Length of Array in C

Hey guys, I really need ur help on this one!

How do I find out the length of an array using C?

for instance...

I have an array that has 10 values in it, how do I get this number programatically...

thanx in advance,
Squirrelly1;)

You can't, really.

Unless you specifically have a 10 item array:

Code:

---

void somecode() {
    int blah[10];
}

---

...in which case you can use (sizeof(blah) / sizeof(int)) to get the number of items. If you've used malloc to obtain a pointer to a memory location, then there's no way, and you need to keep track of the size yourself.

And if you have int blah[10] then there's no reason to compute the size. Note also that this only works in the function you declared the array.