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/*
* Copyright (C) 2002 Manuel Novoa III
* Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include "_string.h"
#include <ctype.h>
#include <locale.h>
#ifdef __UCLIBC_HAS_XLOCALE__
extern int __strncasecmp_l (__const char *__s1, __const char *__s2,
size_t __n, __locale_t __loc)
__THROW __attribute_pure__ __nonnull ((1, 2, 4)) attribute_hidden;
extern int __wcsncasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
size_t __n, __locale_t __loc) __THROW attribute_hidden;
#endif
#ifdef WANT_WIDE
# define strncasecmp wcsncasecmp
# define __strncasecmp __wcsncasecmp
# define strncasecmp_l wcsncasecmp_l
# define __strncasecmp_l __wcsncasecmp_l
# ifdef __UCLIBC_DO_XLOCALE
# define TOLOWER(C) __towlower_l((C), locale_arg)
extern wint_t __towlower_l (wint_t __wc, __locale_t __locale) __THROW attribute_hidden;
# else
# define TOLOWER(C) __towlower((C))
# endif
#else
# ifdef __UCLIBC_DO_XLOCALE
# define TOLOWER(C) __tolower_l((C), locale_arg)
# else
# define TOLOWER(C) __tolower((C))
# endif
#endif
#if defined(__UCLIBC_HAS_XLOCALE__) && !defined(__UCLIBC_DO_XLOCALE)
int attribute_hidden __strncasecmp(register const Wchar *s1, register const Wchar *s2, size_t n)
{
return __strncasecmp_l(s1, s2, n, __UCLIBC_CURLOCALE);
}
strong_alias(__strncasecmp,strncasecmp)
#else /* defined(__UCLIBC_HAS_XLOCALE__) && !defined(__UCLIBC_DO_XLOCALE) */
int attribute_hidden __UCXL(strncasecmp)(register const Wchar *s1, register const Wchar *s2,
size_t n __LOCALE_PARAM )
{
#ifdef WANT_WIDE
while (n && ((*s1 == *s2) || (TOLOWER(*s1) == TOLOWER(*s2)))) {
if (!*s1++) {
return 0;
}
++s2;
--n;
}
return (n == 0)
? 0
: ((((Wuchar)TOLOWER(*s1)) < ((Wuchar)TOLOWER(*s2))) ? -1 : 1);
/* TODO -- should wide cmp funcs do wchar or Wuchar compares? */
#else
int r = 0;
while ( n
&& ((s1 == s2) ||
!(r = ((int)( TOLOWER(*((unsigned char *)s1))))
- TOLOWER(*((unsigned char *)s2))))
&& (--n, ++s2, *s1++));
return r;
#endif
}
__UCXL_ALIAS(strncasecmp)
#endif /* defined(__UCLIBC_HAS_XLOCALE__) && !defined(__UCLIBC_DO_XLOCALE) */
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