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authorUlrich Drepper <drepper@redhat.com>2004-11-21 19:58:34 +0000
committerUlrich Drepper <drepper@redhat.com>2004-11-21 19:58:34 +0000
commit52495f29a2e8519da83cbda0c21ad95405364705 (patch)
tree1ece157b55f4df330c2cbdc2b6cb276c57959476 /sysdeps/ieee754/flt-32/e_gammaf_r.c
parent250ecb48d516b08be7d0fdba0a7ba5146e148a77 (diff)
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[BZ #552]
Update.
2004-11-20  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/ieee754/k_standard.c: Document code 50.
	(__kernel_standard) <case 50>: Avoid raising div-by-zero
	exception again.

2004-11-19  H.J. Lu  <hongjiu.lu@intel.com>

	[BZ #552]
	* math/libm-test.inc (tgamma_test): Update tgamma (0) and
	tgamma (-0).
	* sysdeps/generic/w_tgamma.c (__tgamma): Properly handle |x| == 0.
	* sysdeps/generic/w_tgammaf.c (__tgammaf): Likewise.
	* sysdeps/generic/w_tgammal.c (__tgammal): Likewise.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r): Likewise.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c: Likewise.
	* sysdeps/ieee754/ldbl-128/e_gammal_r.c: Likewise.
	* sysdeps/ieee754/ldbl-96/e_gammal_r.c: Likewise.
	* sysdeps/ieee754/k_standard.c (__kernel_standard): Handle
	tgamma (0) and tgamma (-0).
Diffstat (limited to 'sysdeps/ieee754/flt-32/e_gammaf_r.c')
-rw-r--r--sysdeps/ieee754/flt-32/e_gammaf_r.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/sysdeps/ieee754/flt-32/e_gammaf_r.c b/sysdeps/ieee754/flt-32/e_gammaf_r.c
index d484e0c288..926c84f368 100644
--- a/sysdeps/ieee754/flt-32/e_gammaf_r.c
+++ b/sysdeps/ieee754/flt-32/e_gammaf_r.c
@@ -1,5 +1,5 @@
 /* Implementation of gamma function according to ISO C.
-   Copyright (C) 1997, 1999, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1999, 2001, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -34,9 +34,9 @@ __ieee754_gammaf_r (float x, int *signgamp)
 
   if ((hx & 0x7fffffff) == 0)
     {
-      /* Return value for x == 0 is NaN with invalid exception.  */
+      /* Return value for x == 0 is Inf with divide by zero exception.  */
       *signgamp = 0;
-      return x / x;
+      return 1.0 / x;
     }
   if (hx < 0 && (u_int32_t) hx < 0xff800000 && __rintf (x) == x)
     {