Question

I’ve an array of fixed size in C. There I might have any number (less than the array size) of useful element. Now I need only my useful element. So I’m thinking of using an end of array marker for integer array. First of all

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a) Is this possible?

b) If possible, How?

Answer 1

I would take a slightly different approach

struct IntArray
{
  int data[N];
  int size; // <-- use this to keep track of the size.
}