https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68114
Bug ID: 68114 Summary: gcc doesn't show error when return type of deleted function is incomplete Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: vanyacpp at gmail dot com Target Milestone: --- struct z; z f() = delete; // should be an error here As I understand, f is a function definition and return type of function definition must be complete.