about summary refs log tree commit diff
path: root/string/strcasestr.c
diff options
context:
space:
mode:
Diffstat (limited to 'string/strcasestr.c')
-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 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 <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)