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* [Bug c++/57526] New: use of X before deduction of auto error for seemingly good code
@ 2013-06-04 15:36 plasmahh at gmx dot net
2013-06-04 15:39 ` [Bug c++/57526] [4.8/4.9 Regression] " redi at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: plasmahh at gmx dot net @ 2013-06-04 15:36 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57526
Bug ID: 57526
Summary: use of X before deduction of auto error for seemingly
good code
Product: gcc
Version: 4.8.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: plasmahh at gmx dot net
Hi,
for the following code
template<class T>
struct A
{
void bar( ) { }
void foo( )
{
auto* this_ptr = this;
auto lc = [&]( )
{
this_ptr->bar();
};
lc();
}
};
int main(int argc, const char *argv[])
{
A<int> a;
a.foo();
}
I get gcc 4.8.{0,1} error me out with:
auto.cxx:12:4: error: use of 'A<T>::foo() [with T =
int]::__lambda0::__this_ptr' before deduction of 'auto'
this_ptr->bar();
which for one was not the case with gcc 4.7. There are two (strange) ways to
make it go away: Either make it be "auto" isntead of "auto*" or make A not
being a template. I also could not find anything in the standard that would
disallow this.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/57526] [4.8/4.9 Regression] use of X before deduction of auto error for seemingly good code
2013-06-04 15:36 [Bug c++/57526] New: use of X before deduction of auto error for seemingly good code plasmahh at gmx dot net
@ 2013-06-04 15:39 ` redi at gcc dot gnu.org
2013-07-09 7:04 ` jason at gcc dot gnu.org
2013-07-09 18:52 ` jason at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: redi at gcc dot gnu.org @ 2013-06-04 15:39 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57526
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-06-04
Known to work| |4.6.3, 4.7.3
Summary|use of X before deduction |[4.8/4.9 Regression] use of
|of auto error for seemingly |X before deduction of auto
|good code |error for seemingly good
| |code
Ever confirmed|0 |1
Known to fail| |4.8.0, 4.9.0
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/57526] [4.8/4.9 Regression] use of X before deduction of auto error for seemingly good code
2013-06-04 15:36 [Bug c++/57526] New: use of X before deduction of auto error for seemingly good code plasmahh at gmx dot net
2013-06-04 15:39 ` [Bug c++/57526] [4.8/4.9 Regression] " redi at gcc dot gnu.org
@ 2013-07-09 7:04 ` jason at gcc dot gnu.org
2013-07-09 18:52 ` jason at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: jason at gcc dot gnu.org @ 2013-07-09 7:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57526
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |jason at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/57526] [4.8/4.9 Regression] use of X before deduction of auto error for seemingly good code
2013-06-04 15:36 [Bug c++/57526] New: use of X before deduction of auto error for seemingly good code plasmahh at gmx dot net
2013-06-04 15:39 ` [Bug c++/57526] [4.8/4.9 Regression] " redi at gcc dot gnu.org
2013-07-09 7:04 ` jason at gcc dot gnu.org
@ 2013-07-09 18:52 ` jason at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: jason at gcc dot gnu.org @ 2013-07-09 18:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57526
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |4.8.2
--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed for 4.8.2/4.9.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-07-09 18:52 UTC | newest]
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2013-06-04 15:36 [Bug c++/57526] New: use of X before deduction of auto error for seemingly good code plasmahh at gmx dot net
2013-06-04 15:39 ` [Bug c++/57526] [4.8/4.9 Regression] " redi at gcc dot gnu.org
2013-07-09 7:04 ` jason at gcc dot gnu.org
2013-07-09 18:52 ` jason at gcc dot gnu.org
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