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-Wreturn-type false-negative for fully-covered switch over enum that does not cover all possible underlying types #59085

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LebedevRI opened this issue Nov 19, 2022 · 0 comments
Open

-Wreturn-type false-negative for fully-covered switch over enum that does not cover all possible underlying types #59085

LebedevRI opened this issue Nov 19, 2022 · 0 comments
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clang:diagnostics New/improved warning or error message in Clang, but not in clang-tidy or static analyzer confirmed Verified by a second party

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@LebedevRI
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LebedevRI commented Nov 19, 2022 •
edited by VoltrexKeyva
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As per @apinski-cavium @ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107763,
clang's -Wreturn-type should fire on the following:

enum a { b };

int foo(a a) {
    switch(a) {
        case b: return 42;
    }
}

https://godbolt.org/z/j8ezrr5h3
@LebedevRI LebedevRI added the clang:diagnostics New/improved warning or error message in Clang, but not in clang-tidy or static analyzer label Nov 19, 2022
@AaronBallman AaronBallman added the confirmed Verified by a second party label Dec 1, 2022
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