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d709042a | 1 | /* w_lgammaf.c -- float version of w_lgamma.c. |
d709042a JM |
2 | */ |
3 | ||
4 | /* | |
5 | * ==================================================== | |
6 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | |
7 | * | |
8 | * Developed at SunPro, a Sun Microsystems, Inc. business. | |
9 | * Permission to use, copy, modify, and distribute this | |
10 | * software is freely granted, provided that this notice | |
11 | * is preserved. | |
12 | * ==================================================== | |
13 | */ | |
14 | ||
15 | #include <math.h> | |
16 | #include <math_private.h> | |
813378e9 | 17 | #include <math-svid-compat.h> |
24b6515d | 18 | #include <libm-alias-float.h> |
d709042a JM |
19 | |
20 | #include <lgamma-compat.h> | |
21 | ||
22 | #if BUILD_LGAMMA | |
23 | float | |
24 | LGFUNC (__lgammaf) (float x) | |
25 | { | |
26 | float y = CALL_LGAMMA (float, __ieee754_lgammaf_r, x); | |
27 | if(__builtin_expect(!isfinite(y), 0) | |
28 | && isfinite(x) && _LIB_VERSION != _IEEE_) | |
29 | return __kernel_standard_f(x, x, | |
e44acb20 | 30 | floorf(x)==x&&x<=0.0f |
d709042a JM |
31 | ? 115 /* lgamma pole */ |
32 | : 114); /* lgamma overflow */ | |
33 | ||
34 | return y; | |
35 | } | |
36 | # if USE_AS_COMPAT | |
37 | compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER); | |
38 | # else | |
39 | versioned_symbol (libm, __lgammaf, lgammaf, LGAMMA_NEW_VER); | |
24b6515d | 40 | libm_alias_float_other (__lgamma, lgamma) |
d709042a JM |
41 | # endif |
42 | # if GAMMA_ALIAS | |
43 | strong_alias (LGFUNC (__lgammaf), __gammaf) | |
44 | weak_alias (__gammaf, gammaf) | |
45 | # endif | |
46 | #endif |