[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/wcsmbs/wmemcmp.c b/ap/libc/glibc/glibc-2.23/wcsmbs/wmemcmp.c
new file mode 100644
index 0000000..83594d1
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/wcsmbs/wmemcmp.c
@@ -0,0 +1,83 @@
+/* Copyright (C) 1996-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 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 <wchar.h>
+
+#ifndef WMEMCMP
+# define WMEMCMP wmemcmp
+#endif
+
+int
+WMEMCMP (const wchar_t *s1, const wchar_t *s2, size_t n)
+{
+ wchar_t c1;
+ wchar_t c2;
+
+ while (n >= 4)
+ {
+ c1 = s1[0];
+ c2 = s2[0];
+ if (c1 - c2 != 0)
+ return c1 > c2 ? 1 : -1;
+ c1 = s1[1];
+ c2 = s2[1];
+ if (c1 - c2 != 0)
+ return c1 > c2 ? 1 : -1;
+ c1 = s1[2];
+ c2 = s2[2];
+ if (c1 - c2 != 0)
+ return c1 > c2 ? 1 : -1;
+ c1 = s1[3];
+ c2 = s2[3];
+ if (c1 - c2 != 0)
+ return c1 > c2 ? 1 : -1;
+ s1 += 4;
+ s2 += 4;
+ n -= 4;
+ }
+
+ if (n > 0)
+ {
+ c1 = s1[0];
+ c2 = s2[0];
+ if (c1 - c2 != 0)
+ return c1 > c2 ? 1 : -1;
+ ++s1;
+ ++s2;
+ --n;
+ }
+ if (n > 0)
+ {
+ c1 = s1[0];
+ c2 = s2[0];
+ if (c1 - c2 != 0)
+ return c1 > c2 ? 1 : -1;
+ ++s1;
+ ++s2;
+ --n;
+ }
+ if (n > 0)
+ {
+ c1 = s1[0];
+ c2 = s2[0];
+ if (c1 - c2 != 0)
+ return c1 > c2 ? 1 : -1;
+ }
+
+ return 0;
+}