llvm-project/clang/test/CXX/drs/dr17xx.cpp

79 lines
1.7 KiB
C++

// RUN: %clang_cc1 -std=c++98 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++11 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++14 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++1z %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
#if __cplusplus < 201103L
// expected-no-diagnostics
#endif
namespace dr1715 { // dr1715: 3.9
#if __cplusplus >= 201103L
struct B {
template<class T> B(T, typename T::Q);
};
class S {
using Q = int;
template<class T> friend B::B(T, typename T::Q);
};
struct D : B {
using B::B;
};
struct E : B { // expected-note 2{{candidate}}
template<class T> E(T t, typename T::Q q) : B(t, q) {} // expected-note {{'Q' is a private member}}
};
B b(S(), 1);
D d(S(), 2);
E e(S(), 3); // expected-error {{no match}}
#endif
}
namespace dr1736 { // dr1736: 3.9
#if __cplusplus >= 201103L
struct S {
template <class T> S(T t) {
struct L : S {
using S::S;
};
typename T::type value; // expected-error {{no member}}
L l(value); // expected-note {{instantiation of}}
}
};
struct Q { typedef int type; } q;
S s(q); // expected-note {{instantiation of}}
#endif
}
namespace dr1756 { // dr1756: 3.7
#if __cplusplus >= 201103L
// Direct-list-initialization of a non-class object
int a{0};
struct X { operator int(); } x;
int b{x};
#endif
}
namespace dr1758 { // dr1758: 3.7
#if __cplusplus >= 201103L
// Explicit conversion in copy/move list initialization
struct X { X(); };
struct Y { explicit operator X(); } y;
X x{y};
struct A {
A() {}
A(const A &) {}
};
struct B {
operator A() { return A(); }
} b;
A a{b};
#endif
}