Is it possible to define {$IFDEF} for more than one directive at once?

Question

Is it possible to define more than one conditional in one {$IFDEF} directive ?
I would like to have syntax like this:

{$IFDEF Condition1 OR Condition2} DoSomething; {$ENDIF} {$IFDEF Condition1 AND Condition2} DoSomethingElse; {$ENDIF} 

Thanks

Answer 1

You would need to use $IF instead:

{$IF Defined(Condition1) or Defined(Condition2)} DoSomething; {$IFEND} 

Answer 2

In case you have to support old Delphis (without the support for the $IF metadirective), you can use one simple and one ugly workaround:

//AND {$IFDEF Cond1}{$IFDEF Cond2}DoSomething{$ENDIF}{$ENDIF}   //OR {$UNDEF Cond1OrCond2} {$IFDEF Cond1}{$DEFINE Cond1OrCond2}{$ENDIF} {$IFDEF Cond2}{$DEFINE Cond1OrCond2}{$ENDIF} {$IFDEF Cond1OrCond2}DoSomething{$ENDIF} 

If you are repeating the test more than once, first case should be rewritten as follows.

{$UNDEF Cond1AndCond2} {$IFDEF Cond1}{$IFDEF Cond2}{$DEFINE Cond1AndCond2{$ENDIF}{$ENDIF}   {$IFDEF Cond1AndCond2}DoSomething{$ENDIF}