528 lines
23 KiB
C++
528 lines
23 KiB
C++
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// RUN: %clang_cc1 -std=c++98 -triple x86_64-unknown-unknown %s -verify=expected,cxx98-14,cxx98 -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-unknown %s -verify=expected,cxx98-14,since-cxx11,cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: %clang_cc1 -std=c++14 -triple x86_64-unknown-unknown %s -verify=expected,since-cxx14,cxx98-14,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-unknown %s -verify=expected,since-cxx14,since-cxx17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-unknown %s -verify=expected,since-cxx14,since-cxx20,since-cxx17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: %clang_cc1 -std=c++23 -triple x86_64-unknown-unknown %s -verify=expected,since-cxx14,since-cxx20,since-cxx17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: %clang_cc1 -std=c++2c -triple x86_64-unknown-unknown %s -verify=expected,since-cxx14,since-cxx20,since-cxx17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
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#if __cplusplus == 199711L
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#define static_assert(...) __extension__ _Static_assert(__VA_ARGS__)
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// cxx98-error@-1 {{variadic macros are a C99 feature}}
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#endif
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#if __cplusplus >= 201103L
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namespace std {
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typedef decltype(sizeof(int)) size_t;
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template<typename E> class initializer_list {
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const E *begin;
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size_t size;
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public:
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initializer_list();
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};
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} // std
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#endif
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namespace dr1601 { // dr1601: 10
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enum E : char { e };
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// cxx98-error@-1 {{enumeration types with a fixed underlying type are a C++11 extension}}
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void f(char);
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void f(int);
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void g() {
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f(e);
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}
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} // namespace dr1601
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namespace dr1611 { // dr1611: dup 1658
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struct A { A(int); };
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struct B : virtual A { virtual void f() = 0; };
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struct C : B { C() : A(0) {} void f(); };
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C c;
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}
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namespace dr1631 { // dr1631: 3.7
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#if __cplusplus >= 201103L
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// Incorrect overload resolution for single-element initializer-list
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struct A { int a[1]; };
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struct B { B(int); };
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void f(B, int);
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void f(B, int, int = 0);
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void f(int, A);
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void test() {
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f({0}, {{1}});
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// since-cxx11-warning@-1 {{braces around scalar initializer}}
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}
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namespace with_error {
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void f(B, int); // TODO: expected- note {{candidate function}}
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void f(int, A); // #dr1631-f
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void f(int, A, int = 0); // #dr1631-f-int
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void test() {
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f({0}, {{1}});
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// since-cxx11-error@-1 {{call to 'f' is ambiguous}}
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// since-cxx11-note@#dr1631-f {{candidate function}}
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// since-cxx11-note@#dr1631-f-int {{candidate function}}
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}
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}
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#endif
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}
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namespace dr1638 { // dr1638: 3.1
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#if __cplusplus >= 201103L
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template<typename T> struct A {
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enum class E; // #dr1638-E
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enum class F : T; // #dr1638-F
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};
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template<> enum class A<int>::E;
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template<> enum class A<int>::E {};
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template<> enum class A<int>::F : int;
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template<> enum class A<int>::F : int {};
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template<> enum class A<short>::E : int;
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template<> enum class A<short>::E : int {};
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template<> enum class A<short>::F;
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// since-cxx11-error@-1 {{enumeration redeclared with different underlying type 'int' (was 'short')}}
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// since-cxx11-note@#dr1638-F {{previous declaration is here}}
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template<> enum class A<char>::E : char;
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// since-cxx11-error@-1 {{enumeration redeclared with different underlying type 'char' (was 'int')}}
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// since-cxx11-note@#dr1638-E {{previous declaration is here}}
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template<> enum class A<char>::F : int;
