Example Question

[Steve8291]

I'm trying to understand the two variables from the example code:

    int minat = 0;
    int maxat = 0;

Any chance someone could explain what they do? Would be great to have this added as a comment to the example as well.
Thanks.

[majenkotech]

They get the location in the dataset of the min and max values.

[Steve8291]

Ok. Then it's not a value that ever needs changed by the user?

[majenkotech]

The variable gets filled in by the function it's passed to. The & passes a reference (pointer) to the function so that the function can modify the contents of the variable. If you don't care about where in the dataset the maximum of minimum value is you can just leave that parameter out, or replace it with NULL.

[Steve8291]

Great. Thanks for explaining all that to me.