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* [Bug c++/58004] New: Internal compiler error in unify_one_argument, at cp/pt.c:15445
@ 2013-07-27 17:47 lin90162 at gmail dot com
2013-07-27 19:37 ` [Bug c++/58004] " paolo.carlini at oracle dot com
0 siblings, 1 reply; 2+ messages in thread
From: lin90162 at gmail dot com @ 2013-07-27 17:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58004
Bug ID: 58004
Summary: Internal compiler error in unify_one_argument, at
cp/pt.c:15445
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: lin90162 at gmail dot com
Code:
// hoge.cpp
template< class T, T... V >
struct L{};
template< class T, class U = L<T> >
struct X;
template< char... V >
struct X< char, L<V...> > {};
int main()
{
typename X<char>::type a; // instantiate specialized template class
return 0;
}
// end of hoge.cpp
Error message:
hoge.cpp: In function 'int main()':
hoge.cpp:13:21: internal compiler error: in unify_one_argument, at
cp/pt.c:15445
typename X<char>::type a; // specialized template instantiation
^
hoge.cpp:13:21: internal compiler error: Abort trap: 6
g++-4.8: internal compiler error: Abort trap: 6 (program cc1plus)
[1] 37562 abort g++-4.8 -std=c++11 -Wall -Wextra -O2 hoge.cpp
GCC should occur 'invalid template type argument' error because first template
argument of L should be a type but first template argument of L<V...> is a
value.
This internal compiler error seems to occur only in template specialization.
I tested this code in gcc 4.7.3, 4.8.1 and 4.9.0 20130726 and all of them fail.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c++/58004] Internal compiler error in unify_one_argument, at cp/pt.c:15445
2013-07-27 17:47 [Bug c++/58004] New: Internal compiler error in unify_one_argument, at cp/pt.c:15445 lin90162 at gmail dot com
@ 2013-07-27 19:37 ` paolo.carlini at oracle dot com
0 siblings, 0 replies; 2+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-07-27 19:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58004
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Same issue, really.
*** This bug has been marked as a duplicate of bug 52844 ***
^ permalink raw reply [flat|nested] 2+ messages in thread
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2013-07-27 17:47 [Bug c++/58004] New: Internal compiler error in unify_one_argument, at cp/pt.c:15445 lin90162 at gmail dot com
2013-07-27 19:37 ` [Bug c++/58004] " paolo.carlini at oracle dot com
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