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From: Jeff Johnston <jjohnstn@sourceware.org>
To: newlib-cvs@sourceware.org
Subject: [newlib-cygwin] libm: Make tgamma(-small) = -INFINITY
Date: Fri, 18 Sep 2020 21:20:52 +0000 (GMT) [thread overview]
Message-ID: <20200918212052.7D49B3861034@sourceware.org> (raw)
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=4641693796509d595f8c0521f914faccff77b3ba
commit 4641693796509d595f8c0521f914faccff77b3ba
Author: Keith Packard <keithp@keithp.com>
Date: Tue Sep 15 10:10:07 2020 -0700
libm: Make tgamma(-small) = -INFINITY
Need to copy the argument sign to the output for tgamma(finite)
overflow case.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diff:
---
newlib/libm/math/k_standard.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/newlib/libm/math/k_standard.c b/newlib/libm/math/k_standard.c
index 906412ba7..beab51e16 100644
--- a/newlib/libm/math/k_standard.c
+++ b/newlib/libm/math/k_standard.c
@@ -331,7 +331,7 @@ static double zero = 0.0; /* used as const */
case 40:
case 140:
/* gamma(finite) overflow */
- retval = HUGE_VAL;
+ retval = copysign(HUGE_VAL, x);
errno = ERANGE;
break;
case 41:
reply other threads:[~2020-09-18 21:20 UTC|newest]
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