x11-xserver-utils/xedit/strcasecmp.c

41 lines
882 B
C

/* $XFree86: xc/programs/xedit/strcasecmp.c,v 1.1 1999/06/14 02:38:07 dawes Exp $ */
#include <ctype.h>
#include <sys/types.h>
#ifndef LISP
#include "xedit.h"
#endif
/* Just like the BSD version. It assumes that tolower() is ANSI-compliant */
int
strcasecmp(const char *s1, const char *s2)
{
const unsigned char *us1 = (const unsigned char *)s1;
const unsigned char *us2 = (const unsigned char *)s2;
while (tolower(*us1) == tolower(*us2++))
if (*us1++ == '\0')
return 0;
return tolower(*us1) - tolower(*--us2);
}
int
strncasecmp(const char *s1, const char *s2, size_t n)
{
if (n != 0) {
const unsigned char *us1 = (const unsigned char *)s1;
const unsigned char *us2 = (const unsigned char *)s2;
do {
if (tolower(*us1) != tolower(*us2++))
return tolower(*us1) - tolower(*--us2);
if (*us1++ == '\0')
break;
} while (--n != 0);
}
return 0;
}