// Generic lambda type dependence test part from N3690 5.1.2.12 // { dg-do compile { target c++1y } } void f(int, const int (&)[2] = {}) { } // #1 void f(const int&, const int (&)[1]) { } // #2 void test() { const int x = 17; auto g = [](auto a) { f(x); // OK: calls #1, does not capture x }; auto g2 = [=](auto a) { int selector[sizeof(a) == 1 ? 1 : 2]{}; f(x, selector); // OK: is a dependent expression, so captures x }; } struct S { struct N { auto test () { return 7.f; } }; }; #include int main() { auto f = [] (T const& s) mutable { typename T::N x; return x.test (); }; auto g = [] (auto const& s) { typename std::decay::type::N x; return x.test (); }; S i; f(i); g(i); }