minix/lib/libc/wchar/wcscasecmp.c
2010-04-19 15:20:24 +00:00

37 lines
704 B
C

/*
* Copyright (C) 2006 Aleksey Cheusov
*
* This material is provided "as is", with absolutely no warranty expressed
* or implied. Any use is at your own risk.
*
* Permission to use or copy this software for any purpose is hereby granted
* without fee. Permission to modify the code and to distribute modified
* code is also granted without any restrictions.
*/
#include <assert.h>
#include <wchar.h>
#include <wctype.h>
int
wcscasecmp(const wchar_t *s1, const wchar_t *s2)
{
assert(s1 != NULL);
assert(s2 != NULL);
for (;;) {
int lc1 = towlower(*s1);
int lc2 = towlower(*s2);
int diff = lc1 - lc2;
if (diff != 0)
return diff;
if (!lc1)
return 0;
++s1;
++s2;
}
}