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From: "jsm28 at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug math/19046] New: ldbl-128 / ldbl-128ibm lgamma bad overflow handling
Date: Thu, 01 Oct 2015 16:35:00 -0000 [thread overview]
Message-ID: <bug-19046-131@http.sourceware.org/bugzilla/> (raw)
https://sourceware.org/bugzilla/show_bug.cgi?id=19046
Bug ID: 19046
Summary: ldbl-128 / ldbl-128ibm lgamma bad overflow handling
Product: glibc
Version: 2.22
Status: NEW
Severity: normal
Priority: P2
Component: math
Assignee: unassigned at sourceware dot org
Reporter: jsm28 at gcc dot gnu.org
Target Milestone: ---
The ldbl-128 / ldbl-128ibm implementation of lgamma handles large arguments in
a way that results in spurious overflows. E.g., for mips64:
Failure: lgamma (0x5.c6aa645fffef5f5p+16368): Exception "Overflow" set
Failure: lgamma (0x5.c6aa645fffef5f5p+16368): errno set to 34, expected 0
(unchanged)
Failure: Test: lgamma (0x5.c6aa645fffef5f5p+16368)
Result:
is: inf inf
should be: 1.18973149535723176409107723032036400e+4932
0x1.ffffffffffffffe127acbfd5f54ap+16383
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next reply other threads:[~2015-10-01 16:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-01 16:35 jsm28 at gcc dot gnu.org [this message]
2015-10-01 17:17 ` [Bug math/19046] " cvs-commit at gcc dot gnu.org
2015-10-01 17:18 ` jsm28 at gcc dot gnu.org
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