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2b778ceb | 1 | /* Copyright (C) 2011-2021 Free Software Foundation, Inc. |
0ac5ae23 | 2 | This file is part of the GNU C Library. |
0ac5ae23 UD |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
ecdc196c | 17 | |
4bbac92a UD |
18 | |
19 | /* | |
20 | * wrapper exp10(x) | |
21 | */ | |
22 | ||
9d13fb24 | 23 | #include <math.h> |
9277c064 | 24 | #include <math_private.h> |
813378e9 | 25 | #include <math-svid-compat.h> |
9ac44708 | 26 | #include <libm-alias-double.h> |
4bbac92a | 27 | |
4f3647e4 | 28 | #if LIBM_SVID_COMPAT |
0ac5ae23 UD |
29 | double |
30 | __exp10 (double x) | |
4bbac92a | 31 | { |
0ac5ae23 | 32 | double z = __ieee754_exp10 (x); |
d81f90cc WD |
33 | if (__builtin_expect (!isfinite (z) || z == 0, 0) |
34 | && isfinite (x) && _LIB_VERSION != _IEEE_) | |
0ac5ae23 | 35 | /* exp10 overflow (46) if x > 0, underflow (47) if x < 0. */ |
d81f90cc | 36 | return __kernel_standard (x, x, 46 + !!signbit (x)); |
0ac5ae23 UD |
37 | |
38 | return z; | |
4bbac92a | 39 | } |
9ac44708 | 40 | libm_alias_double (__exp10, exp10) |
4f3647e4 | 41 | # if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27) |
4bbac92a | 42 | strong_alias (__exp10, __pow10) |
5a80d39d | 43 | compat_symbol (libm, __pow10, pow10, GLIBC_2_1); |
4f3647e4 JM |
44 | # endif |
45 | # ifdef NO_LONG_DOUBLE | |
4f3647e4 | 46 | # if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27) |
4bbac92a | 47 | strong_alias (__exp10l, __pow10l) |
5a80d39d | 48 | compat_symbol (libm, __pow10l, pow10l, GLIBC_2_1); |
4f3647e4 | 49 | # endif |
5a80d39d | 50 | # endif |
4bbac92a | 51 | #endif |