818de32f31
This adds a warning when applying the `pure` attribute along with the `const` attribute, or when applying the `pure` attribute to a function with a `void` return type (including constructors and destructors). Fixes https://github.com/llvm/llvm-project/issues/77482
15 lines
781 B
C++
15 lines
781 B
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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[[gnu::pure]] void foo(); // expected-warning{{'pure' attribute on function returning 'void'; attribute ignored}}
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[[gnu::const]] void bar(); // expected-warning{{'const' attribute on function returning 'void'; attribute ignored}}
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struct A {
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[[gnu::pure]] A(); // expected-warning{{'pure' attribute on function returning 'void'; attribute ignored}}
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[[gnu::const]] A(int); // expected-warning{{'const' attribute on function returning 'void'; attribute ignored}}
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[[gnu::pure]] ~A(); // expected-warning{{'pure' attribute on function returning 'void'; attribute ignored}}
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[[gnu::const]] [[gnu::pure]] int m(); // expected-warning{{'const' attribute imposes more restrictions; 'pure' attribute ignored}}
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};
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