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[Bug math/14123] New: ccos, csin, ccosh, csinh internal overflows
- From: "jsm28 at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Fri, 18 May 2012 23:08:27 +0000
- Subject: [Bug math/14123] New: ccos, csin, ccosh, csinh internal overflows
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=14123
Bug #: 14123
Summary: ccos, csin, ccosh, csinh internal overflows
Product: glibc
Version: 2.15
Status: NEW
Severity: normal
Priority: P2
Component: math
AssignedTo: unassigned@sourceware.org
ReportedBy: jsm28@gcc.gnu.org
Classification: Unclassified
The implementations of ccos, csin, ccosh and csinh all suffer from internal
overflows in some cases where at least one part of the result, sometimes both
parts, should not overflow. For example, ccos (0.75 + 710.5 * I) wrongly
returns Inf - Inf * I, but both parts should be finite (slightly smaller than
DBL_MAX).
I'll send a patch.
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