projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| ee188d55 RM |
1 | /* w_logl.c -- long double version of w_log.c. |
| 2 | * Conversion to long double by Ulrich Drepper, | |
| 3 | * Cygnus Support, drepper@cygnus.com. | |
| 4 | */ | |
| 5 | ||
| 6 | /* | |
| 7 | * ==================================================== | |
| 8 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | |
| 9 | * | |
| 10 | * Developed at SunPro, a Sun Microsystems, Inc. business. | |
| 11 | * Permission to use, copy, modify, and distribute this | |
| 12 | * software is freely granted, provided that this notice | |
| 13 | * is preserved. | |
| 14 | * ==================================================== | |
| 15 | */ | |
| 16 | ||
| 17 | #if defined(LIBM_SCCS) && !defined(lint) | |
| 18 | static char rcsid[] = "$NetBSD: $"; | |
| 19 | #endif | |
| 20 | ||
| 21 | /* | |
| 22 | * wrapper logl(x) | |
| 23 | */ | |
| 24 | ||
| a334319f | 25 | #include "math.h" |
| ee188d55 RM |
26 | #include "math_private.h" |
| 27 | ||
| 28 | ||
| 29 | #ifdef __STDC__ | |
| 30 | long double __logl(long double x) /* wrapper logl */ | |
| 31 | #else | |
| 32 | long double __logl(x) /* wrapper logl */ | |
| 33 | long double x; | |
| 34 | #endif | |
| 35 | { | |
| 36 | #ifdef _IEEE_LIBM | |
| 37 | return __ieee754_logl(x); | |
| 38 | #else | |
| 39 | long double z; | |
| 40 | z = __ieee754_logl(x); | |
| 41 | if(_LIB_VERSION == _IEEE_ || __isnanl(x) || x > 0.0) return z; | |
| 42 | if(x==0.0) | |
| 43 | return __kernel_standard(x,x,216); /* log(0) */ | |
| 44 | else | |
| 45 | return __kernel_standard(x,x,217); /* log(x<0) */ | |
| 46 | #endif | |
| 47 | } | |
| 48 | weak_alias (__logl, logl) |