// RUN: %clang_cc1 -std=c++98 -triple x86_64-unknown-unknown %s -verify=expected,cxx98-14,cxx98 -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-unknown %s -verify=expected,cxx11-20,cxx98-14,since-cxx11,cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++14 -triple x86_64-unknown-unknown %s -verify=expected,cxx11-20,since-cxx14,cxx98-14,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-unknown %s -verify=expected,cxx11-20,since-cxx14,since-cxx17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-unknown %s -verify=expected,cxx11-20,since-cxx14,since-cxx20,since-cxx17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++23 -triple x86_64-unknown-unknown %s -verify=expected,since-cxx23,since-cxx14,since-cxx20,since-cxx17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++2c -triple x86_64-unknown-unknown %s -verify=expected,since-cxx23,since-cxx14,since-cxx20,since-cxx17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
#if __cplusplus == 199711L
#define static_assert(...) __extension__ _Static_assert(__VA_ARGS__)
// cxx98-error@-1 {{variadic macros are a C99 feature}}
#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 cwg1601 { // cwg1601: 10
enum E : char { e };
// cxx98-error@-1 {{enumeration types with a fixed underlying type are a C++11 extension}}
void f(char);
void f(int);
void g() {
f(e);
}
} // namespace cwg1601
namespace cwg1606 { // cwg1606: 3.1
#if __cplusplus >= 201103L
std::size_t test() {
int i = 1;
int j = 1;
auto f = [=]{ return i + j; };
return sizeof(f);
}
#endif
} // namespace cwg1606
namespace cwg1611 { // cwg1611: 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 cwg1631 { // cwg1631: 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}});
// since-cxx11-warning@-1 {{braces around scalar initializer}}
}
namespace with_error {
void f(B, int); // TODO: expected- note {{candidate function}}
void f(int, A); // #cwg1631-f
void f(int, A, int = 0); // #cwg1631-f-int
void test() {
f({0}, {{1}});
// since-cxx11-error@-1 {{call to 'f' is ambiguous}}
// since-cxx11-note@#cwg1631-f {{candidate function}}
// since-cxx11-note@#cwg1631-f-int {{candidate function}}
}
}
#endif
}
namespace cwg1638 { // cwg1638: 3.1
#if __cplusplus >= 201103L
template<typename T> struct A {
enum class E; // #cwg1638-E
enum class F : T; // #cwg1638-F
};
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;
// since-cxx11-error@-1 {{enumeration redeclared with different underlying type 'int' (was 'short')}}
// since-cxx11-note@#cwg1638-F {{previous declaration is here}}
template<> enum class A<char>::E : char;
// since-cxx11-error@-1 {{enumeration redeclared with different underlying type 'char' (was 'int')}}
// since-cxx11-note@#cwg1638-E {{previous declaration is here}}
template<> enum class A<char>::F : int;
// since-cxx11-error@-1 {{enumeration redeclared with different underlying type 'int' (was 'char')}}
// since-cxx11-note@#cwg1638-F {{previous declaration is here}}
enum class A<unsigned>::E;
// since-cxx11-error@-1 {{template specialization requires 'template<>'}}
template enum class A<unsigned>::E;
// since-cxx11-error@-1 {{enumerations cannot be explicitly instantiated}}
enum class A<unsigned>::E *e;
// since-cxx11-error@-1 {{reference to enumeration must use 'enum' not 'enum class'}}
struct B {
friend enum class A<unsigned>::E;
// since-cxx11-error@-1 {{reference to enumeration must use 'enum' not 'enum class'}}
// since-cxx11-error@-2 {{elaborated enum specifier cannot be declared as a friend}}
// since-cxx11-note@-3 {{remove 'enum class' to befriend an enum}}
};
#endif
}
namespace cwg1645 { // cwg1645: 3.9
#if __cplusplus >= 201103L
struct A {
constexpr A(int, float = 0); // #cwg1645-int-float
explicit A(int, int = 0); // #cwg1645-int-int
A(int, int, int = 0) = delete; // #cwg1645-int-int-int
};
struct B : A {
using A::A; // #cwg1645-using
};
constexpr B a(0);
// since-cxx11-error@-1 {{call to constructor of 'const B' is ambiguous}}
// since-cxx11-note@#cwg1645-int-float {{candidate inherited constructor}}
// since-cxx11-note@#cwg1645-using {{constructor from base class 'A' inherited here}}
// since-cxx11-note@#cwg1645-int-int {{candidate inherited constructor}}
// since-cxx11-note@#cwg1645-using {{constructor from base class 'A' inherited here}}
constexpr B b(0, 0);
// since-cxx11-error@-1 {{call to constructor of 'const B' is ambiguous}}
// since-cxx11-note@#cwg1645-int-int {{candidate inherited constructor}}
// since-cxx11-note@#cwg1645-using {{constructor from base class 'A' inherited here}}
