares two character strings for equality
  40  *
  41  */
  42
  43 int
  44 __eqstring (s1, len1, s2, len2)
  45      char *s1;
  46      int len1;
  47      char *s2;
  48      int len2;
  49 {
  50   if (len1 != len2)
  51     return 0;
  52
  53   return ! memcmp (s1, s2, len1);
  54 }