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// DR 1518
// { dg-do compile { target c++11 } }
struct A {
explicit A() = default;
};
struct B : A {
explicit B() = default;
};
struct C {
explicit C();
};
struct D : A {
C c;
explicit D() = default;
};
template<typename T> void f() {
T t = {}; // { dg-error "explicit" }
}
template<typename T> void g() {
void x(T t);
x({}); // { dg-error "explicit" }
}
int main()
{
f<A>(); // { dg-message "required from here" }
f<B>(); // { dg-message "required from here" }
f<C>(); // { dg-message "required from here" }
f<D>(); // { dg-message "required from here" }
g<A>(); // { dg-message "required from here" }
g<B>(); // { dg-message "required from here" }
g<C>(); // { dg-message "required from here" }
g<D>(); // { dg-message "required from here" }
}
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