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author | Jakub Jelinek <jakub@redhat.com> | 2007-07-12 18:26:36 +0000 |
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committer | Jakub Jelinek <jakub@redhat.com> | 2007-07-12 18:26:36 +0000 |
commit | 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch) | |
tree | 2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /string/strncase.c | |
parent | 7d58530341304d403a6626d7f7a1913165fe2f32 (diff) | |
download | glibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.zip glibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.gz glibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.bz2 |
2.5-18.1
Diffstat (limited to 'string/strncase.c')
-rw-r--r-- | string/strncase.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/string/strncase.c b/string/strncase.c new file mode 100644 index 0000000..a55aaf6 --- /dev/null +++ b/string/strncase.c @@ -0,0 +1,76 @@ +/* Compare at most N characters of two strings without taking care for + the case. + Copyright (C) 1992, 1996, 1997, 2001, 2004 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <string.h> +#include <ctype.h> + +#ifndef weak_alias +# define __strncasecmp strncasecmp +# define TOLOWER(Ch) tolower (Ch) +#else +# include <locale/localeinfo.h> +# ifdef USE_IN_EXTENDED_LOCALE_MODEL +# define __strncasecmp __strncasecmp_l +# endif +# define TOLOWER(Ch) __tolower_l ((Ch), loc) +#endif + +#ifdef USE_IN_EXTENDED_LOCALE_MODEL +# define LOCALE_PARAM , loc +# define LOCALE_PARAM_DECL __locale_t loc; +#else +# define LOCALE_PARAM +# define LOCALE_PARAM_DECL +#endif + +/* Compare no more than N 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 +__strncasecmp (s1, s2, n LOCALE_PARAM) + const char *s1; + const char *s2; + size_t n; + LOCALE_PARAM_DECL +{ +#if defined _LIBC && !defined USE_IN_EXTENDED_LOCALE_MODEL + __locale_t loc = _NL_CURRENT_LOCALE; +#endif + const unsigned char *p1 = (const unsigned char *) s1; + const unsigned char *p2 = (const unsigned char *) s2; + int result; + + if (p1 == p2 || n == 0) + return 0; + + while ((result = TOLOWER (*p1) - TOLOWER (*p2++)) == 0) + if (*p1++ == '\0' || --n == 0) + break; + + return result; +} +#ifndef __strncasecmp +weak_alias (__strncasecmp, strncasecmp) +#endif |