| 1 | /* w_lgammaf.c -- float version of w_lgamma.c. |
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| 2 | */ |
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| 3 | |
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| 4 | /* |
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| 5 | * ==================================================== |
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| 6 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
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| 7 | * |
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| 8 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
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| 9 | * Permission to use, copy, modify, and distribute this |
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| 10 | * software is freely granted, provided that this notice |
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| 11 | * is preserved. |
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| 12 | * ==================================================== |
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| 13 | */ |
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| 14 | |
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| 15 | #include <math.h> |
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| 16 | #include <math_private.h> |
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| 17 | #include <math-svid-compat.h> |
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| 18 | #include <libm-alias-float.h> |
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| 19 | |
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| 20 | #include <lgamma-compat.h> |
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| 21 | |
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| 22 | #if BUILD_LGAMMA |
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| 23 | float |
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| 24 | LGFUNC (__lgammaf) (float x) |
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| 25 | { |
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| 26 | float y = CALL_LGAMMA (float, __ieee754_lgammaf_r, x); |
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| 27 | if(__builtin_expect(!isfinite(y), 0) |
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| 28 | && isfinite(x) && _LIB_VERSION != _IEEE_) |
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| 29 | return __kernel_standard_f(x, x, |
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| 30 | floorf(x)==x&&x<=0.0f |
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| 31 | ? 115 /* lgamma pole */ |
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| 32 | : 114); /* lgamma overflow */ |
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| 33 | |
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| 34 | return y; |
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| 35 | } |
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| 36 | # if USE_AS_COMPAT |
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| 37 | compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER); |
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| 38 | # else |
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| 39 | versioned_symbol (libm, __lgammaf, lgammaf, LGAMMA_NEW_VER); |
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| 40 | libm_alias_float_other (__lgamma, lgamma) |
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| 41 | # endif |
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| 42 | # if GAMMA_ALIAS |
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| 43 | strong_alias (LGFUNC (__lgammaf), __gammaf) |
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| 44 | weak_alias (__gammaf, gammaf) |
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| 45 | # endif |
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| 46 | #endif |
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| 47 | |
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