summaryrefslogtreecommitdiff
path: root/libm/w_asinf.c
blob: ddc1c0f5428a52e45e0931385eab958adbff8bca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@gmail.com>, 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
   <http://www.gnu.org/licenses/>.  */

#include <math.h>
#include "math_private.h"
#if defined(__UCLIBC_HAS_FENV__)
#include <fenv.h>
#endif
/* wrapper asinf */
float
asinf (float x)
{
#if defined(__UCLIBC_HAS_FENV__)
  if (__builtin_expect (isgreater (fabsf (x), 1.0f), 0)
      && _LIB_VERSION != _IEEE_)
    {
      /* asin(|x|>1) */
      feraiseexcept (FE_INVALID);
      return __kernel_standard_f (x, x, 102);
    }
#endif
  return (float) __ieee754_asin ((double)x);
}