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// since-cxx11-error@-1 {{enumeration redeclared with different underlying type 'int' (was 'char')}}
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// since-cxx11-note@#dr1638-F {{previous declaration is here}}
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enum class A<unsigned>::E;
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// since-cxx11-error@-1 {{template specialization requires 'template<>'}}
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// since-cxx11-error@-2 {{forward declaration of enum class cannot have a nested name specifier}}
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template enum class A<unsigned>::E;
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// since-cxx11-error@-1 {{enumerations cannot be explicitly instantiated}}
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enum class A<unsigned>::E *e;
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// since-cxx11-error@-1 {{reference to enumeration must use 'enum' not 'enum class'}}
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struct B {
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friend enum class A<unsigned>::E;
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// since-cxx11-error@-1 {{reference to enumeration must use 'enum' not 'enum class'}}
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};
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#endif
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}
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namespace dr1645 { // dr1645: 3.9
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#if __cplusplus >= 201103L
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struct A {
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constexpr A(int, float = 0); // #dr1645-int-float
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explicit A(int, int = 0); // #dr1645-int-int
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A(int, int, int = 0) = delete; // #dr1645-int-int-int
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};
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struct B : A {
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using A::A; // #dr1645-using
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};
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constexpr B a(0);
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// since-cxx11-error@-1 {{call to constructor of 'const B' is ambiguous}}
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// since-cxx11-note@#dr1645-int-float {{candidate inherited constructor}}
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// since-cxx11-note@#dr1645-using {{constructor from base class 'A' inherited here}}
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// since-cxx11-note@#dr1645-int-int {{candidate inherited constructor}}
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// since-cxx11-note@#dr1645-using {{constructor from base class 'A' inherited here}}
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constexpr B b(0, 0);
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// since-cxx11-error@-1 {{call to constructor of 'const B' is ambiguous}}
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// since-cxx11-note@#dr1645-int-int {{candidate inherited constructor}}
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// since-cxx11-note@#dr1645-using {{constructor from base class 'A' inherited here}}
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// since-cxx11-note@#dr1645-int-int-int {{candidate inherited constructor has been explicitly deleted}}
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// since-cxx11-note@#dr1645-using {{constructor from base class 'A' inherited here}}
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#endif
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}
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namespace dr1652 { // dr1652: 3.6
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int a, b;
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int arr[&a + 1 == &b ? 1 : 2];
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// expected-error@-1 {{variable length arrays in C++ are a Clang extension}}
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// expected-note@-2 {{comparison against pointer '&a + 1' that points past the end of a complete object has unspecified value}}
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// expected-error@-3 {{variable length array declaration not allowed at file scope}}
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}
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namespace dr1653 { // dr1653: 4 c++17
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void f(bool b) {
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++b;
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// cxx98-14-warning@-1 {{incrementing expression of type bool is deprecated and incompatible with C++17}}
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// since-cxx17-error@-2 {{SO C++17 does not allow incrementing expression of type bool}}
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b++;
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// cxx98-14-warning@-1 {{incrementing expression of type bool is deprecated and incompatible with C++17}}
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// since-cxx17-error@-2 {{SO C++17 does not allow incrementing expression of type bool}}
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--b;
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// expected-error@-1 {{cannot decrement expression of type bool}}
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b--;
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// expected-error@-1 {{cannot decrement expression of type bool}}
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b += 1; // ok
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b -= 1; // ok
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}
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}
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namespace dr1658 { // dr1658: 5
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namespace DefCtor {
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class A { A(); }; // #dr1658-A1
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class B { ~B(); }; // #dr1658-B1
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// The stars align! An abstract class does not construct its virtual bases.
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struct C : virtual A { C(); virtual void foo() = 0; };
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C::C() = default; // ok, not deleted
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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struct D : virtual B { D(); virtual void foo() = 0; };
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D::D() = default; // ok, not deleted
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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// In all other cases, we are not so lucky.
