diff options
Diffstat (limited to 'wcsmbs/wcswcs.c')
-rw-r--r-- | wcsmbs/wcswcs.c | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/wcsmbs/wcswcs.c b/wcsmbs/wcswcs.c deleted file mode 100644 index 4b1f2ace54..0000000000 --- a/wcsmbs/wcswcs.c +++ /dev/null @@ -1,97 +0,0 @@ -/* Copyright (C) 1995 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 Library General Public License as -published by the Free Software Foundation; either version 2 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 -Library General Public License for more details. - -You should have received a copy of the GNU Library General Public -License along with the GNU C Library; see the file COPYING.LIB. If -not, write to the Free Software Foundation, Inc., 675 Mass Ave, -Cambridge, MA 02139, USA. */ - -/* - * The original strstr() file contains the following comment: - * - * 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 */ - -#include <wcstr.h> - -wchar_t * -wcswcs (haystack, needle) - const wchar_t *haystack; - const wchar_t *needle; -{ - register wchar_t b, c; - - if ((b = *needle) != L'\0') - { - haystack--; /* possible ANSI violation */ - do - if ((c = *++haystack) == L'\0') - goto ret0; - while (c != b); - - if (!(c = *++needle)) - goto foundneedle; - ++needle; - goto jin; - - for (;;) - { - register wchar_t a; - register const wchar_t *rhaystack, *rneedle; - - do - { - if (!(a = *++haystack)) - goto ret0; - if (a == b) - break; - if ((a = *++haystack) == L'\0') - goto ret0; -shloop: ; - } - while (a != b); - -jin: if (!(a = *++haystack)) - goto ret0; - - if (a != c) - goto shloop; - - if (*(rhaystack = haystack-- + 1) == (a = *(rneedle = needle))) - do - { - if (a == L'\0') - goto foundneedle; - if (*++rhaystack != (a = *++needle)) - break; - if (a == L'\0') - goto foundneedle; - } - while (*++rhaystack == (a = *++needle)); - - needle=rneedle; /* took the register-poor approach */ - - if (a == L'\0') - break; - } - } -foundneedle: - return (wchar_t*)haystack; -ret0: - return NULL; -} |