The following invalid testcase triggers an ICE since at least GCC 2.95.3:
=========================================
template<int> struct A
{
friend int foo();
};
void foo() { A<0> a; }
=========================================
bug.cc: In instantiation of 'A<0>':
bug.cc:6: instantiated from here
bug.cc:3: error: new declaration 'int foo()'
bug.cc:6: error: ambiguates old declaration 'void foo()'
bug.cc: In function 'int foo()':
bug.cc:6: internal compiler error: Segmentation fault
Please submit a full bug report, [etc.]
--
Summary: ICE with incompatible friend declaration
Product: gcc
Version: 4.2.0
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=28260
