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2b778ceb | 1 | /* Copyright (C) 2011-2021 Free Software Foundation, Inc. |
0ac5ae23 UD |
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 | |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
ecdc196c | 18 | |
4bbac92a UD |
19 | |
20 | /* | |
21 | * wrapper exp10(x) | |
22 | */ | |
23 | ||
9d13fb24 | 24 | #include <math.h> |
9277c064 | 25 | #include <math_private.h> |
813378e9 | 26 | #include <math-svid-compat.h> |
9ac44708 | 27 | #include <libm-alias-double.h> |
4bbac92a | 28 | |
4f3647e4 | 29 | #if LIBM_SVID_COMPAT |
0ac5ae23 UD |
30 | double |
31 | __exp10 (double x) | |
4bbac92a | 32 | { |
0ac5ae23 | 33 | double z = __ieee754_exp10 (x); |
d81f90cc WD |
34 | if (__builtin_expect (!isfinite (z) || z == 0, 0) |
35 | && isfinite (x) && _LIB_VERSION != _IEEE_) | |
0ac5ae23 | 36 | /* exp10 overflow (46) if x > 0, underflow (47) if x < 0. */ |
d81f90cc | 37 | return __kernel_standard (x, x, 46 + !!signbit (x)); |
0ac5ae23 UD |
38 | |
39 | return z; | |
4bbac92a | 40 | } |
9ac44708 | 41 | libm_alias_double (__exp10, exp10) |
4f3647e4 | 42 | # if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27) |
4bbac92a | 43 | strong_alias (__exp10, __pow10) |
5a80d39d | 44 | compat_symbol (libm, __pow10, pow10, GLIBC_2_1); |
4f3647e4 JM |
45 | # endif |
46 | # ifdef NO_LONG_DOUBLE | |
4f3647e4 | 47 | # if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27) |
4bbac92a | 48 | strong_alias (__exp10l, __pow10l) |
5a80d39d | 49 | compat_symbol (libm, __pow10l, pow10l, GLIBC_2_1); |
4f3647e4 | 50 | # endif |
5a80d39d | 51 | # endif |
4bbac92a | 52 | #endif |