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struct E : A { E(); virtual void foo() = 0; }; // #dr1658-E1
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E::E() = default; // #dr1658-E1-ctor
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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// cxx98-error@-2 {{base class 'A' has private default constructor}}
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// cxx98-note@-3 {{in defaulted default constructor for 'dr1658::DefCtor::E' first required here}}
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// cxx98-note@#dr1658-A1 {{implicitly declared private here}}
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// since-cxx11-error@#dr1658-E1-ctor {{defaulting this default constructor would delete it after its first declaration}}
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// since-cxx11-note@#dr1658-E1 {{default constructor of 'E' is implicitly deleted because base class 'A' has an inaccessible default constructor}}
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struct F : virtual A { F(); }; // #dr1658-F1
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F::F() = default; // #dr1658-F1-ctor
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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// cxx98-error@-2 {{inherited virtual base class 'A' has private default constructor}}
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// cxx98-note@-3 {{in defaulted default constructor for 'dr1658::DefCtor::F' first required here}}
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// cxx98-note@#dr1658-A1 {{implicitly declared private here}}
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// since-cxx11-error@#dr1658-F1-ctor {{defaulting this default constructor would delete it after its first declaration}}
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// since-cxx11-note@#dr1658-F1 {{default constructor of 'F' is implicitly deleted because base class 'A' has an inaccessible default constructor}}
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struct G : B { G(); virtual void foo() = 0; }; // #dr1658-G1
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G::G() = default; // #dr1658-G1-ctor
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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// cxx98-error@#dr1658-G1 {{base class 'B' has private destructor}}
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// cxx98-note@#dr1658-G1-ctor {{in defaulted default constructor for 'dr1658::DefCtor::G' first required here}}
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// cxx98-note@#dr1658-B1 {{implicitly declared private here}}
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// since-cxx11-error@#dr1658-G1-ctor {{defaulting this default constructor would delete it after its first declaration}}
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// since-cxx11-note@#dr1658-G1 {{default constructor of 'G' is implicitly deleted because base class 'B' has an inaccessible destructor}}
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struct H : virtual B { H(); }; // #dr1658-H1
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H::H() = default; // #dr1658-H1-ctor
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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// cxx98-error@#dr1658-H1 {{base class 'B' has private destructor}}
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// cxx98-note@#dr1658-H1-ctor {{in defaulted default constructor for 'dr1658::DefCtor::H' first required here}}
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// cxx98-note@#dr1658-B1 {{implicitly declared private here}}
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// since-cxx11-error@#dr1658-H1-ctor {{defaulting this default constructor would delete it after its first declaration}}
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// since-cxx11-note@#dr1658-H1 {{default constructor of 'H' is implicitly deleted because base class 'B' has an inaccessible destructor}}
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}
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namespace Dtor {
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class B { ~B(); }; // #dr1658-B2
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struct D : virtual B { ~D(); virtual void foo() = 0; };
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D::~D() = default; // ok, not deleted
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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struct G : B { ~G(); virtual void foo() = 0; }; // #dr1658-G2
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G::~G() = default; // #dr1658-G2-dtor
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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// cxx98-error@#dr1658-G2 {{base class 'B' has private destructor}}
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// cxx98-note@#dr1658-G2-dtor {{in defaulted destructor for 'dr1658::Dtor::G' first required here}}
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// cxx98-note@#dr1658-B2 {{implicitly declared private here}}
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// since-cxx11-error@#dr1658-G2-dtor {{defaulting this destructor would delete it after its first declaration}}
