From ea38f4d89c9698895b1cf53a5946429dc1d8bbaa Mon Sep 17 00:00:00 2001 From: Sergey Cherkashin <4erkashin@list.ru> Date: Tue, 3 Oct 2017 15:26:34 +0300 Subject: math: add exception handling functionality According to standards SVID and SYSV. Modified lgamma calling in case when 'signgam' variable should not be used. Signed-off-by: Waldemar Brodkorb --- libm/w_asin.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 libm/w_asin.c (limited to 'libm/w_asin.c') diff --git a/libm/w_asin.c b/libm/w_asin.c new file mode 100644 index 000000000..3dafd8f30 --- /dev/null +++ b/libm/w_asin.c @@ -0,0 +1,39 @@ +/* Copyright (C) 2011-2016 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 2011. + + 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 + . */ + +#include +#include "math_private.h" +#if __UCLIBC_HAS_FENV__ +#include +#endif +/* wrapper asin */ +double +asin (double x) +{ +#if __UCLIBC_HAS_FENV__ + if (__builtin_expect (isgreater (fabs (x), 1.0), 0) + && _LIB_VERSION != _IEEE_) + { + /* asin(|x|>1) */ + feraiseexcept (FE_INVALID); + return __kernel_standard (x, x, 2); + } +#endif + return __ieee754_asin (x); +} +libm_hidden_def(asin) -- cgit v1.2.3