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| author | Ulrich Drepper <drepper@redhat.com> | 2007-10-06 18:37:30 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2007-10-06 18:37:30 +0000 |
| commit | c039eedd66aff3706fede2188d920e173543b8e8 (patch) | |
| tree | 7caae3bc57aa7ff2781e7e32c4dc4c8925ad096a /math | |
| parent | 718946816cf60374f9d8f674d3ed649fdb33205a (diff) | |
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[BZ #4407]
* sysdeps/ieee754/dbl-64/e_lgamma_r.c: Fix *signgamp for -0.0.
* sysdeps/ieee754/flt-32/e_lgammaf_r.c: Likewise.
* sysdeps/ieee754/ldbl-96/e_lgammal_r.c: Likewise.
* math/libm-test.inc: Add test for this case.
Half the patch by Christian Iseli <christian.iseli@licr.org>.
Diffstat (limited to 'math')
| -rw-r--r-- | math/libm-test.inc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc index 81dd364f77..da68d40bb4 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -1,4 +1,4 @@ -/* Copyright (C) 1997-2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. +/* Copyright (C) 1997-2006, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Andreas Jaeger <aj@suse.de>, 1997. @@ -3221,6 +3221,9 @@ lgamma_test (void) TEST_f_f (lgamma, plus_infty, plus_infty); TEST_f_f (lgamma, 0, plus_infty, DIVIDE_BY_ZERO_EXCEPTION); + check_int ("signgam for lgamma(0) == 1", signgam, 1, 0, 0, 0); + TEST_f_f (lgamma, minus_zero, plus_infty, DIVIDE_BY_ZERO_EXCEPTION); + check_int ("signgam for lgamma(-0) == -1", signgam, -1, 0, 0, 0); TEST_f_f (lgamma, nan_value, nan_value); /* lgamma (x) == +inf plus divide by zero exception for integer x <= 0. */ |