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// since-cxx11-note@#dr1658-G2 {{destructor of 'G' is implicitly deleted because base class 'B' has an inaccessible destructor}}
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struct H : virtual B { ~H(); }; // #dr1658-H2
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H::~H() = default; // #dr1658-H2-dtor
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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// cxx98-error@#dr1658-H2 {{base class 'B' has private destructor}}
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// cxx98-note@#dr1658-H2-dtor {{in defaulted destructor for 'dr1658::Dtor::H' first required here}}
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// cxx98-note@#dr1658-B2 {{implicitly declared private here}}
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// since-cxx11-error@#dr1658-H2-dtor {{defaulting this destructor would delete it after its first declaration}}
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// since-cxx11-note@#dr1658-H2 {{destructor of 'H' is implicitly deleted because base class 'B' has an inaccessible destructor}}
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}
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namespace MemInit {
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struct A { A(int); }; // #dr1658-A3
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struct B : virtual A {
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B() {}
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virtual void f() = 0;
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};
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struct C : virtual A {
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C() {}
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// expected-error@-1 {{constructor for 'dr1658::MemInit::C' must explicitly initialize the base class 'A' which does not have a default constructor}}
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// expected-note@#dr1658-A3 {{'dr1658::MemInit::A' declared here}}
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};
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}
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namespace CopyCtorParamType {
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struct A { A(A&); };
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struct B : virtual A { virtual void f() = 0; };
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struct C : virtual A { virtual void f(); };
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struct D : A { virtual void f() = 0; };
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struct X {
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friend B::B(const B&) throw();
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friend C::C(C&);
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friend D::D(D&);
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};
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}
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namespace CopyCtor {
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class A { A(const A&); A(A&&); }; // #dr1658-A5
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// cxx98-error@-1 {{rvalue references are a C++11 extension}}
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struct C : virtual A { C(const C&); C(C&&); virtual void foo() = 0; };
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// cxx98-error@-1 {{rvalue references are a C++11 extension}}
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C::C(const C&) = default;
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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C::C(C&&) = default;
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// cxx98-error@-1 {{rvalue references are a C++11 extension}}
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// cxx98-error@-2 {{defaulted function definitions are a C++11 extension}}
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struct E : A { E(const E&); E(E&&); virtual void foo() = 0; }; // #dr1658-E5
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// cxx98-error@-1 {{rvalue references are a C++11 extension}}
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E::E(const E&) = default; // #dr1658-E5-copy-ctor
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// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
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// cxx98-error@-2 {{base class 'A' has private copy constructor}}
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// cxx98-note@-3 {{in defaulted copy constructor for 'dr1658::CopyCtor::E' first required here}}
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// cxx98-note@#dr1658-A5 {{implicitly declared private here}}
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// since-cxx11-error@#dr1658-E5-copy-ctor {{defaulting this copy constructor would delete it after its first declaration}}
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// since-cxx11-note@#dr1658-E5 {{copy constructor of 'E' is implicitly deleted because base class 'A' has an inaccessible copy constructor}}
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E::E(E&&) = default; // #dr1658-E5-move-ctor
|
||
