[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/math/s_csinhf.c b/ap/libc/glibc/glibc-2.23/math/s_csinhf.c
new file mode 100644
index 0000000..a0458cf
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/math/s_csinhf.c
@@ -0,0 +1,166 @@
+/* Complex sine hyperbole function for float.
+ 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 <fenv.h>
+#include <math.h>
+#include <math_private.h>
+#include <float.h>
+
+__complex__ float
+__csinhf (__complex__ float x)
+{
+ __complex__ float retval;
+ int negate = signbit (__real__ x);
+ int rcls = fpclassify (__real__ x);
+ int icls = fpclassify (__imag__ x);
+
+ __real__ x = fabsf (__real__ x);
+
+ if (__glibc_likely (rcls >= FP_ZERO))
+ {
+ /* Real part is finite. */
+ if (__glibc_likely (icls >= FP_ZERO))
+ {
+ /* Imaginary part is finite. */
+ const int t = (int) ((FLT_MAX_EXP - 1) * M_LN2);
+ float sinix, cosix;
+
+ if (__glibc_likely (fabsf (__imag__ x) > FLT_MIN))
+ {
+ __sincosf (__imag__ x, &sinix, &cosix);
+ }
+ else
+ {
+ sinix = __imag__ x;
+ cosix = 1.0f;
+ }
+
+ if (negate)
+ cosix = -cosix;
+
+ if (fabsf (__real__ x) > t)
+ {
+ float exp_t = __ieee754_expf (t);
+ float rx = fabsf (__real__ x);
+ if (signbit (__real__ x))
+ cosix = -cosix;
+ rx -= t;
+ sinix *= exp_t / 2.0f;
+ cosix *= exp_t / 2.0f;
+ if (rx > t)
+ {
+ rx -= t;
+ sinix *= exp_t;
+ cosix *= exp_t;
+ }
+ if (rx > t)
+ {
+ /* Overflow (original real part of x > 3t). */
+ __real__ retval = FLT_MAX * cosix;
+ __imag__ retval = FLT_MAX * sinix;
+ }
+ else
+ {
+ float exp_val = __ieee754_expf (rx);
+ __real__ retval = exp_val * cosix;
+ __imag__ retval = exp_val * sinix;
+ }
+ }
+ else
+ {
+ __real__ retval = __ieee754_sinhf (__real__ x) * cosix;
+ __imag__ retval = __ieee754_coshf (__real__ x) * sinix;
+ }
+
+ math_check_force_underflow_complex (retval);
+ }
+ else
+ {
+ if (rcls == FP_ZERO)
+ {
+ /* Real part is 0.0. */
+ __real__ retval = __copysignf (0.0, negate ? -1.0 : 1.0);
+ __imag__ retval = __nanf ("") + __nanf ("");
+
+ if (icls == FP_INFINITE)
+ feraiseexcept (FE_INVALID);
+ }
+ else
+ {
+ __real__ retval = __nanf ("");
+ __imag__ retval = __nanf ("");
+
+ feraiseexcept (FE_INVALID);
+ }
+ }
+ }
+ else if (__glibc_likely (rcls == FP_INFINITE))
+ {
+ /* Real part is infinite. */
+ if (__glibc_likely (icls > FP_ZERO))
+ {
+ /* Imaginary part is finite. */
+ float sinix, cosix;
+
+ if (__glibc_likely (fabsf (__imag__ x) > FLT_MIN))
+ {
+ __sincosf (__imag__ x, &sinix, &cosix);
+ }
+ else
+ {
+ sinix = __imag__ x;
+ cosix = 1.0f;
+ }
+
+ __real__ retval = __copysignf (HUGE_VALF, cosix);
+ __imag__ retval = __copysignf (HUGE_VALF, sinix);
+
+ if (negate)
+ __real__ retval = -__real__ retval;
+ }
+ else if (icls == FP_ZERO)
+ {
+ /* Imaginary part is 0.0. */
+ __real__ retval = negate ? -HUGE_VALF : HUGE_VALF;
+ __imag__ retval = __imag__ x;
+ }
+ else
+ {
+ /* The addition raises the invalid exception. */
+ __real__ retval = HUGE_VALF;
+ __imag__ retval = __nanf ("") + __nanf ("");
+
+#ifdef FE_INVALID
+ if (icls == FP_INFINITE)
+ feraiseexcept (FE_INVALID);
+#endif
+ }
+ }
+ else
+ {
+ __real__ retval = __nanf ("");
+ __imag__ retval = __imag__ x == 0.0 ? __imag__ x : __nanf ("");
+ }
+
+ return retval;
+}
+#ifndef __csinhf
+weak_alias (__csinhf, csinhf)
+#endif