// since-cxx11-note@#cwg1645-int-int-int {{candidate inherited constructor has been explicitly deleted}}
// since-cxx11-note@#cwg1645-using {{constructor from base class 'A' inherited here}}
#endif
}
namespace cwg1652 { // cwg1652: 3.6
int a, b;
static_assert(&a + 1 == &b, "");
// expected-error@-1 {{static assertion expression is not an integral constant expression}}
// expected-note@-2 {{comparison against pointer '&a + 1' that points past the end of a complete object has unspecified value}}
}
namespace cwg1653 { // cwg1653: 4 c++17
void f(bool b) {
++b;
// cxx98-14-warning@-1 {{incrementing expression of type bool is deprecated and incompatible with C++17}}
// since-cxx17-error@-2 {{SO C++17 does not allow incrementing expression of type bool}}
b++;
// cxx98-14-warning@-1 {{incrementing expression of type bool is deprecated and incompatible with C++17}}
// since-cxx17-error@-2 {{SO C++17 does not allow incrementing expression of type bool}}
--b;
// expected-error@-1 {{cannot decrement expression of type bool}}
b--;
// expected-error@-1 {{cannot decrement expression of type bool}}
b += 1; // ok
b -= 1; // ok
}
}
namespace cwg1658 { // cwg1658: 5
namespace DefCtor {
class A { A(); }; // #cwg1658-A1
class B { ~B(); }; // #cwg1658-B1
// 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
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
struct D : virtual B { D(); virtual void foo() = 0; };
D::D() = default; // ok, not deleted
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
// In all other cases, we are not so lucky.
struct E : A { E(); virtual void foo() = 0; }; // #cwg1658-E1
E::E() = default; // #cwg1658-E1-ctor
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
// cxx98-error@-2 {{base class 'A' has private default constructor}}
// cxx98-note@-3 {{in defaulted default constructor for 'cwg1658::DefCtor::E' first required here}}
// cxx98-note@#cwg1658-A1 {{implicitly declared private here}}
// since-cxx11-error@#cwg1658-E1-ctor {{defaulting this default constructor would delete it after its first declaration}}
// since-cxx11-note@#cwg1658-E1 {{default constructor of 'E' is implicitly deleted because base class 'A' has an inaccessible default constructor}}
struct F : virtual A { F(); }; // #cwg1658-F1
F::F() = default; // #cwg1658-F1-ctor
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
// cxx98-error@-2 {{inherited virtual base class 'A' has private default constructor}}
// cxx98-note@-3 {{in defaulted default constructor for 'cwg1658::DefCtor::F' first required here}}
// cxx98-note@#cwg1658-A1 {{implicitly declared private here}}
// since-cxx11-error@#cwg1658-F1-ctor {{defaulting this default constructor would delete it after its first declaration}}
// since-cxx11-note@#cwg1658-F1 {{default constructor of 'F' is implicitly deleted because base class 'A' has an inaccessible default constructor}}
struct G : B { G(); virtual void foo() = 0; }; // #cwg1658-G1
G::G() = default; // #cwg1658-G1-ctor
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
// cxx98-error@#cwg1658-G1 {{base class 'B' has private destructor}}
// cxx98-note@#cwg1658-G1-ctor {{in defaulted default constructor for 'cwg1658::DefCtor::G' first required here}}
// cxx98-note@#cwg1658-B1 {{implicitly declared private here}}
// since-cxx11-error@#cwg1658-G1-ctor {{defaulting this default constructor would delete it after its first declaration}}
// since-cxx11-note@#cwg1658-G1 {{default constructor of 'G' is implicitly deleted because base class 'B' has an inaccessible destructor}}
struct H : virtual B { H(); }; // #cwg1658-H1
H::H() = default; // #cwg1658-H1-ctor
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
// cxx98-error@#cwg1658-H1 {{base class 'B' has private destructor}}
// cxx98-note@#cwg1658-H1-ctor {{in defaulted default constructor for 'cwg1658::DefCtor::H' first required here}}
// cxx98-note@#cwg1658-B1 {{implicitly declared private here}}
// since-cxx11-error@#cwg1658-H1-ctor {{defaulting this default constructor would delete it after its first declaration}}
// since-cxx11-note@#cwg1658-H1 {{default constructor of 'H' is implicitly deleted because base class 'B' has an inaccessible destructor}}
}
namespace Dtor {
class B { ~B(); }; // #cwg1658-B2
struct D : virtual B { ~D(); virtual void foo() = 0; };
D::~D() = default; // ok, not deleted
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
struct G : B { ~G(); virtual void foo() = 0; }; // #cwg1658-G2
G::~G() = default; // #cwg1658-G2-dtor
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
// cxx98-error@#cwg1658-G2 {{base class 'B' has private destructor}}
