1cbc10d894
Here we ICE in finish_nonmember_using_decl -> lookup_using_decl -> ... -> find_namespace_slot because "name" is not an IDENTIFIER_NODE. It is a BIT_NOT_EXPR because this broken test uses using E::~E; // SCOPE::NAME A using-decl can't refer to a destructor, and lookup_using_decl already checks that in the class member case. But in C++17, we do the "enum scope is the enclosing scope" block, and so scope gets set to ::, and we go into the NAMESPACE_DECL block. In C++20 we don't do it, we go to the ENUMERAL_TYPE block. I resorted to hoisting the check along with a diagnostic tweak: we don't want to print "::::~E names destructor". gcc/cp/ChangeLog: PR c++/96462 * name-lookup.c (lookup_using_decl): Hoist the destructor check. gcc/testsuite/ChangeLog: PR c++/96462 * g++.dg/cpp2a/using-enum-8.C: New test. |
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