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| // RUN: %clang_cc1 -std=c++11 -verify %s
//
// Note: [class.inhctor] was removed by P0136R1. This tests the new behavior
// for the wording that used to be there.
template<int> struct X {};
// A[n inheriting] constructor [...] has the same access as the corresponding
// constructor [in the base class].
struct A {
public:
A(X<0>) {}
protected:
A(X<1>) {} // expected-note 2{{declared protected here}}
private:
A(X<2>) {} // expected-note 2{{declared private here}}
friend class FA;
};
struct B : A {
using A::A;
friend class FB;
};
B b0{X<0>{}};
B b1{X<1>{}}; // expected-error {{calling a protected constructor}}
B b2{X<2>{}}; // expected-error {{calling a private constructor}}
struct C : B {
C(X<0> x) : B(x) {}
C(X<1> x) : B(x) {}
};
struct FB {
B b0{X<0>{}};
B b1{X<1>{}};
};
struct FA : A {
using A::A;
};
FA fa0{X<0>{}};
FA fa1{X<1>{}}; // expected-error {{calling a protected constructor}}
FA fa2{X<2>{}}; // expected-error {{calling a private constructor}}
// It is deleted if the corresponding constructor [...] is deleted.
struct G {
G(int) = delete; // expected-note {{'G' has been explicitly marked deleted here}}
template<typename T> G(T*) = delete; // expected-note {{'G<const char>' has been explicitly marked deleted here}}
};
struct H : G {
using G::G;
};
H h1(5); // expected-error {{call to deleted constructor of 'H'}}
H h2("foo"); // expected-error {{call to deleted constructor of 'H'}}
// Core defect: It is also deleted if multiple base constructors generate the
// same signature.
namespace DRnnnn {
struct A {
constexpr A(int, float = 0) {}
explicit A(int, int = 0) {} // expected-note {{candidate}}
A(int, int, int = 0) = delete; // expected-note {{deleted}}
};
struct B : A {
using A::A; // expected-note 2{{inherited here}}
};
constexpr B b0(0, 0.0f); // ok, constexpr
B b1(0, 1); // expected-error {{call to constructor of 'DRnnnn::B' is ambiguous}}
}
|