https://issues.dlang.org/show_bug.cgi?id=19618
--- Comment #2 from Dlang Bot <dlang-bot@dlang.rocks> --- dlang/dmd pull request #9435 "[dmd-cxx] fix Issue 19618 - Associative arrays are not covariant with typeof(null)" was merged into dmd-cxx: - c9d1c94080a5fc233ce4bdf9ebd3f07ba224e9dd by Iain Buclaw: fix Issue 19618 - Associative arrays are not covariant with typeof(null) As associative arrays are value types (`struct {void*}`), which are passed and returned differently to the void pointer typeof(null). https://github.com/dlang/dmd/pull/9435 --