1/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
4
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.
9
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.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19
20/*
21 * wrapper exp10(x)
22 */
23
24#include <math.h>
25#include <math_private.h>
26
27double
28__exp10 (double x)
29{
30 double z = __ieee754_exp10 (x);
31 if (__builtin_expect (!isfinite (z) || z == 0, 0)
32 && isfinite (x) && _LIB_VERSION != _IEEE_)
33 /* exp10 overflow (46) if x > 0, underflow (47) if x < 0. */
34 return __kernel_standard (x, x, 46 + !!signbit (x));
35
36 return z;
37}
38weak_alias (__exp10, exp10)
39strong_alias (__exp10, __pow10)
40weak_alias (__pow10, pow10)
41#ifdef NO_LONG_DOUBLE
42strong_alias (__exp10, __exp10l)
43weak_alias (__exp10, exp10l)
44strong_alias (__exp10l, __pow10l)
45weak_alias (__pow10l, pow10l)
46#endif
47