forked from OSchip/llvm-project
428 lines
14 KiB
C++
428 lines
14 KiB
C++
// RUN: %clang_cc1 -std=c++98 -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
|
|
// RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
|
|
// RUN: %clang_cc1 -std=c++14 -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
|
|
// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
|
|
// RUN: %clang_cc1 -std=c++2a -triple x86_64-unknown-unknown %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
|
|
|
|
#if __cplusplus < 201103L
|
|
// expected-error@+1 {{variadic macro}}
|
|
#define static_assert(...) __extension__ _Static_assert(__VA_ARGS__)
|
|
#endif
|
|
|
|
#if __cplusplus >= 201103L
|
|
namespace std {
|
|
typedef decltype(sizeof(int)) size_t;
|
|
|
|
template<typename E> class initializer_list {
|
|
const E *begin;
|
|
size_t size;
|
|
|
|
public:
|
|
initializer_list();
|
|
};
|
|
} // std
|
|
#endif
|
|
|
|
namespace dr1601 { // dr1601: 10
|
|
enum E : char { e };
|
|
#if __cplusplus < 201103L
|
|
// expected-error@-2 {{enumeration types with a fixed underlying type are a C++11 extension}}
|
|
#endif
|
|
void f(char);
|
|
void f(int);
|
|
void g() {
|
|
f(e);
|
|
}
|
|
} // namespace dr1601
|
|
|
|
namespace dr1611 { // dr1611: dup 1658
|
|
struct A { A(int); };
|
|
struct B : virtual A { virtual void f() = 0; };
|
|
struct C : B { C() : A(0) {} void f(); };
|
|
C c;
|
|
}
|
|
|
|
namespace dr1684 { // dr1684: 3.6
|
|
#if __cplusplus >= 201103L
|
|
struct NonLiteral { // expected-note {{because}}
|
|
NonLiteral();
|
|
constexpr int f() { return 0; } // expected-warning 0-1{{will not be implicitly 'const'}}
|
|
};
|
|
constexpr int f(NonLiteral &) { return 0; }
|
|
constexpr int f(NonLiteral) { return 0; } // expected-error {{not a literal type}}
|
|
#endif
|
|
}
|
|
|
|
namespace dr1631 { // dr1631: 3.7
|
|
#if __cplusplus >= 201103L
|
|
// Incorrect overload resolution for single-element initializer-list
|
|
|
|
struct A { int a[1]; };
|
|
struct B { B(int); };
|
|
void f(B, int);
|
|
void f(B, int, int = 0);
|
|
void f(int, A);
|
|
|
|
void test() {
|
|
f({0}, {{1}}); // expected-warning {{braces around scalar init}}
|
|
}
|
|
|
|
namespace with_error {
|
|
void f(B, int); // TODO: expected- note {{candidate function}}
|
|
void f(int, A); // expected-note {{candidate function}}
|
|
void f(int, A, int = 0); // expected-note {{candidate function}}
|
|
|
|
void test() {
|
|
f({0}, {{1}}); // expected-error{{call to 'f' is ambiguous}}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
namespace dr1638 { // dr1638: yes
|
|
#if __cplusplus >= 201103L
|
|
template<typename T> struct A {
|
|
enum class E; // expected-note {{previous}}
|
|
enum class F : T; // expected-note 2{{previous}}
|
|
};
|
|
|
|
template<> enum class A<int>::E;
|
|
template<> enum class A<int>::E {};
|
|
template<> enum class A<int>::F : int;
|
|
template<> enum class A<int>::F : int {};
|
|
|
|
template<> enum class A<short>::E : int;
|
|
template<> enum class A<short>::E : int {};
|
|
|
|
template<> enum class A<short>::F; // expected-error {{different underlying type}}
|
|
template<> enum class A<char>::E : char; // expected-error {{different underlying type}}
|
|
template<> enum class A<char>::F : int; // expected-error {{different underlying type}}
|
|
|
|
enum class A<unsigned>::E; // expected-error {{template specialization requires 'template<>'}} expected-error {{nested name specifier}}
