If you need the memory size of an element, you use the sizeof() macro in C. For instance, sizeof(var) will return 8. But I can not see for what purpose you need that here?
And no, an array needs not be "global" for being changed by a function. There are other reasons why often global arrays are used.
- From your remarks I have the impression that your first programming experiment is too ambitious. Arrays, linked lists, element sizes, etc. is not what someone ususally has to deal with in his first C programs. But if you want to do that, definitely read a C introductory course. C is one of the best languages for handling arrays or linked lists, but the basic concepts must be understood. Otherwise you will just stumble from one silly "lite-C cannot do" misconception to the next.
I looked through the begin of your text - if I understood it right, you just want to store a stochastic and a time together. This is quite easy, but certainly not with a multidimensional array. In C you use a struct for that, like this:
typedef struct Radar
{
struct Radar *next; // for a linked list
int Time;
var Stochastic;
} Radar;
and you can then easily sort those structs in arrays or linked lists.
If you run into a coding problem, just post your code here and you'll get help.
