projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 4bbac92a UD |
1 | /* @(#)w_exp10.c |
| 2 | * Conversion to exp10 by Ulrich Drepper <drepper@cygnus.com>. | |
| ecdc196c UD |
3 | */ |
| 4 | ||
| 4bbac92a UD |
5 | /* |
| 6 | * ==================================================== | |
| 7 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | |
| 8 | * | |
| 9 | * Developed at SunPro, a Sun Microsystems, Inc. business. | |
| 10 | * Permission to use, copy, modify, and distribute this | |
| 11 | * software is freely granted, provided that this notice | |
| 12 | * is preserved. | |
| 13 | * ==================================================== | |
| 14 | */ | |
| 15 | ||
| 16 | /* | |
| 17 | * wrapper exp10(x) | |
| 18 | */ | |
| 19 | ||
| 0ecb606c | 20 | #include <math.h> |
| 4bbac92a UD |
21 | #include "math_private.h" |
| 22 | ||
| 4bbac92a UD |
23 | #ifdef __STDC__ |
| 24 | double __exp10(double x) /* wrapper exp10 */ | |
| 25 | #else | |
| 26 | double __exp10(x) /* wrapper exp10 */ | |
| 27 | double x; | |
| 28 | #endif | |
| 29 | { | |
| 30 | #ifdef _IEEE_LIBM | |
| 31 | return __ieee754_exp10(x); | |
| 32 | #else | |
| 33 | double z; | |
| 34 | z = __ieee754_exp10(x); | |
| 35 | if(_LIB_VERSION == _IEEE_) return z; | |
| 601d2942 UD |
36 | if(!__finite(z) && __finite(x)) { |
| 37 | /* exp10 overflow (46) if x > 0, underflow (47) if x < 0. */ | |
| 38 | return __kernel_standard(x,x,46+!!__signbit(x)); | |
| 4bbac92a UD |
39 | } |
| 40 | return z; | |
| 41 | #endif | |
| 42 | } | |
| 43 | weak_alias (__exp10, exp10) | |
| 44 | strong_alias (__exp10, __pow10) | |
| 45 | weak_alias (__pow10, pow10) | |
| 46 | #ifdef NO_LONG_DOUBLE | |
| 47 | strong_alias (__exp10, __exp10l) | |
| 48 | weak_alias (__exp10, exp10l) | |
| 49 | strong_alias (__exp10l, __pow10l) | |
| 50 | weak_alias (__pow10l, pow10l) | |
| 51 | #endif |