|
|
template enum class A<unsigned>::E; // expected-error {{enumerations cannot be explicitly instantiated}}
|
|
enum class A<unsigned>::E *e; // expected-error {{must use 'enum' not 'enum class'}}
|
|
|
|
struct B {
|
|
friend enum class A<unsigned>::E; // expected-error {{must use 'enum' not 'enum class'}}
|
|
};
|
|
#endif
|
|
}
|
|
|
|
namespace dr1645 { // dr1645: 3.9
|
|
#if __cplusplus >= 201103L
|
|
struct A {
|
|
constexpr A(int, float = 0); // expected-note {{candidate}}
|
|
explicit A(int, int = 0); // expected-note 2{{candidate}}
|
|
A(int, int, int = 0) = delete; // expected-note {{candidate}}
|
|
};
|
|
|
|
struct B : A {
|
|
using A::A; // expected-note 4{{inherited here}}
|
|
};
|
|
|
|
constexpr B a(0); // expected-error {{ambiguous}}
|
|
constexpr B b(0, 0); // expected-error {{ambiguous}}
|
|
#endif
|
|
}
|
|
|
|
namespace dr1653 { // dr1653: 4 c++17
|
|
void f(bool b) {
|
|
++b;
|
|
b++;
|
|
#if __cplusplus <= 201402L
|
|
// expected-warning@-3 {{deprecated}} expected-warning@-2 {{deprecated}}
|
|
#else
|
|
// expected-error@-5 {{incrementing expression of type bool}} expected-error@-4 {{incrementing expression of type bool}}
|
|
#endif
|
|
--b; // expected-error {{cannot decrement expression of type bool}}
|
|
b--; // expected-error {{cannot decrement expression of type bool}}
|
|
b += 1; // ok
|
|
b -= 1; // ok
|
|
}
|
|
}
|
|
|
|
namespace dr1658 { // dr1658: 5
|
|
namespace DefCtor {
|
|
class A { A(); }; // expected-note 0-2{{here}}
|
|
class B { ~B(); }; // expected-note 0-2{{here}}
|
|
|
|
// The stars align! An abstract class does not construct its virtual bases.
|
|
struct C : virtual A { C(); virtual void foo() = 0; };
|
|
C::C() = default; // ok, not deleted, expected-error 0-1{{extension}}
|
|
struct D : virtual B { D(); virtual void foo() = 0; };
|
|
D::D() = default; // ok, not deleted, expected-error 0-1{{extension}}
|
|
|
|
// In all other cases, we are not so lucky.
|
|
struct E : A { E(); virtual void foo() = 0; };
|
|
#if __cplusplus < 201103L
|
|
E::E() = default; // expected-error {{private default constructor}} expected-error {{extension}} expected-note {{here}}
|
|
#else
|
|
E::E() = default; // expected-error {{would delete}} expected-note@-4{{inaccessible default constructor}}
|
|
#endif
|
|
struct F : virtual A { F(); };
|
|
#if __cplusplus < 201103L
|
|
F::F() = default; // expected-error {{private default constructor}} expected-error {{extension}} expected-note {{here}}
|
|
#else
|
|
F::F() = default; // expected-error {{would delete}} expected-note@-4{{inaccessible default constructor}}
|
|
#endif
|
|
|
|
struct G : B { G(); virtual void foo() = 0; };
|
|
#if __cplusplus < 201103L
|
|
G::G() = default; // expected-error@-2 {{private destructor}} expected-error {{extension}} expected-note {{here}}
|
|
#else
|
|
G::G() = default; // expected-error {{would delete}} expected-note@-4{{inaccessible destructor}}
|
|
#endif
|
|
struct H : virtual B { H(); };
|
|
#if __cplusplus < 201103L
|
|
H::H() = default; // expected-error@-2 {{private destructor}} expected-error {{extension}} expected-note {{here}}
|
|
#else
|
|
H::H() = default; // expected-error {{would delete}} expected-note@-4{{inaccessible destructor}}
|
|
#endif
|
|
}
|
|
|
|
namespace Dtor {
|
|
class B { ~B(); }; // expected-note 0-2{{here}}
