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authorUlrich Drepper <drepper@redhat.com>2008-04-10 04:58:03 +0000
committerUlrich Drepper <drepper@redhat.com>2008-04-10 04:58:03 +0000
commitfacd1d8ef35edb863523a7165a64d55196cc2d36 (patch)
tree93d32c46114d13e0482edb7f281a43f2c5b765f1
parentaece054b306608e8898adac2320f75364c1b42da (diff)
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[BZ #4407]
2008-02-12 Pete Eberlein <eberlein@us.ibm.com> [BZ #4407] * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): Preserve sign in signgamp when x is zero.
-rw-r--r--ChangeLog6
-rw-r--r--sysdeps/ieee754/ldbl-128/e_lgammal_r.c6
2 files changed, 12 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 247c792..374553e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-02-12 Pete Eberlein <eberlein@us.ibm.com>
+
+ [BZ #4407]
+ * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r):
+ Preserve sign in signgamp when x is zero.
+
2007-10-26 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.S: New File.
diff --git a/sysdeps/ieee754/ldbl-128/e_lgammal_r.c b/sysdeps/ieee754/ldbl-128/e_lgammal_r.c
index b930297..d080448 100644
--- a/sysdeps/ieee754/ldbl-128/e_lgammal_r.c
+++ b/sysdeps/ieee754/ldbl-128/e_lgammal_r.c
@@ -772,6 +772,12 @@ __ieee754_lgammal_r (x, signgamp)
if (! __finitel (x))
return x * x;
+ if (x == 0.0L)
+ {
+ if (__signbitl (x))
+ *signgamp = -1;
+ }
+
if (x < 0.0L)
{
q = -x;