diff options
Diffstat (limited to 'sysdeps/libm-ieee754/e_gamma_r.c')
-rw-r--r-- | sysdeps/libm-ieee754/e_gamma_r.c | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/sysdeps/libm-ieee754/e_gamma_r.c b/sysdeps/libm-ieee754/e_gamma_r.c deleted file mode 100644 index bd802c24f1..0000000000 --- a/sysdeps/libm-ieee754/e_gamma_r.c +++ /dev/null @@ -1,51 +0,0 @@ -/* Implementation of gamma function according to ISO C. - Copyright (C) 1997, 1999 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <math.h> -#include <math_private.h> - - -double -__ieee754_gamma_r (double x, int *signgamp) -{ - /* We don't have a real gamma implementation now. We'll use lgamma - and the exp function. But due to the required boundary - conditions we must check some values separately. */ - int32_t hx; - u_int32_t lx; - - EXTRACT_WORDS (hx, lx, x); - - if (((hx & 0x7fffffff) | lx) == 0) - { - /* Return value for x == 0 is NaN with invalid exception. */ - *signgamp = 0; - return x / x; - } - if (hx < 0 && (u_int32_t) hx < 0xfff00000 && __rint (x) == x) - { - /* Return value for integer x < 0 is NaN with invalid exception. */ - *signgamp = 0; - return (x - x) / (x - x); - } - - /* XXX FIXME. */ - return __ieee754_exp (__ieee754_lgamma_r (x, signgamp)); -} |