1 /* w_lgammal_r.c -- long double version of w_lgamma_r.c.
2 * Conversion to long double by Ulrich Drepper,
3 * Cygnus Support, drepper@cygnus.com.
4 */
5
6 /*
7 * ====================================================
8 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
9 *
10 * Developed at SunPro, a Sun Microsystems, Inc. business.
11 * Permission to use, copy, modify, and distribute this
12 * software is freely granted, provided that this notice
13 * is preserved.
14 * ====================================================
15 */
16
17 /*
18 * wrapper long double lgammal_r(long double x, int *signgamp)
19 */
20
21 #include <math.h>
22 #include "math_private.h"
23
24 #if !defined __NO_LONG_DOUBLE_MATH
libm_hidden_proto(lgammal_r)25 libm_hidden_proto(lgammal_r)
26 long double
27 lgammal_r(long double x, int *signgamp)
28 {
29 # if defined(__UCLIBC_HAS_FENV__)
30 long double y = (long double) __ieee754_lgamma_r((double)x,signgamp);
31 if(__builtin_expect(!isfinite(y), 0)
32 && isfinite(x) && _LIB_VERSION != _IEEE_)
33 return __kernel_standard(x, x,
34 floorl(x)==x&&x<=0.0
35 ? 215 /* lgamma pole */
36 : 214); /* lgamma overflow */
37
38 return y;
39 # else
40 return (long double) __ieee754_lgamma_r((double)x,signgamp);
41 # endif /* __UCLIBC_HAS_FENV__ */
42 }
43 libm_hidden_def(lgammal_r)
44 #endif /* __NO_LONG_DOUBLE_MATH */
45