[Bug c++/51833] ICE in tsubst_copy, at cp/pt.c:11333

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51833

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-01-12 
20:43:04 UTC ---
Further reduced

struct function
{
  template<typename T>
    function(T) { }
};

class Foo {
public:
  template<typename>
    void dostuff(function callback = []() { }) { }
};

int main() {
  Foo foo;
  foo.dostuff<int>();
}