SCL get biggest value from array

[vib]

Hello I wanna know if are some function to check what is the max value from an array
or if I have to loop the array to compare all numbers to get the biggest one

Thanks

 

[CommissioningMan]

Any function will internally compare the numbers, so you might as well just do the compare yourself.

Start by initialising your max_value variable to the minimum value for your datatype e.g. INT16 = -32768

max_value := -32768;
FOR i := [I]LowerBound [/I]TO [I]UpperBound [/I]BY 1 DO
  IF arr[i] > max_value THEN
     max_value := arr[i];
  END_IF;
END_FOR;

 

[JesperMP]

Start by initialising your max_value variable to the minimum value for your datatype e.g. INT16 = -32768

Just copy the 1st element for the initial max value

max_value := arr[[I]LowerBound[/I]]
FOR i := [I]LowerBound+1[/I] TO [I]UpperBound [/I]BY 1 DO
  IF arr[i] > max_value THEN
     max_value := arr[i];
  END_IF;
END_FOR;

 

[vib]

Thanks,
then you always have to do the loop

It is the same to SUM two different arrays with the same length?

If I have
A : ARRAY [1..100, 1..100] OF INT ;
B : ARRAY [1..100, 1..100] OF INT ;
Can I do:

A + B ? or I have to loop every position?

 

[drbitboy]

or I have to loop every position?

You have to (double) loop.

Hoping for SCL/ST syntax to be array-aware is a bit much, don't you think? This isn't Python [summax = max(A+B) # with the numpy module] or a real, extendable language, although you should be able to at least abstract it away to a function.