c++ length of int code example

Example 1: length of int c++

sizeof(num);

Example 2: array length c++

// array::size
#include 
#include 

int main ()
{
  std::array myints;
  std::cout << "size of myints: " << myints.size() << std::endl;
  std::cout << "sizeof(myints): " << sizeof(myints) << std::endl;

  return 0;
}

Example 3: c++ length of int

unsigned int number_of_digits = 0;

do {
     ++number_of_digits; 
     n /= base;
} while (n);