[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/math/s_cacos.c b/ap/libc/glibc/glibc-2.22/math/s_cacos.c
new file mode 100644
index 0000000..2cacaf5
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/math/s_cacos.c
@@ -0,0 +1,58 @@
+/* Return cosine of complex double value.
+ Copyright (C) 1997-2015 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>
+
+__complex__ double
+__cacos (__complex__ double x)
+{
+ __complex__ double y;
+ __complex__ double res;
+ int rcls = fpclassify (__real__ x);
+ int icls = fpclassify (__imag__ x);
+
+ if (rcls <= FP_INFINITE || icls <= FP_INFINITE
+ || (rcls == FP_ZERO && icls == FP_ZERO))
+ {
+ y = __casin (x);
+
+ __real__ res = (double) M_PI_2 - __real__ y;
+ if (__real__ res == 0.0)
+ __real__ res = 0.0;
+ __imag__ res = -__imag__ y;
+ }
+ else
+ {
+ __real__ y = -__imag__ x;
+ __imag__ y = __real__ x;
+
+ y = __kernel_casinh (y, 1);
+
+ __real__ res = __imag__ y;
+ __imag__ res = __real__ y;
+ }
+
+ return res;
+}
+weak_alias (__cacos, cacos)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__cacos, __cacosl)
+weak_alias (__cacos, cacosl)
+#endif