|
|
|
|
struct D : virtual B { ~D(); virtual void foo() = 0; };
|
|
D::~D() = default; // ok, not deleted, expected-error 0-1{{extension}}
|
|
|
|
struct G : B { ~G(); virtual void foo() = 0; };
|
|
#if __cplusplus < 201103L
|
|
G::~G() = default; // expected-error@-2 {{private destructor}} expected-error {{extension}} expected-note {{here}}
|
|
#else
|
|
G::~G() = default; // expected-error {{would delete}} expected-note@-4{{inaccessible destructor}}
|
|
#endif
|
|
struct H : virtual B { ~H(); };
|
|
#if __cplusplus < 201103L
|
|
H::~H() = default; // expected-error@-2 {{private destructor}} expected-error {{extension}} expected-note {{here}}
|
|
#else
|
|
H::~H() = default; // expected-error {{would delete}} expected-note@-4{{inaccessible destructor}}
|
|
#endif
|
|
}
|
|
|
|
namespace MemInit {
|
|
struct A { A(int); }; // expected-note {{here}}
|
|
struct B : virtual A {
|
|
B() {}
|
|
virtual void f() = 0;
|
|
};
|
|
struct C : virtual A {
|
|
C() {} // expected-error {{must explicitly initialize}}
|
|
};
|
|
}
|
|
|
|
namespace CopyCtorParamType {
|
|
struct A { A(A&); };
|
|
struct B : virtual A { virtual void f() = 0; };
|
|
struct C : virtual A { virtual void f(); };
|
|
struct D : A { virtual void f() = 0; };
|
|
|
|
struct X {
|
|
friend B::B(const B&) throw();
|
|
friend C::C(C&);
|
|
friend D::D(D&);
|
|
};
|
|
}
|
|
|
|
namespace CopyCtor {
|
|
class A { A(const A&); A(A&&); }; // expected-note 0-4{{here}} expected-error 0-1{{extension}}
|
|
|
|
struct C : virtual A { C(const C&); C(C&&); virtual void foo() = 0; }; // expected-error 0-1{{extension}}
|
|
C::C(const C&) = default; // expected-error 0-1{{extension}}
|
|
C::C(C&&) = default; // expected-error 0-2{{extension}}
|
|
|
|
struct E : A { E(const E&); E(E&&); virtual void foo() = 0; }; // expected-error 0-1{{extension}}
|
|
#if __cplusplus < 201103L
|
|
E::E(const E&) = default; // expected-error {{private copy constructor}} expected-error {{extension}} expected-note {{here}}
|
|
E::E(E&&) = default; // expected-error {{private move constructor}} expected-error 2{{extension}} expected-note {{here}}
|
|
#else
|
|
E::E(const E&) = default; // expected-error {{would delete}} expected-note@-5{{inaccessible copy constructor}}
|
|
E::E(E&&) = default; // expected-error {{would delete}} expected-note@-6{{inaccessible move constructor}}
|
|
#endif
|
|
struct F : virtual A { F(const F&); F(F&&); }; // expected-error 0-1{{extension}}
|
|
#if __cplusplus < 201103L
|
|
F::F(const F&) = default; // expected-error {{private copy constructor}} expected-error {{extension}} expected-note {{here}}
|
|
F::F(F&&) = default; // expected-error {{private move constructor}} expected-error 2{{extension}} expected-note {{here}}
|
|
#else
|
|
F::F(const F&) = default; // expected-error {{would delete}} expected-note@-5{{inaccessible copy constructor}}
|
|
F::F(F&&) = default; // expected-error {{would delete}} expected-note@-6{{inaccessible move constructor}}
|
|
#endif
|
|
}
|
|
|
|
// 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 dr1687 { // dr1687: 7
|
|
template<typename T> struct To {
|
|
operator T(); // expected-note 2{{first operand was implicitly converted to type 'int *'}}
|
|
// expected-note@-1 {{second operand was implicitly converted to type 'double'}}
|
|
#if __cplusplus > 201703L
|
|
// expected-note@-3 2{{operand was implicitly converted to type 'dr1687::E}}
