| 1 | /* Copyright (C) 2011-2024 Free Software Foundation, Inc. |
|---|
| 2 | This file is part of the GNU C Library. |
|---|
| 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 |
|---|
| 15 | License along with the GNU C Library; if not, see |
|---|
| 16 | <https://www.gnu.org/licenses/>. */ |
|---|
| 17 | |
|---|
| 18 | |
|---|
| 19 | /* |
|---|
| 20 | * wrapper exp10(x) |
|---|
| 21 | */ |
|---|
| 22 | |
|---|
| 23 | #include <math.h> |
|---|
| 24 | #include <math_private.h> |
|---|
| 25 | #include <math-svid-compat.h> |
|---|
| 26 | #include <libm-alias-double.h> |
|---|
| 27 | |
|---|
| 28 | #ifndef NO_COMPAT_NEEDED |
|---|
| 29 | # define NO_COMPAT_NEEDED 0 |
|---|
| 30 | #endif |
|---|
| 31 | |
|---|
| 32 | #if LIBM_SVID_COMPAT && (SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_39) \ |
|---|
| 33 | || defined NO_LONG_DOUBLE \ |
|---|
| 34 | || defined LONG_DOUBLE_COMPAT) |
|---|
| 35 | double |
|---|
| 36 | __exp10_compat (double x) |
|---|
| 37 | { |
|---|
| 38 | double z = __ieee754_exp10 (x); |
|---|
| 39 | if (__builtin_expect (!isfinite (z) || z == 0, 0) |
|---|
| 40 | && isfinite (x) && _LIB_VERSION != _IEEE_) |
|---|
| 41 | /* exp10 overflow (46) if x > 0, underflow (47) if x < 0. */ |
|---|
| 42 | return __kernel_standard (x, x, 46 + !!signbit (x)); |
|---|
| 43 | |
|---|
| 44 | return z; |
|---|
| 45 | } |
|---|
| 46 | # if NO_COMPAT_NEEDED |
|---|
| 47 | # ifdef SHARED |
|---|
| 48 | libm_alias_double (__exp10_compat, exp10) |
|---|
| 49 | # endif |
|---|
| 50 | #else |
|---|
| 51 | # if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_39) |
|---|
| 52 | compat_symbol (libm, __exp10_compat, exp10, GLIBC_2_1); |
|---|
| 53 | # endif |
|---|
| 54 | # ifdef NO_LONG_DOUBLE |
|---|
| 55 | weak_alias (__exp10_compat, exp10l) |
|---|
| 56 | # endif |
|---|
| 57 | # ifdef LONG_DOUBLE_COMPAT |
|---|
| 58 | LONG_DOUBLE_COMPAT_CHOOSE_libm_exp10l ( |
|---|
| 59 | compat_symbol (libm, __exp10_compat, exp10l, FIRST_VERSION_libm_exp10l), ); |
|---|
| 60 | # endif |
|---|
| 61 | # endif |
|---|
| 62 | |
|---|
| 63 | # if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27) |
|---|
| 64 | strong_alias (__exp10_compat, __pow10) |
|---|
| 65 | compat_symbol (libm, __pow10, pow10, GLIBC_2_1); |
|---|
| 66 | # endif |
|---|
| 67 | # ifdef NO_LONG_DOUBLE |
|---|
| 68 | # if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27) |
|---|
| 69 | strong_alias (exp10l, __pow10l) |
|---|
| 70 | compat_symbol (libm, __pow10l, pow10l, GLIBC_2_1); |
|---|
| 71 | # endif |
|---|
| 72 | # endif |
|---|
| 73 | #endif |
|---|
| 74 | |
|---|