// cxx98-note@#cwg1658-G2-dtor {{in defaulted destructor for 'cwg1658::Dtor::G' first required here}}
// cxx98-note@#cwg1658-B2 {{implicitly declared private here}}
// since-cxx11-error@#cwg1658-G2-dtor {{defaulting this destructor would delete it after its first declaration}}
// since-cxx11-note@#cwg1658-G2 {{destructor of 'G' is implicitly deleted because base class 'B' has an inaccessible destructor}}
struct H : virtual B { ~H(); }; // #cwg1658-H2
H::~H() = default; // #cwg1658-H2-dtor
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
// cxx98-error@#cwg1658-H2 {{base class 'B' has private destructor}}
// cxx98-note@#cwg1658-H2-dtor {{in defaulted destructor for 'cwg1658::Dtor::H' first required here}}
// cxx98-note@#cwg1658-B2 {{implicitly declared private here}}
// since-cxx11-error@#cwg1658-H2-dtor {{defaulting this destructor would delete it after its first declaration}}
// since-cxx11-note@#cwg1658-H2 {{destructor of 'H' is implicitly deleted because base class 'B' has an inaccessible destructor}}
}
namespace MemInit {
struct A { A(int); }; // #cwg1658-A3
struct B : virtual A {
B() {}
virtual void f() = 0;
};
struct C : virtual A {
C() {}
// expected-error@-1 {{constructor for 'cwg1658::MemInit::C' must explicitly initialize the base class 'A' which does not have a default constructor}}
// expected-note@#cwg1658-A3 {{'cwg1658::MemInit::A' declared here}}
};
}
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; }; // since-cxx23-note {{previous declaration is here}}
struct X {
friend B::B(const B&) throw();
friend C::C(C&);
friend D::D(D&); // since-cxx23-error {{non-constexpr declaration of 'D' follows constexpr declaration}}
};
}
namespace CopyCtor {
class A { A(const A&); A(A&&); }; // #cwg1658-A5
// cxx98-error@-1 {{rvalue references are a C++11 extension}}
struct C : virtual A { C(const C&); C(C&&); virtual void foo() = 0; };
// cxx98-error@-1 {{rvalue references are a C++11 extension}}
C::C(const C&) = default;
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
C::C(C&&) = default;
// cxx98-error@-1 {{rvalue references are a C++11 extension}}
// cxx98-error@-2 {{defaulted function definitions are a C++11 extension}}
struct E : A { E(const E&); E(E&&); virtual void foo() = 0; }; // #cwg1658-E5
// cxx98-error@-1 {{rvalue references are a C++11 extension}}
E::E(const E&) = default; // #cwg1658-E5-copy-ctor
// cxx98-error@-1 {{defaulted function definitions are a C++11 extension}}
// cxx98-error@-2 {{base class 'A' has private copy constructor}}
// cxx98-note@-3 {{in defaulted copy constructor for 'cwg1658::CopyCtor::E' first required here}}
// cxx98-note@#cwg1658-A5 {{implicitly declared private here}}
// since-cxx11-error@#cwg1658-E5-copy-ctor {{defaulting this copy constructor would delete it after its first declaration}}
// since-cxx11-note@#cwg1658-E5 {{copy constructor of 'E' is implicitly deleted because base class 'A' has an inaccessible copy constructor}}
E::E(E&&) = default; // #cwg1658-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 'cwg1658::CopyCtor::E' first required here}}
// cxx98-note@#cwg1658-A5 {{implicitly declared private here}}
// since-cxx11-error@#cwg1658-E5-move-ctor {{defaulting this move constructor would delete it after its first declaration}}
// since-cxx11-note@#cwg1658-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&&); }; // #cwg1658-F5
// cxx98-error@-1 {{rvalue references are a C++11 extension}}
F::F(const F&) = default; // #cwg1658-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 'cwg1658::CopyCtor::F' first required here}}
// cxx98-note@#cwg1658-A5 {{implicitly declared private here}}
// since-cxx11-error@#cwg1658-F5-copy-ctor {{defaulting this copy constructor would delete it after its first declaration}}
// since-cxx11-note@#cwg1658-F5 {{copy constructor of 'F' is implicitly deleted because base class 'A' has an inaccessible copy constructor}}
F::F(F&&) = default; // #cwg1658-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 'cwg1658::CopyCtor::F' first required here}}
// cxx98-note@#cwg1658-A5 {{implicitly declared private here}}
// since-cxx11-error@#cwg1658-F5-move-ctor {{defaulting this move constructor would delete it after its first declaration}}
// since-cxx11-note@#cwg1658-F5 {{move constructor of 'F' is implicitly deleted because base class 'A' has an inaccessible move constructor}}
}
// assignment case is superseded by cwg2180
}
namespace cwg1672 { // cwg1672: 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 cwg1684 { // cwg1684: 3.6
#if __cplusplus >= 201103L
