[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/locale/strlen-hash.h b/ap/libc/glibc/glibc-2.23/locale/strlen-hash.h
new file mode 100644
index 0000000..a4c3527
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/locale/strlen-hash.h
@@ -0,0 +1,51 @@
+/* Implements hashing function for string with known length.
+ Copyright (C) 1996-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+ 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/>. */
+
+#include <sys/types.h>
+
+/* We assume to have `size_t' value with at least 32 bits. */
+#define HASHWORDBITS 32
+
+
+/* Defines the so called `hashpjw' function by P.J. Weinberger
+ [see Aho/Sethi/Ullman, COMPILERS: Principles, Techniques and Tools,
+ 1986, 1987 Bell Telephone Laboratories, Inc.] */
+static size_t hash_string (const char *__str_param, size_t __len);
+
+static inline size_t
+hash_string (const char *str_param, size_t len)
+{
+ size_t hval, g;
+ const char *end_str = str_param + len;
+
+ /* Compute the hash value for the given string. */
+ hval = len;
+ while (str_param != end_str)
+ {
+ hval <<= 4;
+ hval += (size_t) *str_param++;
+ g = hval & ((size_t) 0xf << (HASHWORDBITS - 4));
+ if (g != 0)
+ {
+ hval ^= g >> (HASHWORDBITS - 8);
+ hval ^= g;
+ }
+ }
+ return hval;
+}