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digitalmars.D.bugs - [Issue 7315] New: 'out' parameters should be covariant


           Summary: 'out' parameters should be covariant
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: timon.gehr gmx.ch

The following code should compile:
class A{
    void foo(out A a){
        a=new A;
class B:A{
    override void foo(out B b){
        b=new B;

void main(){
    A a;
    B b = new B;

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Jan 18 2012