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| author | Paul Eggert <eggert@cs.ucla.edu> | 2006-07-09 16:59:05 +0000 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2006-07-09 16:59:05 +0000 |
| commit | cb052e4f6cc723bc408f32963e921705f3286c94 (patch) | |
| tree | d6f6172f7cff8f5c44f9ae557a525e4b1baf277b /lib/memcasecmp.c | |
| parent | 28edf6a75ef4f95e18da5b506bdcf122a53ca3ec (diff) | |
| download | coreutils-cb052e4f6cc723bc408f32963e921705f3286c94.tar.xz | |
Update from gnulib.
Diffstat (limited to 'lib/memcasecmp.c')
| -rw-r--r-- | lib/memcasecmp.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/lib/memcasecmp.c b/lib/memcasecmp.c index b0a492590..9aebb3e9c 100644 --- a/lib/memcasecmp.c +++ b/lib/memcasecmp.c @@ -1,5 +1,5 @@ /* Case-insensitive buffer comparator. - Copyright (C) 1996, 1997, 2000, 2003 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 2000, 2003, 2006 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -21,23 +21,11 @@ # include <config.h> #endif -#include <ctype.h> - -#if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII) -# define IN_CTYPE_DOMAIN(Char) 1 -#else -# define IN_CTYPE_DOMAIN(Char) isascii (Char) -#endif -#define ISLOWER(Char) (IN_CTYPE_DOMAIN (Char) && islower (Char)) - -#if _LIBC || STDC_HEADERS -# define TOUPPER(Char) toupper (Char) -#else -# define TOUPPER(Char) (ISLOWER (Char) ? toupper (Char) : (Char)) -#endif - #include "memcasecmp.h" +#include <ctype.h> +#include <limits.h> + /* Like memcmp, but ignore differences in case. Convert to upper case (not lower) before comparing so that join -i works with sort -f. */ @@ -52,7 +40,10 @@ memcasecmp (const void *vs1, const void *vs2, size_t n) { unsigned char u1 = s1[i]; unsigned char u2 = s2[i]; - int diff = TOUPPER (u1) - TOUPPER (u2); + int U1 = toupper (u1); + int U2 = toupper (u2); + int diff = (UCHAR_MAX <= INT_MAX ? U1 - U2 + : U1 < U2 ? -1 : U2 < U1); if (diff) return diff; } |