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