Question

How to get size of a dynamic allocated array of ints in C++?

Example:(/this will always give 4 as 4 * 8 = 32bits it’s size of int)

bool tabSum(int* t, int& p, int& np){
   cout<<"\n\n";
   cout<<sizeof(*t)<<endl;
}

Answer 1

You can’t, arrays decay to pointers when passed as parameters. And sizeof is a compile-time operator.

I suggest you use std::vector instead.