================
@@ -4338,6 +4338,21 @@ bool Sema::CheckUnaryExprOrTypeTraitOperand(Expr *E,
E->getSourceRange(), ExprKind))
return true;
+ if (ExprKind == UETT_CountOf) {
+ // The type has to be an array type. We already checked for incomplete
+ // types above.
+ QualType ExprType = E->IgnoreParens()->getType();
+ if (!ExprType->isArrayType()) {
+ Diag(E->getExprLoc(), diag::err_countof_arg_not_array_type) << ExprType;
+ return true;
----------------
cor3ntin wrote:
Can you add tests for arrays of unspecified length, though?
https://github.com/llvm/llvm-project/pull/133125
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