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.

>>60
Oh, sorry, I misread >>58. (>>59 was my first post in this thread, by the way.) You are indeed correct. But why do that anyway? This isn't Pascal.

But still, try this.
char *array = malloc (size + 4)
array += 4
#define LEN(a) (*(int*)(a)-4)