1da3119025
Looks like we again are going to have problems with libcxx tests that are overly specific in their dependency on clang's diagnostics. This reverts commit 6542cb55a3eb115b1c3592514590a19987ffc498.
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
// RUN: %clang_cc1 -std=c++20 -verify %s
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// RUN: %clang_cc1 -std=c++2b -verify %s
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namespace PR52905 {
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template <class> concept C = true;
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struct A {
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int begin();
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int begin() const;
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};
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template <class T>
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concept Beginable = requires (T t) {
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{ t.begin } -> C;
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// expected-note@-1 {{because 't.begin' would be invalid: reference to non-static member function must be called}}
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};
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static_assert(Beginable<A>); // expected-error {{static_assert failed}}
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// expected-note@-1 {{does not satisfy 'Beginable'}}
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} // namespace PR52905
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namespace PR52909a {
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template<class> constexpr bool B = true;
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template<class T> concept True = B<T>;
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template <class T>
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int foo(T t) requires requires { // expected-note {{candidate template ignored: constraints not satisfied}}
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{t.begin} -> True; // expected-note {{because 't.begin' would be invalid: reference to non-static member function must be called}}
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}
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{}
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struct A { int begin(); };
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auto x = foo(A()); // expected-error {{no matching function for call to 'foo'}}
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} // namespace PR52909a
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namespace PR52909b {
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template<class> concept True = true;
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template<class T> concept C = requires {
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{ T::begin } -> True; // expected-note {{because 'T::begin' would be invalid: reference to overloaded function could not be resolved}}
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};
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struct A {
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static void begin(int);
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static void begin(double);
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};
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static_assert(C<A>); // expected-error {{static_assert failed}}
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// expected-note@-1 {{because 'PR52909b::A' does not satisfy 'C'}}
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} // namespace PR52909b
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namespace PR53075 {
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template<class> concept True = true;
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template<class T> concept C = requires {
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{ &T::f } -> True; // expected-note {{because '&T::f' would be invalid: reference to overloaded function could not be resolved}}
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};
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struct S {
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int *f();
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int *f() const;
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};
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static_assert(C<S>); // expected-error {{static_assert failed}}
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// expected-note@-1 {{because 'PR53075::S' does not satisfy 'C'}}
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} // namespace PR53075
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