Iteration in C

Hi there /prog/.

I know Python, and I'm learning C. Both langs have for loops. Python's nicely iterates over a collection of unknown length. C's usually has you specify the length of the collection at compile time, but what if the length is unknown?

My best newbie guess: you terminate the collection with NULL, or you write an iteration function that returns some end-of-collection value when it's done.

>>29
Why don't you try it, since you're the one who doesn't understand the language.

>>26
it's aligned just as much as if you do int *array = malloc(sizeof(int) * 10)... and it works just fine with more than 256 elements.