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    1: /* case insensitive memory block comparison
    2: 
    3:   Copyright (C) 1996,1998 Free Software Foundation, Inc.
    4: 
    5:   This file is part of Gforth.
    6: 
    7:   Gforth is free software; you can redistribute it and/or
    8:   modify it under the terms of the GNU General Public License
    9:   as published by the Free Software Foundation; either version 2
   10:   of the License, or (at your option) any later version.
   11: 
   12:   This program 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 this program; if not, write to the Free Software
   19:   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   20: */
   21: 
   22: /* this is mainly useful for testing for equality; to get a version
   23:    that delivers the right < and > results in any locale, you would
   24:    have to work with strcoll and some hackery */
   25: 
   26: #include <ctype.h>
   27: #include "forth.h"
   28: 
   29: Cell memcasecmp(const Char *s1, const Char *s2, Cell n)
   30: {
   31:   Cell i;
   32: 
   33:   for (i=0; i<n; i++) {
   34:     Char c1=toupper(s1[i]);
   35:     Char c2=toupper(s2[i]);
   36:     if (c1 != c2)
   37:       return c1-c2;
   38:   }
   39:   return 0;
   40: }