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From: "reichelt at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/33461] New: [4.3 regression] ICE with invalid specialization involving parameter packs
Date: Mon, 17 Sep 2007 22:10:00 -0000 [thread overview]
Message-ID: <bug-33461-1771@http.gcc.gnu.org/bugzilla/> (raw)
The following invalid testcase triggers an ICE on mainline:
===================================
template<typename> struct A;
template<typename... T> struct A<T*>
{
struct B;
};
A<void*> a;
===================================
bug.cc:3: error: parameter packs not expanded with `...':
bug.cc:3: note: 'T'
bug.cc:4: error: parameter packs not expanded with `...':
bug.cc:4: note: 'T'
bug.cc: In instantiation of 'A<void*>':
bug.cc:8: instantiated from here
bug.cc:5: error: type/value mismatch at argument 1 in template parameter list
for 'template<class ... T> struct A<T*>::B'
bug.cc:5: error: expected a type, got '<expression error>'
bug.cc:5: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in tsubst_decl, at cp/pt.c:8091
Please submit a full bug report, [etc.]
Replacing "A<T*>" by "A<T*...>" triggers the following ICE:
bug.cc:4: error: cannot expand 'T* ...' into a fixed-length argument list
bug.cc:9: internal compiler error: in unify, at cp/pt.c:12975
Please submit a full bug report, [etc.]
--
Summary: [4.3 regression] ICE with invalid specialization
involving parameter packs
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code, error-recovery, monitored
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33461
next reply other threads:[~2007-09-17 22:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-17 22:10 reichelt at gcc dot gnu dot org [this message]
2007-09-17 22:10 ` [Bug c++/33461] " reichelt at gcc dot gnu dot org
2007-09-27 12:20 ` pcarlini at suse dot de
2007-09-28 15:39 ` pcarlini at suse dot de
2007-09-30 15:53 ` pcarlini at suse dot de
2007-10-10 18:00 ` mmitchel at gcc dot gnu dot org
2007-10-11 9:40 ` paolo at gcc dot gnu dot org
2007-10-11 9:45 ` pcarlini at suse dot de
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