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 /* As a special exception, if you link this library with other files,
  22    some of which are compiled with GCC, to produce an executable,
  23    this library does not by itself cause the resulting executable
  24    to be covered by the GNU General Public License.
  25    This exception does not however invalidate any other reasons why
  26    the executable file might be covered by the GNU General Public License.  */
  27
  28 extern void cause_exception (char *exname, char *file, int lineno);
  29
  30 /*
  31  * function __eqstring
  32  *
  33  * parameters:
  34  *     S1 - pointer to left string
  35  *     LEN1 - length of left string
  36  *     S2 - pointer to right string
  37  *     LEN2 - length of right string
  38  *
  39  * returns:
  40  *     1 if strings equal, 0 if not
  41  *
  42  * exceptions:
  43  *     none
  44  *
  45  * abstract:
  46  *     compares two character strings for equality
  47  *
  48  */
  49
  50 int
  51 __eqstring (s1, len1, s2, len2)
  52      char *s1;
  53      int len1;
  54      char *s2;
  55      int len2;
  56 {
  57   if (len1 != len2)
  58     return 0;
  59
  60   return ! memcmp (s1, s2, len1);
  61 }