Why isn't the size of an array parameter the same as within main?

Question

Why isn\'t the size of an array sent as a parameter the same as within main?

#include 

void PrintSize(int p_someArray[10]);

int main () {
           


        

Answer 1

Arrays are only loosely sized. For the most part, an array is a pointer to memory. The size in your declaration only tells the compiler how much memory to allocate for the array - it's not associated with the type, so sizeof() has nothing to go on.