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-rw-r--r--string/strcasestr.c142
1 files changed, 0 insertions, 142 deletions
diff --git a/string/strcasestr.c b/string/strcasestr.c
deleted file mode 100644
index 1dde43c..0000000
--- 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 <config.h>
-#endif
-
-#include <ctype.h>
-
-#if defined _LIBC || defined HAVE_STRING_H
-# include <string.h>
-#endif
-
-#ifdef _LIBC
-# include <locale/localeinfo.h>
-# 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)