math/w_lgammal_r.c

   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
  25 long double
  26 __lgammal_r(long double x, int *signgamp)
  27 {
  28         long double y = __ieee754_lgammal_r(x,signgamp);
  29         if(__builtin_expect(!isfinite(y), 0)
  30            && isfinite(x) && _LIB_VERSION != _IEEE_)
  31                 return __kernel_standard(x, x,
  32                                          __floorl(x)==x&&x<=0.0
  33                                          ? 215 /* lgamma pole */
  34                                          : 214); /* lgamma overflow */
  35
  36         return y;
  37 }
  38 weak_alias (__lgammal_r, lgammal_r)