...s", n, m, c.x, d.x);
}

// outputs 2 2 1 2

In both cases...

...dsss build testit
 > testit

Builds fine, but outputs "b.a" instead of "a".  This is...

...the D version is slightly faster.  The outputs are identical.

C++ and D program is...

...close to this new speed level.

The outputs of both programs are identical save for...

...C2 : C1 {}

pragma (msg, TransitiveBaseTypeTuple!(C2).stringof);
// outputs (C1, Object) -- should output (C1, Object, I1...

...int] array;
const(int[int]) a = array;

outputs:
cannot implicitly convert expression (array) of type...

...int] array;
const(int[int]) a = array;

outputs:
cannot implicitly convert expression (array) of type...

...b);
    a = null;
    writefln(a, " ", b);
}

It outputs:

[10:20,30:40] [10:20,30...

...just as important.

FWIW The compiler already outputs some RTTI info, such as the list...

...with -O (DMD 1.025, Windows), it outputs something like this:

1, -48
-1, -48...