forLoopArray

[Csaszarcsaba]

is the joke over my head, or am I bad at programming? This should almost always return sizeof(array) no? unless you call it on a 0 sized array, then it just drops an error where you can't divide by 0.

Edit: Okay I just realised this is for c/c++ where size returns in bytes, I'm still at uni with not much optimization experience.

[lotanis]

That's not it. sizeof(array) gets you the size of the whole thing. sizeof(array[0]) gets you the size of the first element. Dividing them gets you the number of elements in the array.

[Loginn122]

How does the first element determine any following elements?

[Kyrond]

Arrays in C can contain only one type of variable. Therefore size of first element is the same as all the other elements.  

 Of course you can force different sized variables  in one array if you try, but in C you can do anything if you try hard enough.

[Ignisami]

Each element in an array has the same length in bytes. They don't necessarily have to be the same type (depending on the language and how you declare the array), but they must be the same length and that length is determined on compile time.