struct NonLiteral { // #cwg1684-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; }
// cxx11-20-error@-1 {{constexpr function's 1st parameter type 'NonLiteral' is not a literal type}}
// cxx11-20-note@#cwg1684-struct {{'NonLiteral' is not literal because it is not an aggregate and has no constexpr constructors other than copy or move constructors}}
#endif
}
namespace cwg1687 { // cwg1687: 7
template<typename T> struct To {
operator T(); // #cwg1687-op-T
};
int *a = To<int*>() + 100.0;
// expected-error@-1 {{invalid operands to binary expression ('To<int *>' and 'double')}}
// expected-note@#cwg1687-op-T {{first operand was implicitly converted to type 'int *'}}
// since-cxx20-note@#cwg1687-op-T {{second operand was implicitly converted to type 'cwg1687::E2'}}
int *b = To<int*>() + To<double>();
// expected-error@-1 {{invalid operands to binary expression ('To<int *>' and 'To<double>')}}
// expected-note@#cwg1687-op-T {{first operand was implicitly converted to type 'int *'}}
// expected-note@#cwg1687-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@#cwg1687-op-T {{operand was implicitly converted to type 'cwg1687::E}}
#endif
}
namespace cwg1690 { // cwg1690: 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 cwg1691 { // cwg1691: 9
#if __cplusplus >= 201103L
namespace N {
namespace M {
enum E : int;
void f(E);
}
enum M::E : int {};
void g(M::E); // #cwg1691-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@#cwg1691-g {{'N::g' declared here}}
}
#endif
}
namespace cwg1692 { // cwg1692: 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 cwg1696 { // cwg1696: 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};
struct A1 {
A1() : v(42) {}
// since-cxx14-error@-1 {{reference member 'v' binds to a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
// since-cxx14-note@#cwg1696-A1 {{reference member declared here}}
const int &v; // #cwg1696-A1
};
struct A2 {
A2() = default;
// since-cxx14-error@-1 {{reference member 'v' binds to a temporary object whose lifetime would be shorter than the lifetime of the constructed object}}
// since-cxx14-note-re@#cwg1696-A2-b {{in defaulted default constructor for {{.*}} first required here}}
// since-cxx14-note@#cwg1696-A2-a {{initializing field 'v' with default member initializer}}
A2(int v) : v(v) {}
// since-cxx14-warning@-1 {{binding reference member 'v' to stack allocated parameter 'v'}}
// since-cxx14-note@#cwg1696-A2-a {{reference member declared here}}
const int &v = 42; // #cwg1696-A2-a
};
A2 a1; // #cwg1696-A2-b
A2 a2(1); // OK, unfortunately
#endif
}
struct A { A(); ~A(); };
#if __cplusplus >= 201103L
struct B {
A &&a; // #cwg1696-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@#cwg1696-a {{reference member declared here}}
} b;
#endif
struct C {
C();
const A &a; // #cwg1696-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@#cwg1696-C-a {{reference member declared here}}
#if __cplusplus >= 201103L
// This is OK in C++14 onwards, per CWG1815, 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@#cwg1696-d1 {{in implicit default constructor for 'cwg1696::D1' first required here}}
// cxx11-note@#cwg1696-D1-a {{initializing field 'a' with default member initializer}}
const A &a = A(); // #cwg1696-D1-a
};
D1 d1 = {}; // #cwg1696-d1
struct D2 {
const A &a = A(); // #cwg1696-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@#cwg1696-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@#cwg1696-d3 {{in implicit default constructor for 'cwg1696::D3' first required here}}
// since-cxx11-note@#cwg1696-D3-a {{initializing field 'a' with default member initializer}}
const A &a = A(); // #cwg1696-D3-a
};
D3 d3; // #cwg1696-d3
struct haslist1 {
std::initializer_list<int> il; // #cwg1696-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@#cwg1696-il-1 {{'std::initializer_list' member declared here}}
};
struct haslist2 {
std::initializer_list<int> il; // #cwg1696-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@#cwg1696-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@#cwg1696-hl4 {{in implicit default constructor for 'cwg1696::haslist4' first required here}}
// since-cxx11-note@#cwg1696-il-4 {{initializing field 'il' with default member initializer}}
std::initializer_list<int> il = {1, 2, 3}; // #cwg1696-il-4
};
haslist4 hl4; // #cwg1696-hl4
struct haslist5 {
std::initializer_list<int> il = {1, 2, 3}; // #cwg1696-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@#cwg1696-il-5 {{nitializing field 'il' with default member initializer}}
};
#endif
}
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