/* Copyright (C) 2011 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 static const double o_threshold= 7.09782712893383973096e+02, /* 0x40862E42, 0xFEFA39EF */ u_threshold= -7.45133219101941108420e+02; /* 0xc0874910, 0xD52D3051 */ /* wrapper exp */ double __exp (double x) { if (__builtin_expect (x > o_threshold, 0)) { if (_LIB_VERSION != _IEEE_) return __kernel_standard_f (x, x, 6); } else if (__builtin_expect (x < u_threshold, 0)) { if (_LIB_VERSION != _IEEE_) return __kernel_standard_f (x, x, 7); } return __ieee754_exp (x); } hidden_def (__exp) weak_alias (__exp, exp) #ifdef NO_LONG_DOUBLE strong_alias (__exp, __expl) weak_alias (__exp, expl) #endif