From 167d5e33fcb821e51e2f9dcf460591737c3c7972 Mon Sep 17 00:00:00 2001 From: "Peter S. Mazinger" Date: Tue, 3 Jan 2006 14:50:18 +0000 Subject: Complete split of all the string functions. Hope haven't broken too much. wcscoll/strcoll needs some love ... --- libc/string/memmem.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 libc/string/memmem.c (limited to 'libc/string/memmem.c') diff --git a/libc/string/memmem.c b/libc/string/memmem.c new file mode 100644 index 000000000..a42176181 --- /dev/null +++ b/libc/string/memmem.c @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2002 Manuel Novoa III + * Copyright (C) 2000-2005 Erik Andersen + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include "_string.h" + +void attribute_hidden *__memmem(const void *haystack, size_t haystacklen, + const void *needle, size_t needlelen) +{ + register const char *ph; + register const char *pn; + const char *plast; + size_t n; + + if (needlelen == 0) { + return (void *) haystack; + } + + if (haystacklen >= needlelen) { + ph = (const char *) haystack; + pn = (const char *) needle; + plast = ph + (haystacklen - needlelen); + + do { + n = 0; + while (ph[n] == pn[n]) { + if (++n == needlelen) { + return (void *) ph; + } + } + } while (++ph <= plast); + } + + return NULL; +} + +strong_alias(__memmem,memmem) -- cgit v1.2.3