Help with Array

[youngnito]

Super quick question about arrays and I am sure it has a very easy answer lol.

Can I add to an array that is defined by an int. I will give an example:

for (ix = 0; ix < count; ++ix)
{
        numDifference = abs(highTemp[ix] - highTemp[ix + 1]);

	if (numDifference > maxValue)
	{
		largestDiff = numDifference;

		dayOne = day[ix];

		dayTwo = day[ix + 1];
	}
}

the [ix + 1] is that valid?

thanks in advance

[TheIdeasMan]

It is valid, but it won't do what you think because of the next iteration of the for loop. This has the effect of overwriting your info.

Maybe you need 2 arrays - which is probably the more sensible thing to do.

[youngnito]

okay so let me make sure I understand what you are saying to do.

I want to make sure that the second array call ( highTemp[ix + 1] ) doesn't overwrite my first array.. so I should make a copy of my highTemp to another temporary array then replace the highTemp[ix + 1] with my temporary array?

[keskiverto]

ix+1 is valid only if the arrays have such element. If an array has size count (or less), then on last iteration ix=count-1 and therefore ix+1 is not valid.

[youngnito]

that makes a ton of sense thanks for clearing that up.. how would I be able to do something like that without getting the final error of ix+1 not being valid?

[keskiverto]

Iterate one element less.

Btw.maxValue and largestDiff .. intentional?

[youngnito]

nope that is an error haha thank you for pointing that out