[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/wcsmbs/wcsstr.c b/ap/libc/glibc/glibc-2.22/wcsmbs/wcsstr.c
new file mode 100644
index 0000000..a62c29e
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/wcsmbs/wcsstr.c
@@ -0,0 +1,99 @@
+/* Copyright (C) 1995-2015 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, see
+ <http://www.gnu.org/licenses/>. */
+
+/*
+ * 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 <wchar.h>
+
+wchar_t *
+wcsstr (haystack, needle)
+ const wchar_t *haystack;
+ const wchar_t *needle;
+{
+ 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 (;;)
+ {
+ wchar_t a;
+ 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;
+}
+/* This alias is for backward compatibility with drafts of the ISO C
+ standard. Unfortunately the Unix(TM) standard requires this name. */
+weak_alias (wcsstr, wcswcs)