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* [Bug libc/10404] New: strtod of very small number returns with errno set to ERANGE
@ 2009-07-16 20:16 orion at cora dot nwra dot com
2009-07-16 20:30 ` [Bug libc/10404] " drepper at redhat dot com
2009-07-16 21:21 ` orion at cora dot nwra dot com
0 siblings, 2 replies; 4+ messages in thread
From: orion at cora dot nwra dot com @ 2009-07-16 20:16 UTC (permalink / raw)
To: glibc-bugs
strtod (and atof) of "5.30498947741318e-315" returns 5.3049894774131808e-315 but
with errno set to ERANGE. This is new in 2.10.1 compared to 2.9 and does not
appear to be correct.
--
Summary: strtod of very small number returns with errno set to
ERANGE
Product: glibc
Version: 2.10
Status: NEW
Severity: normal
Priority: P2
Component: libc
AssignedTo: drepper at redhat dot com
ReportedBy: orion at cora dot nwra dot com
CC: glibc-bugs at sources dot redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=10404
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* [Bug libc/10404] strtod of very small number returns with errno set to ERANGE
2009-07-16 20:16 [Bug libc/10404] New: strtod of very small number returns with errno set to ERANGE orion at cora dot nwra dot com
@ 2009-07-16 20:30 ` drepper at redhat dot com
2009-07-16 21:21 ` orion at cora dot nwra dot com
1 sibling, 0 replies; 4+ messages in thread
From: drepper at redhat dot com @ 2009-07-16 20:30 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From drepper at redhat dot com 2009-07-16 20:30 -------
That's the correct behavior.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
http://sourceware.org/bugzilla/show_bug.cgi?id=10404
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* [Bug libc/10404] strtod of very small number returns with errno set to ERANGE
2009-07-16 20:16 [Bug libc/10404] New: strtod of very small number returns with errno set to ERANGE orion at cora dot nwra dot com
2009-07-16 20:30 ` [Bug libc/10404] " drepper at redhat dot com
@ 2009-07-16 21:21 ` orion at cora dot nwra dot com
1 sibling, 0 replies; 4+ messages in thread
From: orion at cora dot nwra dot com @ 2009-07-16 21:21 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From orion at cora dot nwra dot com 2009-07-16 21:21 -------
I guess it depends on what you think "cannot be represented, without
extraordinary roundoff error" (definition of underflow from the C99 standard
[7.12.1.5]) means. 5.3049894774131808e-315 compared to 5.30498947741318e-315
does not appear to me to have "extraordinary roundoff error". I would suggest
that something other than a simple comparison with 2.2250738585072014E-308 for
triggering ERANGE is in order.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10404
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* [Bug libc/10404] strtod of very small number returns with errno set to ERANGE
[not found] <bug-10404-131@http.sourceware.org/bugzilla/>
@ 2014-07-01 7:47 ` fweimer at redhat dot com
0 siblings, 0 replies; 4+ messages in thread
From: fweimer at redhat dot com @ 2014-07-01 7:47 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=10404
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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end of thread, other threads:[~2014-07-01 7:47 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2009-07-16 20:16 [Bug libc/10404] New: strtod of very small number returns with errno set to ERANGE orion at cora dot nwra dot com
2009-07-16 20:30 ` [Bug libc/10404] " drepper at redhat dot com
2009-07-16 21:21 ` orion at cora dot nwra dot com
[not found] <bug-10404-131@http.sourceware.org/bugzilla/>
2014-07-01 7:47 ` fweimer at redhat dot com
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