diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2004-03-15 08:55:28 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-03-15 08:55:28 +0000 |
| commit | 4f514b6bf2bdb23a144bf9c77ad34cde58f8c607 (patch) | |
| tree | 70f106b455a03fa5b84d1fabe3428c4ebdc5e273 /sysdeps | |
| parent | 58101473df84b017e23c11ce0ccfb74a0766eb7a (diff) | |
| download | glibc-4f514b6bf2bdb23a144bf9c77ad34cde58f8c607.zip glibc-4f514b6bf2bdb23a144bf9c77ad34cde58f8c607.tar.gz glibc-4f514b6bf2bdb23a144bf9c77ad34cde58f8c607.tar.bz2 | |
Update.
2004-03-15 Ulrich Drepper <drepper@redhat.com>
* sysdeps/generic/strcasestr.c (__strcasestr): Optimize use of
tolower function.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/generic/strcasestr.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/sysdeps/generic/strcasestr.c b/sysdeps/generic/strcasestr.c index 6ceb2d7..6327dfa 100644 --- a/sysdeps/generic/strcasestr.c +++ b/sysdeps/generic/strcasestr.c @@ -1,5 +1,5 @@ /* Return the offset of one string within another. - Copyright (C) 1994,1996,1997,1998,1999,2000 Free Software Foundation, Inc. + Copyright (C) 1994, 1996-2000, 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 @@ -36,6 +36,13 @@ # include <string.h> #endif +#ifdef _LIBC +# include <locale/localeinfo.h> +# define TOLOWER(c) __tolower_l (c, loc) +#else +# define TOLOWER(c) _tolower (c) +#endif + typedef unsigned chartype; #undef strcasestr @@ -48,11 +55,14 @@ __strcasestr (phaystack, pneedle) { register const unsigned char *haystack, *needle; register chartype b, c; +#ifdef _LIBC + __locale_t loc = _NL_CURRENT_LOCALE; +#endif haystack = (const unsigned char *) phaystack; needle = (const unsigned char *) pneedle; - b = _tolower (*needle); + b = TOLOWER (*needle); if (b != '\0') { haystack--; /* possible ANSI violation */ @@ -62,9 +72,9 @@ __strcasestr (phaystack, pneedle) if (c == '\0') goto ret0; } - while (_tolower (c) != (int) b); + while (TOLOWER (c) != (int) b); - c = _tolower (*++needle); + c = TOLOWER (*++needle); if (c == '\0') goto foundneedle; ++needle; @@ -80,7 +90,7 @@ __strcasestr (phaystack, pneedle) a = *++haystack; if (a == '\0') goto ret0; - if (_tolower (a) == (int) b) + if (TOLOWER (a) == (int) b) break; a = *++haystack; if (a == '\0') @@ -88,34 +98,34 @@ __strcasestr (phaystack, pneedle) shloop: ; } - while (_tolower (a) != (int) b); + while (TOLOWER (a) != (int) b); jin: a = *++haystack; if (a == '\0') goto ret0; - if (_tolower (a) != (int) c) + if (TOLOWER (a) != (int) c) goto shloop; rhaystack = haystack-- + 1; rneedle = needle; - a = _tolower (*rneedle); + a = TOLOWER (*rneedle); - if (_tolower (*rhaystack) == (int) a) + if (TOLOWER (*rhaystack) == (int) a) do { if (a == '\0') goto foundneedle; ++rhaystack; - a = _tolower (*++needle); - if (_tolower (*rhaystack) != (int) a) + a = TOLOWER (*++needle); + if (TOLOWER (*rhaystack) != (int) a) break; if (a == '\0') goto foundneedle; ++rhaystack; - a = _tolower (*++needle); + a = TOLOWER (*++needle); } - while (_tolower (*rhaystack) == (int) a); + while (TOLOWER (*rhaystack) == (int) a); needle = rneedle; /* took the register-poor approach */ |