http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49785
Summary: [C++0x] ICE in coerce_template_parms
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ada
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: ja...@gcc.gnu.org
CC: ja...@gcc.gnu.org
template <typename, typename ...> struct B;
template <typename> class A;
template <typename R, typename ... S>
struct A <R (S ...)> : public B <R, , S ...>
{
struct C {};
template <typename D> A (D, C = C ());
R operator () (...);
};
template <typename R, typename ... S, typename T>
auto operator >> (A <R (S ...)>, T)->A <decltype ((*((R *) nullptr))) (S ...)>
{
[]() {};
}
int
main ()
{
A <int (int, int)> a = [](int, int) {};
auto b = [](){};
(a >> b) (3, 5);
}
ICEs with -std=c++0x:
rh720161.ii: In instantiation of ‘A<decltype (*(R*)(nullptr))(S ...)>
operator>>(A<R(S ...)>, T) [with R = int, S = {int, int}, T =
main()::<lambda()>, decltype (*(R*)(nullptr)) = int&]’:
rh720161.ii:23:9: required from here
rh720161.ii:15:9: internal compiler error: tree check: accessed elt 6 of
tree_vec with 3 elts in coerce_template_parms, at cp/pt.c:6695
No idea whether I've reduced it correctly, the original is from
https://bugzilla.redhat.com/720161 attachment.
