diff options
Diffstat (limited to 'wcsmbs/wcsncase.c')
-rw-r--r-- | wcsmbs/wcsncase.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/wcsmbs/wcsncase.c b/wcsmbs/wcsncase.c new file mode 100644 index 0000000000..c5b10c57a4 --- /dev/null +++ b/wcsmbs/wcsncase.c @@ -0,0 +1,55 @@ +/* Compare at most N wide characters of two strings without taking care + for the case. + Copyright (C) 1992, 1996, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <wchar.h> +#include <wctype.h> + +#ifndef weak_alias +# define __wcsncasecmp wcsncasecmp +#endif + +/* Compare no more than N wide characters of S1 and S2, + ignoring case, returning less than, equal to or + greater than zero if S1 is lexicographically less + than, equal to or greater than S2. */ +int +__wcsncasecmp (s1, s2, n) + const wchar_t *s1; + const wchar_t *s2; + size_t n; +{ + wint_t c1, c2; + + if (s1 == s2 || n == 0) + return 0; + + do + { + c1 = (wint_t) towlower (*s1++); + c2 = (wint_t) towlower (*s2++); + if (c1 == L'\0' || c1 != c2) + return c1 - c2; + } while (--n > 0); + + return c1 - c2; +} +#ifdef weak_alias +weak_alias (__wcsncasecmp, wcsncasecmp) +#endif |