|
|
// cxx98-error@-1 {{rvalue references are a C++11 extension}}
|
||
|
|
// cxx98-error@-2 {{defaulted function definitions are a C++11 extension}}
|
||
|
|
// cxx98-error@-3 {{base class 'A' has private move constructor}}
|
||
|
|
// cxx98-note@-4 {{in defaulted move constructor for 'dr1658::CopyCtor::E' first required here}}
|
||
|
|
// cxx98-note@#dr1658-A5 {{implicitly declared private here}}
|
||
|
|
// since-cxx11-error@#dr1658-E5-move-ctor {{defaulting this move constructor would delete it after its first declaration}}
|
||
|
|
// since-cxx11-note@#dr1658-E5 {{move constructor of 'E' is implicitly deleted because base class 'A' has an inaccessible move constructor}}
|
||
|
|
struct F : virtual A { F(const F&); F(F&&); }; // #dr1658-F5
|
||
|
|
// cxx98-error@-1 {{rvalue references are a C++11 extension}}
|
||
|
|
F::F(const F&) = default; // #dr1658-F5-copy-ctor
|
||
|
|
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
|
||
|
|
// cxx98-error@-2 {{inherited virtual base class 'A' has private copy constructor}}
|
||
|
|
// cxx98-note@-3 {{in defaulted copy constructor for 'dr1658::CopyCtor::F' first required here}}
|
||
|
|
// cxx98-note@#dr1658-A5 {{implicitly declared private here}}
|
||
|
|
// since-cxx11-error@#dr1658-F5-copy-ctor {{defaulting this copy constructor would delete it after its first declaration}}
|
||
|
|
// since-cxx11-note@#dr1658-F5 {{copy constructor of 'F' is implicitly deleted because base class 'A' has an inaccessible copy constructor}}
|
||
|
|
F::F(F&&) = default; // #dr1658-F5-move-ctor
|
||
|
|
// cxx98-error@-1 {{rvalue references are a C++11 extension}}
|
||
|
|
// cxx98-error@-2 {{defaulted function definitions are a C++11 extension}}
|
||
|
|
// cxx98-error@-3 {{inherited virtual base class 'A' has private move constructor}}
|
||
|
|
// cxx98-note@-4 {{in defaulted move constructor for 'dr1658::CopyCtor::F' first required here}}
|
||
|
|
// cxx98-note@#dr1658-A5 {{implicitly declared private here}}
|
||
|
|
// since-cxx11-error@#dr1658-F5-move-ctor {{defaulting this move constructor would delete it after its first declaration}}
|
||
|
|
// since-cxx11-note@#dr1658-F5 {{move constructor of 'F' is implicitly deleted because base class 'A' has an inaccessible move constructor}}
|
||
|
|
}
|
||
|
|
|
||
|
|
// assignment case is superseded by dr2180
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1672 { // dr1672: 7
|
||
|
|
struct Empty {};
|
||
|
|
struct A : Empty {};
|
||
|
|
struct B { Empty e; };
|
||
|
|
struct C : A { B b; int n; };
|
||
|
|
struct D : A { int n; B b; };
|
||
|
|
|
||
|
|
static_assert(!__is_standard_layout(C), "");
|
||
|
|
static_assert(__is_standard_layout(D), "");
|
||
|
|
|
||
|
|
struct E { B b; int n; };
|
||
|
|
struct F { int n; B b; };
|
||
|
|
union G { B b; int n; };
|
||
|
|
union H { int n; B b; };
|
||
|
|
|
||
|
|
struct X {};
|
||
|
|
template<typename T> struct Y : X, A { T t; };
|
||
|
|
|
||
|
|
static_assert(!__is_standard_layout(Y<E>), "");
|
||
|
|
static_assert(__is_standard_layout(Y<F>), "");
|
||
|
|
static_assert(!__is_standard_layout(Y<G>), "");
|
||
|
|
static_assert(!__is_standard_layout(Y<H>), "");
|
||
|
|
static_assert(!__is_standard_layout(Y<X>), "");
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1684 { // dr1684: 3.6
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
struct NonLiteral { // #dr1684-struct
|
||
|
|
NonLiteral();
|
||
|
|
constexpr int f() { return 0; }
|
||
|
|
// cxx11-warning@-1 {{'constexpr' non-static member function will not be implicitly 'const' in C++14; add 'const' to avoid a change in behavior}}
|
||
|
|
};
|
||
|
|
constexpr int f(NonLiteral &) { return 0; }
|
||
|
|
constexpr int f(NonLiteral) { return 0; }
|
||
|
|
// since-cxx11-error@-1 {{constexpr function's 1st parameter type 'NonLiteral' is not a literal type}}
|
||
|
|
// since-cxx11-note@#dr1684-struct {{'NonLiteral' is not literal because it is not an aggregate and has no constexpr constructors other than copy or move constructors}}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1687 { // dr1687: 7
|
||
|
|
template<typename T> struct To {
|
||
|
|
operator T(); // #dr1687-op-T
|
||
|
|
};
|
||
|
|
|
||
|
|
int *a = To<int*>() + 100.0;
|
||
|
|
// expected-error@-1 {{invalid operands to binary expression ('To<int *>' and 'double')}}
|
||
|
|
// expected-note@#dr1687-op-T {{first operand was implicitly converted to type 'int *'}}
|
||
|
|
// since-cxx20-note@#dr1687-op-T {{second operand was implicitly converted to type 'dr1687::E2'}}
|
||
|
|
int *b = To<int*>() + To<double>();
|
||
|
|
// expected-error@-1 {{invalid operands to binary expression ('To<int *>' and 'To<double>')}}
|
||
|
|
// expected-note@#dr1687-op-T {{first operand was implicitly converted to type 'int *'}}
|
||
|
|
// expected-note@#dr1687-op-T {{second operand was implicitly converted to type 'double'}}
|
||
|
|
|
||
|
|
#if __cplusplus >= 202002L
|
||
|
|
enum E1 {};
|
||
|
|
enum E2 {};
|
||
|
|
auto c = To<E1>() <=> To<E2>();
|
||
|
|
// since-cxx20-error@-1 {{invalid operands to binary expression ('To<E1>' and 'To<E2>')}}
|
||
|
|
// since-cxx20-note@#dr1687-op-T {{operand was implicitly converted to type 'dr1687::E}}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1690 { // dr1690: 9
|
||
|
|
// See also the various tests in "CXX/basic/basic.lookup/basic.lookup.argdep".
