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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 | ||
25 | #include "math.h" | |
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) |