The following valid code snippet is rejected since GCC 4.0.3.
On mainline it even triggers an ICE:
=========================================================
struct A
{
template<typename T> operator T() { return T(); }
};
template<int> void foo()
{
A().operator int();
}
void bar()
{
foo<0>();
}
=========================================================
bug.cc: In function 'void foo() [with int <anonymous> = 0]':
bug.cc:13: instantiated from here
bug.cc:8: error: invalid use of template type parameter
bug.cc: In member function 'A::operator T() [with T = T]':
bug.cc:8: instantiated from 'void foo() [with int <anonymous> = 0]'
bug.cc:13: instantiated from here
bug.cc:3: internal compiler error: in dependent_type_p, at cp/pt.c:12523
Please submit a full bug report, [etc.]
The code compiles fine, if I turn foo into a regular function.
--
Summary: [4.0/4.1/4.2 regression] Trouble with templated type
conversion operator
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, rejects-valid, 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=28557