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
namespace N {
|
||
|
|
static auto lambda = []() { struct S {} s; return s; };
|
||
|
|
void f(decltype(lambda()));
|
||
|
|
}
|
||
|
|
|
||
|
|
void test() {
|
||
|
|
auto s = N::lambda();
|
||
|
|
f(s); // ok
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1691 { // dr1691: 9
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
namespace N {
|
||
|
|
namespace M {
|
||
|
|
enum E : int;
|
||
|
|
void f(E);
|
||
|
|
}
|
||
|
|
enum M::E : int {};
|
||
|
|
void g(M::E); // #dr1691-g
|
||
|
|
}
|
||
|
|
void test() {
|
||
|
|
N::M::E e;
|
||
|
|
f(e); // ok
|
||
|
|
g(e);
|
||
|
|
// since-cxx11-error@-1 {{use of undeclared identifier 'g'; did you mean 'N::g'?}}
|
||
|
|
// since-cxx11-note@#dr1691-g {{'N::g' declared here}}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1692 { // dr1692: 9
|
||
|
|
namespace N {
|
||
|
|
struct A {
|
||
|
|
struct B {
|
||
|
|
struct C {};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
void f(A::B::C);
|
||
|
|
}
|
||
|
|
void test() {
|
||
|
|
N::A::B::C c;
|
||
|
|
f(c); // ok
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr1696 { // dr1696: 7
|
||
|
|
namespace std_examples {
|
||
|
|
#if __cplusplus >= 201402L
|
||
|
|
extern struct A a;
|
||
|
|
struct A {
|
||
|
|
const A &x = { A{a, a} };
|
||
|
|
const A &y = { A{} };
|
||
|
|
// since-cxx14-error@-1 {{default member initializer for 'y' needed within definition of enclosing class 'A' outside of member functions}}
|
||
|
|
// since-cxx14-note@-2 {{default member initializer declared here}}
|
||
|
|
};
|
||
|
|
A a{a, a};
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
struct A { A(); ~A(); };
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
struct B {
|
||
|
|
A &&a; // #dr1696-a
|
||
|
|
B() : a{} {}
|
||
|
|
// since-cxx11-error@-1 {{reference member 'a' binds to a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
||
|
|
// since-cxx11-note@#dr1696-a {{reference member declared here}}
|
||
|
|
} b;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct C {
|
||
|
|
C();
|
||
|
|
const A &a; // #dr1696-C-a
|
||
|
|
};
|
||
|
|
C::C() : a(A()) {}
|
||
|
|
// expected-error@-1 {{reference member 'a' binds to a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
||
|
|
// expected-note@#dr1696-C-a {{reference member declared here}}
|
||
|
|
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
// This is OK in C++14 onwards, per DR1815, though we don't support that yet:
|
||
|
|
// D1 d1 = {};
|
||
|
|
// is equivalent to
|
||
|
|
// D1 d1 = {A()};
|
||
|
|
// ... which lifetime-extends the A temporary.
