119 lines
2.5 KiB
C++
119 lines
2.5 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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class Base { // expected-error {{cannot define the implicit copy assignment operator for 'Base', because non-static reference member 'ref' cannot use copy assignment operator}} \
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// expected-warning{{class 'Base' does not declare any constructor to initialize its non-modifiable members}}
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int &ref; // expected-note {{declared here}} \
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// expected-note{{reference member 'ref' will never be initialized}}
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};
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class X : Base { // // expected-error {{cannot define the implicit copy assignment operator for 'X', because non-static const member 'cint' cannot use copy assignment operator}} \
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// expected-note{{assignment operator for 'Base' first required here}}
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public:
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X();
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const int cint; // expected-note {{declared here}}
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};
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struct Y : X {
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Y();
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Y& operator=(const Y&);
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Y& operator=(volatile Y&);
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Y& operator=(const volatile Y&);
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Y& operator=(Y&);
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};
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class Z : Y {};
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Z z1;
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Z z2;
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// Test1
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void f(X x, const X cx) {
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x = cx; // expected-note{{assignment operator for 'X' first required here}}
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x = cx;
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z1 = z2;
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}
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// Test2
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class T {};
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T t1;
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T t2;
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void g() {
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t1 = t2;
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}
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// Test3
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class V {
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public:
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V();
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V &operator = (V &b);
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};
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class W : V {};
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W w1, w2;
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void h() {
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w1 = w2;
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}
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// Test4
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class B1 {
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public:
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B1();
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B1 &operator = (B1 b);
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};
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class D1 : B1 {};
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D1 d1, d2;
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void i() {
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d1 = d2;
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}
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// Test5
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class E1 { // expected-error{{cannot define the implicit copy assignment operator for 'E1', because non-static const member 'a' cannot use copy assignment operator}}
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public:
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const int a; // expected-note{{declared here}}
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E1() : a(0) {}
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};
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E1 e1, e2;
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void j() {
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e1 = e2; // expected-note{{assignment operator for 'E1' first required here}}
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}
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namespace ProtectedCheck {
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struct X {
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protected:
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X &operator=(const X&); // expected-note{{declared protected here}}
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};
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struct Y : public X { };
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void f(Y y) { y = y; }
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struct Z { // expected-error{{'operator=' is a protected member of 'ProtectedCheck::X'}}
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X x;
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};
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void f(Z z) { z = z; } // expected-note{{implicit copy assignment operator}}
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}
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namespace MultiplePaths {
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struct X0 {
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X0 &operator=(const X0&);
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};
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struct X1 : public virtual X0 { };
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struct X2 : X0, X1 { }; // expected-warning{{direct base 'MultiplePaths::X0' is inaccessible due to ambiguity:\n struct MultiplePaths::X2 -> struct MultiplePaths::X0\n struct MultiplePaths::X2 -> struct MultiplePaths::X1 -> struct MultiplePaths::X0}}
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void f(X2 x2) { x2 = x2; }
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}
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