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d709042a JM |
1 | /* w_lgammaf.c -- float version of w_lgamma.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 | #include <math.h> | |
17 | #include <math_private.h> | |
813378e9 | 18 | #include <math-svid-compat.h> |
24b6515d | 19 | #include <libm-alias-float.h> |
d709042a JM |
20 | |
21 | #include <lgamma-compat.h> | |
22 | ||
23 | #if BUILD_LGAMMA | |
24 | float | |
25 | LGFUNC (__lgammaf) (float x) | |
26 | { | |
27 | float y = CALL_LGAMMA (float, __ieee754_lgammaf_r, x); | |
28 | if(__builtin_expect(!isfinite(y), 0) | |
29 | && isfinite(x) && _LIB_VERSION != _IEEE_) | |
30 | return __kernel_standard_f(x, x, | |
e44acb20 | 31 | floorf(x)==x&&x<=0.0f |
d709042a JM |
32 | ? 115 /* lgamma pole */ |
33 | : 114); /* lgamma overflow */ | |
34 | ||
35 | return y; | |
36 | } | |
37 | # if USE_AS_COMPAT | |
38 | compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER); | |
39 | # else | |
40 | versioned_symbol (libm, __lgammaf, lgammaf, LGAMMA_NEW_VER); | |
24b6515d | 41 | libm_alias_float_other (__lgamma, lgamma) |
d709042a JM |
42 | # endif |
43 | # if GAMMA_ALIAS | |
44 | strong_alias (LGFUNC (__lgammaf), __gammaf) | |
45 | weak_alias (__gammaf, gammaf) | |
46 | # endif | |
47 | #endif |