a68d20e986
This patch allows attributes to be attached to C++20 concepts, implementing [CWG2428](https://cplusplus.github.io/CWG/issues/2428.html).
40 lines
984 B
C++
40 lines
984 B
C++
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++20 %s
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namespace [[deprecated]] {} // expected-warning {{'deprecated' attribute on anonymous namespace ignored}}
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namespace [[deprecated]] N { // expected-note 4{{'N' has been explicitly marked deprecated here}}
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int X;
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int Y = X; // Ok
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int f();
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}
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int N::f() { // Ok
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return Y; // Ok
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}
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void f() {
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int Y = N::f(); // expected-warning {{'N' is deprecated}}
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using N::X; // expected-warning {{'N' is deprecated}}
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int Z = X; //Ok
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}
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void g() {
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using namespace N; // expected-warning {{'N' is deprecated}}
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int Z = Y; // Ok
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}
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namespace M = N; // expected-warning {{'N' is deprecated}}
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// Shouldn't diag:
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[[nodiscard, deprecated("")]] int PR37935();
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namespace cxx20_concept {
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template <typename>
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concept C __attribute__((deprecated)) = true; // #C
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template <C T>
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// expected-warning@-1 {{'C' is deprecated}}
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// expected-note@#C {{'C' has been explicitly marked deprecated here}}
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void f();
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} // namespace cxx20_concept
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