[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/math/w_log1p.c b/ap/libc/glibc/glibc-2.23/math/w_log1p.c
new file mode 100644
index 0000000..282c85c
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/math/w_log1p.c
@@ -0,0 +1,41 @@
+/* Wrapper for __log1p that handles setting errno.
+ Copyright (C) 2015-2016 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/>. */
+
+#include <errno.h>
+#include <math.h>
+#include <math_private.h>
+
+double
+__w_log1p (double x)
+{
+ if (__glibc_unlikely (islessequal (x, -1.0)))
+ {
+ if (x == -1.0)
+ __set_errno (ERANGE);
+ else
+ __set_errno (EDOM);
+ }
+
+ return __log1p (x);
+}
+weak_alias (__w_log1p, log1p)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__w_log1p, __log1pl)
+weak_alias (__w_log1p, log1pl)
+#endif