1 /* Copyright (C) 2011 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 #include <math_private.h>
29 if (__builtin_expect (fabs (x
) > 1.0, 0) && _LIB_VERSION
!= _IEEE_
)
32 feraiseexcept (FE_INVALID
);
33 return __kernel_standard (x
, x
, 1);
36 return __ieee754_acos (x
);
38 weak_alias (__acos
, acos
)
40 strong_alias (__acos
, __acosl
)
41 weak_alias (__acos
, acosl
)