/* Copyright (C) 2011, 2012 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 <fenv.h> #include <math.h> #include <math_private.h> /* wrapper acosf */ float __acosf (float x) { if (__builtin_expect (isgreater (fabsf (x), 1.0f), 0) && _LIB_VERSION != _IEEE_) { /* acos(|x|>1) */ feraiseexcept (FE_INVALID); return __kernel_standard_f (x, x, 101); } return __ieee754_acosf (x); } weak_alias (__acosf, acosf)