forked from OSchip/llvm-project
42 lines
2.4 KiB
C++
42 lines
2.4 KiB
C++
// RUN: %clang_cc1 -std=c++14 -fconcepts-ts -fcxx-exceptions -x c++ -verify %s
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namespace A {
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template<typename T> concept bool C1() { return true; }
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template<typename T> concept bool C2 = true;
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}
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template<typename T> concept bool C3() { return (throw 0, true); }
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static_assert(noexcept(C3<int>()), "function concept should be treated as if noexcept(true) specified");
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template<typename T> concept bool D1(); // expected-error {{function concept declaration must be a definition}}
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struct B {
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template<typename T> concept bool D2() { return true; } // expected-error {{concept declarations may only appear in namespace scope}}
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};
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struct C {
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template<typename T> static concept bool D3 = true; // expected-error {{concept declarations may only appear in namespace scope}}
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};
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concept bool D4() { return true; } // expected-error {{'concept' can only appear on the definition of a function template or variable template}}
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concept bool D5 = true; // expected-error {{'concept' can only appear on the definition of a function template or variable template}}
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template<typename T>
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concept bool D6; // expected-error {{variable concept declaration must be initialized}}
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template<typename T>
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concept bool D7() throw(int) { return true; } // expected-error {{function concept cannot have exception specification}}
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// Tag
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concept class CC1 {}; // expected-error {{'concept' can only appear on the definition of a function template or variable template}}
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concept struct CS1 {}; // expected-error {{'concept' can only appear on the definition of a function template or variable template}}
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concept union CU1 {}; // expected-error {{'concept' can only appear on the definition of a function template or variable template}}
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concept enum CE1 {}; // expected-error {{'concept' can only appear on the definition of a function template or variable template}}
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template <typename T> concept class TCC1 {}; // expected-error {{'concept' can only appear on the definition of a function template or variable template}}
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template <typename T> concept struct TCS1 {}; // expected-error {{'concept' can only appear on the definition of a function template or variable template}}
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template <typename T> concept union TCU1 {}; // expected-error {{'concept' can only appear on the definition of a function template or variable template}}
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concept bool; // expected-error {{'concept' can only appear on the definition of a function template or variable template}}
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