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134 lines
6.3 KiB
134 lines
6.3 KiB
4 months ago
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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
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void abort() __attribute__((noreturn));
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class Okay {
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int a_;
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};
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class Virtual {
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virtual void foo() { abort(); } // expected-note 4 {{because type 'Virtual' has a virtual member function}}
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};
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class VirtualBase : virtual Okay { // expected-note 4 {{because type 'VirtualBase' has a virtual base class}}
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};
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class Ctor {
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Ctor() { abort(); } // expected-note 2{{because type 'Ctor' has a user-provided default constructor}} expected-note 2{{here}}
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};
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class Ctor2 {
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Ctor2(); // expected-note {{because type 'Ctor2' has a user-provided default constructor}} expected-note 2{{here}}
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};
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class CtorTmpl { // expected-note {{because type 'CtorTmpl' has no default constructor}}
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template<typename T> CtorTmpl(); // expected-note {{implicit default constructor suppressed by user-declared constructor}}
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};
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class CopyCtor { // expected-note 2{{because no constructor can be used to copy an object of type 'const CopyCtor'}}
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CopyCtor(CopyCtor &cc) { abort(); }
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};
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class CopyAssign { // expected-note 2 {{because no assignment operator can be used to copy an object of type 'const CopyAssign'}}
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CopyAssign& operator=(CopyAssign& CA) { abort(); }
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};
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class Dtor {
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~Dtor() { abort(); } // expected-note 2 {{because type 'Dtor' has a user-provided destructor}} expected-note 2{{here}}
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};
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union U1 {
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Virtual v; // expected-error {{union member 'v' has a non-trivial copy constructor}}
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VirtualBase vbase; // expected-error {{union member 'vbase' has a non-trivial copy constructor}}
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Ctor ctor; // expected-error {{union member 'ctor' has a non-trivial default constructor}}
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Ctor2 ctor2; // expected-error {{union member 'ctor2' has a non-trivial default constructor}}
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CtorTmpl ctortmpl; // expected-error {{union member 'ctortmpl' has a non-trivial default constructor}}
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CopyCtor copyctor; // expected-error {{union member 'copyctor' has a non-trivial copy constructor}}
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CopyAssign copyassign; // expected-error {{union member 'copyassign' has a non-trivial copy assignment operator}}
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Dtor dtor; // expected-error {{union member 'dtor' has a non-trivial destructor}}
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Okay okay;
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};
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union U2 {
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struct {
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Virtual v; // expected-note {{because the function selected to copy field of type 'Virtual' is not trivial}}
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} m1; // expected-error {{union member 'm1' has a non-trivial copy constructor}}
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struct {
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VirtualBase vbase; // expected-note {{because the function selected to copy field of type 'VirtualBase' is not trivial}}
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} m2; // expected-error {{union member 'm2' has a non-trivial copy constructor}}
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struct {
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Ctor ctor; // expected-note {{because field of type 'Ctor' has a user-provided default constructor}}
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} m3; // expected-error {{union member 'm3' has a non-trivial default constructor}}
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struct {
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Ctor2 ctor2; // expected-note {{because field of type 'Ctor2' has a user-provided default constructor}}
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} m3a; // expected-error {{union member 'm3a' has a non-trivial default constructor}}
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struct { // expected-note {{no constructor can be used to copy an object of type 'const}}
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CopyCtor copyctor;
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} m4; // expected-error {{union member 'm4' has a non-trivial copy constructor}}
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struct { // expected-note {{no assignment operator can be used to copy an object of type 'const}}
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CopyAssign copyassign;
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} m5; // expected-error {{union member 'm5' has a non-trivial copy assignment operator}}
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struct {
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Dtor dtor; // expected-note {{because field of type 'Dtor' has a user-provided destructor}}
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} m6; // expected-error {{union member 'm6' has a non-trivial destructor}}
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struct {
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Okay okay;
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} m7;
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};
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union U3 {
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struct s1 : Virtual { // expected-note {{because the function selected to copy base class of type 'Virtual' is not trivial}}
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} m1; // expected-error {{union member 'm1' has a non-trivial copy constructor}}
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struct s2 : VirtualBase { // expected-note {{because the function selected to copy base class of type 'VirtualBase' is not trivial}}
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} m2; // expected-error {{union member 'm2' has a non-trivial copy constructor}}
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struct s3 : Ctor { // expected-note {{because base class of type 'Ctor' has a user-provided default constructor}}
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} m3; // expected-error {{union member 'm3' has a non-trivial default constructor}}
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struct s3a : Ctor2 { // expected-note {{because base class of type 'Ctor2' has a user-provided default constructor}}
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} m3a; // expected-error {{union member 'm3a' has a non-trivial default constructor}}
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struct s4 : CopyCtor { // expected-note {{because no constructor can be used to copy an object of type 'const U3::s4'}}
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} m4; // expected-error {{union member 'm4' has a non-trivial copy constructor}}
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struct s5 : CopyAssign { // expected-note {{because no assignment operator can be used to copy an object of type 'const U3::s5'}}
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} m5; // expected-error {{union member 'm5' has a non-trivial copy assignment operator}}
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struct s6 : Dtor { // expected-note {{because base class of type 'Dtor' has a user-provided destructor}}
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} m6; // expected-error {{union member 'm6' has a non-trivial destructor}}
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struct s7 : Okay {
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} m7;
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struct s8 {
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s8(...) = delete; // expected-note {{because it is a variadic function}} expected-warning {{C++11}}
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} m8; // expected-error {{union member 'm8' has a non-trivial default constructor}}
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};
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union U4 {
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static int i1; // expected-warning {{static data member 'i1' in union is a C++11 extension}}
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};
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int U4::i1 = 10;
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union U5 {
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int& i1; // expected-error {{union member 'i1' has reference type 'int &'}}
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};
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union U6 {
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struct S {
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int &i;
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} s; // ok
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};
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template <class A, class B> struct Either {
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bool tag;
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union { // expected-note 6 {{in instantiation of member class}}
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A a;
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B b; // expected-error 6 {{non-trivial}}
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};
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Either(const A& a) : tag(true), a(a) {}
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Either(const B& b) : tag(false), b(b) {}
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};
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void fred() {
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Either<int,Virtual> virt(0); // expected-note {{in instantiation of template}}
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Either<int,VirtualBase> vbase(0); // expected-note {{in instantiation of template}}
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Either<int,Ctor> ctor(0); // expected-note {{in instantiation of template}}
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Either<int,CopyCtor> copyctor(0); // expected-note {{in instantiation of template}}
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Either<int,CopyAssign> copyassign(0); // expected-note {{in instantiation of template}}
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Either<int,Dtor> dtor(0); // expected-note {{in instantiation of template}}
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Either<int,Okay> okay(0);
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}
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