[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/math/s_cacoshl.c b/ap/libc/glibc/glibc-2.23/math/s_cacoshl.c
new file mode 100644
index 0000000..c512c2a
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/math/s_cacoshl.c
@@ -0,0 +1,90 @@
+/* Return arc hyperbole cosine for long double value.
+ Copyright (C) 1997-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ 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 <complex.h>
+#include <math.h>
+#include <math_private.h>
+
+
+__complex__ long double
+__cacoshl (__complex__ long double x)
+{
+ __complex__ long double res;
+ int rcls = fpclassify (__real__ x);
+ int icls = fpclassify (__imag__ x);
+
+ if (rcls <= FP_INFINITE || icls <= FP_INFINITE)
+ {
+ if (icls == FP_INFINITE)
+ {
+ __real__ res = HUGE_VALL;
+
+ if (rcls == FP_NAN)
+ __imag__ res = __nanl ("");
+ else
+ __imag__ res = __copysignl ((rcls == FP_INFINITE
+ ? (__real__ x < 0.0
+ ? M_PIl - M_PI_4l : M_PI_4l)
+ : M_PI_2l), __imag__ x);
+ }
+ else if (rcls == FP_INFINITE)
+ {
+ __real__ res = HUGE_VALL;
+
+ if (icls >= FP_ZERO)
+ __imag__ res = __copysignl (signbit (__real__ x) ? M_PIl : 0.0,
+ __imag__ x);
+ else
+ __imag__ res = __nanl ("");
+ }
+ else
+ {
+ __real__ res = __nanl ("");
+ __imag__ res = __nanl ("");
+ }
+ }
+ else if (rcls == FP_ZERO && icls == FP_ZERO)
+ {
+ __real__ res = 0.0;
+ __imag__ res = __copysignl (M_PI_2l, __imag__ x);
+ }
+ else
+ {
+ __complex__ long double y;
+
+ __real__ y = -__imag__ x;
+ __imag__ y = __real__ x;
+
+ y = __kernel_casinhl (y, 1);
+
+ if (signbit (__imag__ x))
+ {
+ __real__ res = __real__ y;
+ __imag__ res = -__imag__ y;
+ }
+ else
+ {
+ __real__ res = -__real__ y;
+ __imag__ res = __imag__ y;
+ }
+ }
+
+ return res;
+}
+weak_alias (__cacoshl, cacoshl)