From a334319f6530564d22e775935d9c91663623a1b4 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 22 Dec 2004 20:10:10 +0000 Subject: (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. --- string/strcasestr.c | 142 ---------------------------------------------------- 1 file changed, 142 deletions(-) delete mode 100644 string/strcasestr.c (limited to 'string/strcasestr.c') diff --git a/string/strcasestr.c b/string/strcasestr.c deleted file mode 100644 index 1dde43c606..0000000000 --- a/string/strcasestr.c +++ /dev/null @@ -1,142 +0,0 @@ -/* Return the offset of one string within another. - 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 - 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. */ - -/* - * My personal strstr() implementation that beats most other algorithms. - * Until someone tells me otherwise, I assume that this is the - * fastest implementation of strstr() in C. - * I deliberately chose not to comment it. You should have at least - * as much fun trying to understand it, as I had to write it :-). - * - * Stephen R. van den Berg, berg@pool.informatik.rwth-aachen.de */ - -#if HAVE_CONFIG_H -# include -#endif - -#include - -#if defined _LIBC || defined HAVE_STRING_H -# include -#endif - -#ifdef _LIBC -# include -# define TOLOWER(c) __tolower_l ((unsigned char) c, loc) -#else -# define TOLOWER(c) _tolower (c) -#endif - -typedef unsigned chartype; - -#undef strcasestr -#undef __strcasestr - -char * -__strcasestr (phaystack, pneedle) - const char *phaystack; - const char *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); - if (b != '\0') - { - haystack--; /* possible ANSI violation */ - do - { - c = *++haystack; - if (c == '\0') - goto ret0; - } - while (TOLOWER (c) != (int) b); - - c = TOLOWER (*++needle); - if (c == '\0') - goto foundneedle; - ++needle; - goto jin; - - for (;;) - { - register chartype a; - register const unsigned char *rhaystack, *rneedle; - - do - { - a = *++haystack; - if (a == '\0') - goto ret0; - if (TOLOWER (a) == (int) b) - break; - a = *++haystack; - if (a == '\0') - goto ret0; -shloop: - ; - } - while (TOLOWER (a) != (int) b); - -jin: a = *++haystack; - if (a == '\0') - goto ret0; - - if (TOLOWER (a) != (int) c) - goto shloop; - - rhaystack = haystack-- + 1; - rneedle = needle; - a = TOLOWER (*rneedle); - - if (TOLOWER (*rhaystack) == (int) a) - do - { - if (a == '\0') - goto foundneedle; - ++rhaystack; - a = TOLOWER (*++needle); - if (TOLOWER (*rhaystack) != (int) a) - break; - if (a == '\0') - goto foundneedle; - ++rhaystack; - a = TOLOWER (*++needle); - } - while (TOLOWER (*rhaystack) == (int) a); - - needle = rneedle; /* took the register-poor approach */ - - if (a == '\0') - break; - } - } -foundneedle: - return (char*) haystack; -ret0: - return 0; -} - -weak_alias (__strcasestr, strcasestr) -- cgit 1.4.1