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1 | /* @(#)wr_lgamma.c 5.1 93/09/24 */ |
2 | /* | |
3 | * ==================================================== | |
4 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | |
5 | * | |
6 | * Developed at SunPro, a Sun Microsystems, Inc. business. | |
7 | * Permission to use, copy, modify, and distribute this | |
cccda09f | 8 | * software is freely granted, provided that this notice |
f7eac6eb RM |
9 | * is preserved. |
10 | * ==================================================== | |
11 | */ | |
12 | ||
cccda09f | 13 | /* |
f7eac6eb RM |
14 | * wrapper double lgamma_r(double x, int *signgamp) |
15 | */ | |
16 | ||
9d13fb24 | 17 | #include <math.h> |
9277c064 | 18 | #include <math_private.h> |
813378e9 | 19 | #include <math-svid-compat.h> |
f7eac6eb RM |
20 | |
21 | ||
0ac5ae23 UD |
22 | double |
23 | __lgamma_r(double x, int *signgamp) | |
f7eac6eb | 24 | { |
0ac5ae23 | 25 | double y = __ieee754_lgamma_r(x,signgamp); |
d81f90cc WD |
26 | if(__builtin_expect(!isfinite(y), 0) |
27 | && isfinite(x) && _LIB_VERSION != _IEEE_) | |
0ac5ae23 UD |
28 | return __kernel_standard(x, x, |
29 | __floor(x)==x&&x<=0.0 | |
30 | ? 15 /* lgamma pole */ | |
31 | : 14); /* lgamma overflow */ | |
32 | ||
33 | return y; | |
cccda09f | 34 | } |
f7eac6eb | 35 | weak_alias (__lgamma_r, lgamma_r) |
cccda09f UD |
36 | #ifdef NO_LONG_DOUBLE |
37 | strong_alias (__lgamma_r, __lgammal_r) | |
38 | weak_alias (__lgamma_r, lgammal_r) | |
39 | #endif |