http://d.puremagic.com/issues/show_bug.cgi?id=2785
Summary: Interfaces should be able to require non-member functions Product: D Version: unspecified Platform: PC OS/Version: Linux Status: NEW Severity: enhancement Priority: P2 Component: DMD AssignedTo: bugzi...@digitalmars.com ReportedBy: and...@metalanguage.com This should work: interface Foo { extern void bar(int, Foo, double); } meaning that a non-member function bar should exist that accepts an int, the implementor of Foo, and a double. --