|
||
|
|
struct D1 {
|
||
|
|
// cxx11-error@-1 {{reference member 'a' binds to a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
||
|
|
// cxx11-note@#dr1696-d1 {{in implicit default constructor for 'dr1696::D1' first required here}}
|
||
|
|
// cxx11-note@#dr1696-D1-a {{initializing field 'a' with default member initializer}}
|
||
|
|
const A &a = A(); // #dr1696-D1-a
|
||
|
|
};
|
||
|
|
D1 d1 = {}; // #dr1696-d1
|
||
|
|
// since-cxx14-warning@-1 {{lifetime extension of temporary created by aggregate initialization using a default member initializer is not yet supported; lifetime of temporary will end at the end of the full-expression}}
|
||
|
|
// since-cxx14-note@#dr1696-D1-a {{initializing field 'a' with default member initializer}}
|
||
|
|
|
||
|
|
struct D2 {
|
||
|
|
const A &a = A(); // #dr1696-D2-a
|
||
|
|
D2() {}
|
||
|
|
// since-cxx11-error@-1 {{reference member 'a' binds to a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
||
|
|
// since-cxx11-note@#dr1696-D2-a {{initializing field 'a' with default member initializer}}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct D3 {
|
||
|
|
// since-cxx11-error@-1 {{reference member 'a' binds to a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
||
|
|
// since-cxx11-note@#dr1696-d3 {{in implicit default constructor for 'dr1696::D3' first required here}}
|
||
|
|
// since-cxx11-note@#dr1696-D3-a {{initializing field 'a' with default member initializer}}
|
||
|
|
const A &a = A(); // #dr1696-D3-a
|
||
|
|
};
|
||
|
|
D3 d3; // #dr1696-d3
|
||
|
|
|
||
|
|
struct haslist1 {
|
||
|
|
std::initializer_list<int> il; // #dr1696-il-1
|
||
|
|
haslist1(int i) : il{i, 2, 3} {}
|
||
|
|
// since-cxx11-error@-1 {{backing array for 'std::initializer_list' member 'il' is a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
||
|
|
// since-cxx11-note@#dr1696-il-1 {{'std::initializer_list' member declared here}}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct haslist2 {
|
||
|
|
std::initializer_list<int> il; // #dr1696-il-2
|
||
|
|
haslist2();
|
||
|
|
};
|
||
|
|
haslist2::haslist2() : il{1, 2} {}
|
||
|
|
// since-cxx11-error@-1 {{backing array for 'std::initializer_list' member 'il' is a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
||
|
|
// since-cxx11-note@#dr1696-il-2 {{'std::initializer_list' member declared here}}
|
||
|
|
|
||
|
|
struct haslist3 {
|
||
|
|
std::initializer_list<int> il = {1, 2, 3};
|
||
|
|
};
|
||
|
|
|
||
|
|
struct haslist4 {
|
||
|
|
// since-cxx11-error@-1 {{backing array for 'std::initializer_list' member 'il' is a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
||
|
|
// since-cxx11-note@#dr1696-hl4 {{in implicit default constructor for 'dr1696::haslist4' first required here}}
|
||
|
|
// since-cxx11-note@#dr1696-il-4 {{initializing field 'il' with default member initializer}}
|
||
|
|
std::initializer_list<int> il = {1, 2, 3}; // #dr1696-il-4
|
||
|
|
};
|
||
|
|
haslist4 hl4; // #dr1696-hl4
|
||
|
|
|
||
|
|
struct haslist5 {
|
||
|
|
std::initializer_list<int> il = {1, 2, 3}; // #dr1696-il-5
|
||
|
|
haslist5() {}
|
||
|
|
// since-cxx11-error@-1 {{backing array for 'std::initializer_list' member 'il' is a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
||
|
|
// since-cxx11-note@#dr1696-il-5 {{nitializing field 'il' with default member initializer}}
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
}
|