| /* w_lgammal.c -- long double version of w_lgamma.c. |
| * Conversion to long double by Ulrich Drepper, |
| * Cygnus Support, drepper@cygnus.com. |
| */ |
| |
| /* |
| * ==================================================== |
| * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
| * |
| * Developed at SunPro, a Sun Microsystems, Inc. business. |
| * Permission to use, copy, modify, and distribute this |
| * software is freely granted, provided that this notice |
| * is preserved. |
| * ==================================================== |
| */ |
| |
| /* long double lgammal(long double x) |
| * Return the logarithm of the Gamma function of x. |
| * |
| * Method: call __ieee754_lgammal_r |
| */ |
| |
| #include <math.h> |
| #include <math_private.h> |
| #include <math-svid-compat.h> |
| #include <libm-alias-ldouble.h> |
| |
| #include <lgamma-compat.h> |
| |
| #if BUILD_LGAMMA |
| long double |
| LGFUNC (__lgammal) (long double x) |
| { |
| long double y = CALL_LGAMMA (long double, __ieee754_lgammal_r, x); |
| if(__builtin_expect(!isfinite(y), 0) |
| && isfinite(x) && _LIB_VERSION != _IEEE_) |
| return __kernel_standard_l(x, x, |
| __floorl(x)==x&&x<=0.0L |
| ? 215 /* lgamma pole */ |
| : 214); /* lgamma overflow */ |
| |
| return y; |
| } |
| # if USE_AS_COMPAT |
| compat_symbol (libm, __lgammal_compat, lgammal, LGAMMA_OLD_VER); |
| # else |
| versioned_symbol (libm, __lgammal, lgammal, LGAMMA_NEW_VER); |
| libm_alias_ldouble_other (__lgamma, lgamma) |
| # endif |
| # if GAMMA_ALIAS |
| strong_alias (LGFUNC (__lgammal), __gammal) |
| weak_alias (__gammal, gammal) |
| # endif |
| #endif |
