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authorPeter S. Mazinger <ps.m@gmx.net>2006-01-03 14:50:18 +0000
committerPeter S. Mazinger <ps.m@gmx.net>2006-01-03 14:50:18 +0000
commit167d5e33fcb821e51e2f9dcf460591737c3c7972 (patch)
tree79acefdd8c9781098adbf77278415eda6365fd3d /libc/string/memmem.c
parentfe68563b9a070fedf117c8738652587945427bb3 (diff)
Complete split of all the string functions. Hope haven't broken too much. wcscoll/strcoll needs some love ...
Diffstat (limited to 'libc/string/memmem.c')
-rw-r--r--libc/string/memmem.c40
1 files changed, 40 insertions, 0 deletions
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 <andersen@uclibc.org>
+ *
+ * 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)