https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104000
Bug ID: 104000 Summary: Ordinary constructor cannot delegate to `consteval` constructor Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: fchelnokov at gmail dot com Target Milestone: --- This program ``` struct A { int i = 0; consteval A() = default; A(int) : A() {} }; ``` is accepted by Clang so I assume it is valid. But GCC complains: error: 'this' is not a constant expression Demo: https://gcc.godbolt.org/z/3T9Pxdoz1