On Sun, 5 Jan 2014, Mark Morgan Lloyd wrote:

Simulating a C-style conditional, I can do this

function tf(const q: qword; const qt, qf: TObject): TObject; inline;

begin
 Assert(TypeOf(qt) = TypeOf(result));

This is always true. Everything descends from TOBject.

But assuming the result is not TObject, it would be

Assert((qt=Nil) or (qt.Inheritsfrom(TheResultClass))

Although that is still radically different from what the C style macro does.

Michael.
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