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* [Bug libstdc++/67403] New: std::regex is not matching
@ 2015-08-30 23:22 kirbyfan64sos at gmail dot com
2015-08-30 23:31 ` [Bug libstdc++/67403] " pinskia at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: kirbyfan64sos at gmail dot com @ 2015-08-30 23:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67403
Bug ID: 67403
Summary: std::regex is not matching
Product: gcc
Version: 4.8.4
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: kirbyfan64sos at gmail dot com
Target Milestone: ---
Reproducing it is simple:
#include <iostream>
#include <string>
#include <regex>
using namespace std;
int main() {
cout << regex_search(string{"int"}, regex{"int"}) << '\n';
return 0;
}
This *should* print 1, and with libc++ it does. GCC? It prints 0. This had me
practically tearing my hair out trying to figure out what was wrong with my
regexes! :/
I searched for existing bugs related to this, but couldn't find any. I'm sorry
if this is a duplicate...
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/67403] std::regex is not matching
2015-08-30 23:22 [Bug libstdc++/67403] New: std::regex is not matching kirbyfan64sos at gmail dot com
@ 2015-08-30 23:31 ` pinskia at gcc dot gnu.org
2015-08-31 15:38 ` kirbyfan64sos at gmail dot com
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2015-08-30 23:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67403
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Iirc regex was not implemented in 4.8.x. Try 4.9 and above.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/67403] std::regex is not matching
2015-08-30 23:22 [Bug libstdc++/67403] New: std::regex is not matching kirbyfan64sos at gmail dot com
2015-08-30 23:31 ` [Bug libstdc++/67403] " pinskia at gcc dot gnu.org
@ 2015-08-31 15:38 ` kirbyfan64sos at gmail dot com
2015-08-31 17:59 ` miyuki at gcc dot gnu.org
2015-09-01 14:47 ` redi at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: kirbyfan64sos at gmail dot com @ 2015-08-31 15:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67403
--- Comment #2 from Ryan Gonzalez <kirbyfan64sos at gmail dot com> ---
(In reply to Andrew Pinski from comment #1)
> Iirc regex was not implemented in 4.8.x. Try 4.9 and above.
...but then why are the functions present? I would've preferred a compile-time
error if that is the case.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/67403] std::regex is not matching
2015-08-30 23:22 [Bug libstdc++/67403] New: std::regex is not matching kirbyfan64sos at gmail dot com
2015-08-30 23:31 ` [Bug libstdc++/67403] " pinskia at gcc dot gnu.org
2015-08-31 15:38 ` kirbyfan64sos at gmail dot com
@ 2015-08-31 17:59 ` miyuki at gcc dot gnu.org
2015-09-01 14:47 ` redi at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: miyuki at gcc dot gnu.org @ 2015-08-31 17:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67403
Mikhail Maltsev <miyuki at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |miyuki at gcc dot gnu.org
--- Comment #3 from Mikhail Maltsev <miyuki at gcc dot gnu.org> ---
Here is rather detailed explanation from Jonathan Wakely (he is the maintainer
of libstdc++):
https://stackoverflow.com/questions/12530406/is-gcc-4-7-and-gcc-4-8-buggy-about-regular-expressions/12665408
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/67403] std::regex is not matching
2015-08-30 23:22 [Bug libstdc++/67403] New: std::regex is not matching kirbyfan64sos at gmail dot com
` (2 preceding siblings ...)
2015-08-31 17:59 ` miyuki at gcc dot gnu.org
@ 2015-09-01 14:47 ` redi at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: redi at gcc dot gnu.org @ 2015-09-01 14:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67403
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |4.9.0
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Apart from that 4.8 is not supported anyway, so reporting bugs against it won't
achieve anything except being asked to try a current, supported release. If you
do that you will find it works in 4.9 and later.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2015-09-01 14:47 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-08-30 23:22 [Bug libstdc++/67403] New: std::regex is not matching kirbyfan64sos at gmail dot com
2015-08-30 23:31 ` [Bug libstdc++/67403] " pinskia at gcc dot gnu.org
2015-08-31 15:38 ` kirbyfan64sos at gmail dot com
2015-08-31 17:59 ` miyuki at gcc dot gnu.org
2015-09-01 14:47 ` redi at gcc dot gnu.org
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