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// Testcase from P0136
// { dg-do compile { target c++11 } }
struct B1 {
template <class... Ts>
B1(int, Ts...) { }
};
struct B2 {
B2(double) { }
};
int get();
struct D1 : B1 { // { dg-message "B1::B1" }
using B1::B1; // inherits B1(int, ...)
int x;
int y = get();
};
void test() {
D1 d(2, 3, 4); // OK: B1 is initialized by calling B1(2, 3, 4),
// then d.x is default-initialized (no initialization is performed),
// then d.y is initialized by calling get()
D1 e; // { dg-error "" } D1 has a deleted default constructor
}
struct D2 : B2 {
using B2::B2; // { dg-message "B1::B1" }
B1 b;
};
D2 f(1.0); // { dg-error "" } B1 has no default constructor
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