libm/w_lgammal.c

   1 /* w_lgammal.c -- long double version of w_lgamma.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 /* long double lgammal(long double x)
  18  * Return the logarithm of the Gamma function of x.
  19  *
  20  * Method: call __ieee754_lgammal_r
  21  */
  22
  23 #include <math.h>
  24 #include "math_private.h"
  25
  26 #if !defined __NO_LONG_DOUBLE_MATH
  27 long double lgammal(long double x)
  28 {
  29         return lgammal_r(x, &signgam);
  30 }
  31
  32 /* NB: gamma function is an old name for lgamma.
  33  * It is deprecated.
  34  * Some C math libraries redefine it as a "true gamma", i.e.,
  35  * not a ln(|Gamma(x)|) but just Gamma(x), but standards
  36  * introduced tgamma name for that.
  37  */
  38 strong_alias(lgammal, gammal)
  39 #endif