The following invalid code snippet triggers an ICE on mainline and 4.2 branch:
=====================================
template<int> struct A
{
A(int);
};
template<int N> A<N>::A() {}
struct B
{
A<0> a;
};
B b;
=====================================
bug.cc:6: error: prototype for 'A<N>::A()' does not match any in class 'A<N>'
bug.cc:3: error: candidate is: A<N>::A(int)
bug.cc:6: error: template definition of non-template 'A<N>::A()'
bug.cc:13: internal compiler error: in locate_ctor, at cp/method.c:899
Please submit a full bug report, [etc.]
If I replace "A(int);" by "A(0);" I get a slightly different crash:
bug.cc:3: error: expected unqualified-id before numeric constant
bug.cc:3: error: expected `)' before numeric constant
bug.cc:6: error: no 'A<N>::A()' member function declared in class 'A<N>'
bug.cc:6: error: template definition of non-template 'A<N>::A()'
bug.cc:13: internal compiler error: vector VEC(tree,base) index domain error,
in locate_ctor at cp/method.c:889
Please submit a full bug report, [etc.]
--
Summary: [4.2/4.3 regression] ICE on invalid constructor
definition
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=31131
