Question

The foo function below finds the first occurrence of the given number and returns it’s index. If the number wasn’t found it returns the size of the array(n):

‪int foo(int arr[10], int num, int n)‬
{
‫;‪   int *p‬‬
‪   for (p=arr;(*p!=num) && (p<arr+n);++p);‬‬
   ‫;‪return p-arr‬‬
}

My question is: is the parameter int arr[10] the same as writing int * arr or int arr[] for that matter? because when i pass an int array of size 100 i can iterate through it and i’m not capped to only 10 elements.

Answer 1

My question is: is the parameter int arr[10] the same as writing int *arr or int arr[] for that matter?

Yes, as long as it’s part of the declaration of a function argument list and the array is one-dimensional.