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<span>Hi all,<br>
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<div>The following code snippet will compile with GCC, but not with LLVM:<br>
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<div>constexpr unsigned g(const float *) { return 3; }<br>
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<div>unsigned f() {<br>
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<div> const float x[] = {1.0};<br>
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<div> enum { SIZE = g(x) };<br>
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<div> return SIZE;<br>
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<div>}<br>
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<div>At first glance, this looks fine to me, as the expression in the assignment is a constexpr function call with a const parameter.<br>
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<div>Clang however errors with "reference to local variable 'x' declared in enclosing function".<br>
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<div>I traced this down to the function getParentOfCapturingContextOrNull in SemaExpr.cpp, which will diagnose the variable reference uncapturable if it does not appear in a block literal, captured statement, or lambda expression.</div>
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<div>My question is: Why does this list not contain enum declarations, at least if the declaration is local and the variable is in the same scope?</div>
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<div>I tried to find a mention of this in the C++ standard, but did not succeed so far.<br>
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<div>If this is a bug I'm happy to file it on bugzilla, but I first wanted to ask what the opinions are on whether this code should be valid or not.<br>
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<div>Kind regards,<br>
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<span>Anna</span><br>
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