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static char rcsid[] = "@(#)$Id: istrcmp.c,v 5.1 1992/10/03 22:41:36 syd Exp $";
/*******************************************************************************
* The Elm Mail System - $Revision: 5.1 $ $State: Exp $
*
* Copyright (c) 1988-1992 USENET Community Trust
* Copyright (c) 1986,1987 Dave Taylor
*******************************************************************************
* Bug reports, patches, comments, suggestions should be sent to:
*
* Syd Weinstein, Elm Coordinator
* elm@DSI.COM dsinc!elm
*
*******************************************************************************
* $Log: istrcmp.c,v $
* Revision 5.1 1992/10/03 22:41:36 syd
* Initial checkin as of 2.4 Release at PL0
*
*
******************************************************************************/
/**
**/
#include "headers.h"
#include <ctype.h>
#ifdef BSD
#undef tolower
#endif
int
istrcmp(s1,s2)
register char *s1, *s2;
{
/* case insensitive comparison */
register int d;
for (;;) {
d = ( isupper(*s1) ? tolower(*s1) : *s1 )
- ( isupper(*s2) ? tolower(*s2) : *s2 ) ;
if ( d != 0 || *s1 == '\0' || *s2 == '\0' )
return d;
++s1;
++s2;
}
/*NOTREACHED*/
}
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