20 lines
942 B
C++
20 lines
942 B
C++
// RUN: %clang_cc1 -verify -std=c++20 -fsyntax-only %s
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struct S {
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int e;
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};
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template<class T>
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consteval int get_format() {
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return nullptr; // expected-error{{cannot initialize return object of type 'int' with an rvalue of type 'std::nullptr_t'}}
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}
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template<class T>
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constexpr S f(T) noexcept {
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return get_format<T>(); // expected-error{{no viable conversion from returned value of type 'int' to function return type 'S'}}
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}
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constexpr S x = f(0); // expected-error{{constexpr variable 'x' must be initialized by a constant expression}}
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// expected-note@-1{{in instantiation of function template specialization 'f<int>' requested here}}
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// expected-note@3{{candidate constructor (the implicit move constructor) not viable: no known conversion from 'int' to 'S &&' for 1st argument}}
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// expected-note@3{{candidate constructor (the implicit copy constructor) not viable: no known conversion from 'int' to 'const S &' for 1st argument}}
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