File: strcasecmp.c

package info (click to toggle)
x11-apps 7.7%2B8
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 22,272 kB
  • sloc: ansic: 89,886; sh: 21,460; lisp: 8,407; makefile: 961; lex: 162; yacc: 82; xml: 31
file content (40 lines) | stat: -rw-r--r-- 882 bytes parent folder | download | duplicates (9)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/* $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;
}