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[Bug math/18196] New: atanf spurious underflows
- From: "jsm28 at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Thu, 02 Apr 2015 23:31:00 +0000
- Subject: [Bug math/18196] New: atanf spurious underflows
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=18196
Bug ID: 18196
Summary: atanf spurious underflows
Product: glibc
Version: 2.21
Status: NEW
Severity: normal
Priority: P2
Component: math
Assignee: unassigned at sourceware dot org
Reporter: jsm28 at gcc dot gnu.org
The sysdeps/ieee754/flt-32 version of atanf produces spurious underflow
exceptions for some large arguments. For example, on x86_64, atanf (0x1p31f)
(whose result is very close to pi/2) produces such an exception.
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