1 | /* w_lgammaf_r.c -- float version of w_lgamma_r.c. |
2 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
3 | */ |
4 | |
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 float lgammaf_r(float x, int *signgamp) |
18 | */ |
19 | |
20 | #include <math.h> |
21 | #include <math_private.h> |
22 | #include <math-svid-compat.h> |
23 | #include <libm-alias-float.h> |
24 | |
25 | |
26 | #if LIBM_SVID_COMPAT |
27 | float |
28 | __lgammaf_r(float x, int *signgamp) |
29 | { |
30 | float y = __ieee754_lgammaf_r(x,signgamp); |
31 | if(__builtin_expect(!isfinite(y), 0) |
32 | && isfinite(x) && _LIB_VERSION != _IEEE_) |
33 | return __kernel_standard_f(x, x, |
34 | floorf(x)==x&&x<=0.0f |
35 | ? 115 /* lgamma pole */ |
36 | : 114); /* lgamma overflow */ |
37 | |
38 | return y; |
39 | } |
40 | libm_alias_float_r (__lgamma, lgamma, _r) |
41 | #endif |
42 | |