|
|
#endif
|
|
};
|
|
|
|
int *a = To<int*>() + 100.0; // expected-error {{invalid operands to binary expression ('To<int *>' and 'double')}}
|
|
int *b = To<int*>() + To<double>(); // expected-error {{invalid operands to binary expression ('To<int *>' and 'To<double>')}}
|
|
|
|
#if __cplusplus > 201703L
|
|
enum E1 {};
|
|
enum E2 {};
|
|
auto c = To<E1>() <=> To<E2>(); // expected-error {{invalid operands to binary expression ('To<dr1687::E1>' and 'To<dr1687::E2>')}}
|
|
#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); // expected-note {{declared here}}
|
|
}
|
|
void test() {
|
|
N::M::E e;
|
|
f(e); // ok
|
|
g(e); // expected-error {{use of undeclared}}
|
|
}
|
|
#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{} }; // expected-error {{default member initializer for 'y' needed within definition of enclosing class 'A' outside of member functions}} expected-note {{here}}
|
|
};
|
|
A a{a, a};
|
|
#endif
|
|
}
|
|
|
|
struct A { A(); ~A(); };
|
|
#if __cplusplus >= 201103L
|
|
struct B {
|
|
A &&a; // expected-note {{declared here}}
|
|
B() : a{} {} // expected-error {{reference member 'a' binds to a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
|
} b;
|
|
#endif
|
|
|
|
struct C {
|
|
C();
|
|
const A &a; // expected-note {{declared here}}
|
|
};
|
|
C::C() : a(A()) {} // expected-error {{reference member 'a' binds to a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
|
|
|
|
#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 {
|
|
#if __cplusplus < 201402L
|
|
// expected-error@-2 {{binds to a temporary}}
|
|
#endif
|
|
const A &a = A(); // expected-note {{default member init}}
|
|
};
|
|
D1 d1 = {};
|
|
#if __cplusplus < 201402L
|
|
// expected-note@-2 {{first required here}}
|
|
#else
|
|
// expected-warning-re@-4 {{sorry, lifetime extension {{.*}} not supported}}
|
|
#endif
|
|
|
|
struct D2 {
|
|
const A &a = A(); // expected-note {{default member init}}
|
|
D2() {} // expected-error {{binds to a temporary}}
|
|
};
|
|
|
|
struct D3 { // expected-error {{binds to a temporary}}
|
|
const A &a = A(); // expected-note {{default member init}}
|
|
};
|
|
D3 d3; // expected-note {{first required here}}
|
|
|
|
struct haslist1 {
|
|
std::initializer_list<int> il; // expected-note {{'std::initializer_list' member}}
|
|
haslist1(int i) : il{i, 2, 3} {} // expected-error {{backing array for 'std::initializer_list' member 'il' is a temporary object}}
|
|
};
|
|
|
|
struct haslist2 {
|
|
std::initializer_list<int> il; // expected-note {{'std::initializer_list' member}}
|
|
haslist2();
|
|
};
|
|
haslist2::haslist2() : il{1, 2} {} // expected-error {{backing array for 'std::initializer_list' member 'il' is a temporary object}}
|
|
|
|
struct haslist3 {
|
|
std::initializer_list<int> il = {1, 2, 3};
|
|
};
|
|
|
|
struct haslist4 { // expected-error {{backing array for 'std::initializer_list' member 'il' is a temporary object}}
|
|
std::initializer_list<int> il = {1, 2, 3}; // expected-note {{default member initializer}}
|
|
};
|
|
haslist4 hl4; // expected-note {{in implicit default constructor}}
|
|
|
|
struct haslist5 {
|
|
std::initializer_list<int> il = {1, 2, 3}; // expected-note {{default member initializer}}
|
|
haslist5() {} // expected-error {{backing array for 'std::initializer_list' member 'il' is a temporary object}}
|
|
};
|
|
#endif
|
|
}
|