Default params in procedure declarations

If I create a procedure or function, I can declare parameters to pass in. However, I dont seem to be able to give parameters a default setting.

This would usually be used to negate the requirement of passing the variable.

For example, I create a procedure to control a bathroom fan. The procedure will accept the following:

Group integer - group for the fan to control
func integer - Indicator if its an on(1) or off(0) control
tdelay integer - delay to apply to control

If I can apply a standard delay value, I wouldnt need to pass in the parameter. as follows:

Full command:
SetFan(1, 1, 2); {SetFan procedure call for groupid 1, function on, time 2 mins}

Partial command:
SetFan(1,1); {{SetFan procedure call for groupid 1, function on}

In the partial, the default setting of 2 mins is used.

In a language like Delphi, the declaration would be something along the lines of:

procedure SetFan(gId, pFunc: integer; fDelay: integer = 2);

Would have to seperate out the fDelay to apply a default from the other int declarations.

Now I think this is a specific OOP structure so I am fairly certain a PAC wont handle it, just wondering if anyone else knows for sure?

Im not even going to bother asking if we can have method overloading

Cheers

Simon

 

You definitely can't do it.

Good

 

Hehehehe, fair enough, I thought that may be the answer.

Cheers

Simon