How to skip some input parameters' set in MT4 StrategyTester optimization mode, if constraints were not met?

Question

I've 3 different input parameters : P1 [1..10], P2 [1..10] and P3 [3..10]. The constraints are the following : P1 < P2 < P3.

Some potential solutions should be discarded right away when the constraints are not respected. For instance when P1 = 2, P2 = 1 and P3 = 4.

Is there a way to accomplish such thing with MetaTrader optimization ?
( eventually using an OnTesterPass() function ? )

I'm losing a lot of time during my optimization because of that and I'd like to find a way to discard or skip directly the potential solution when the constraints are not respected.

Thanks for your help

Answer 1

int OnInit(){
   if(P1<P2 && P2<P3){} // OK
   else{
      printf("%i %s - parameters SKIPPED, !(P1<P2<P3)",__LINE__,__FUNCTION__);
      return(INIT_FAILED);
   }
}

That is all.

The printf() is not called during optimization.

Either INIT_FAILED or INIT_PARAMTERS_INCORRECT stop the optimization of a particular set and the [ MT4 Strategy Tester ] goes right to the next set of parameters.

You do not need OnTesterPass() because it is called after test is done, OnInit() is automatically called Event-handler right upon entering a new set of optimisation parameters into such a test run.