How many bytes is unsigned long long?

Question

How many bytes is unsigned long long? Is it the same as unsigned long long int ?

Answer 1

Use the operator sizeof, it will give you the size of a type expressed in byte. One byte is eight bits. See the following program:

#include 

int main(int,char**)
{
 std::cout << "unsigned long long " << sizeof(unsigned long long) << "\n";
 std::cout << "unsigned long long int " << sizeof(unsigned long long int) << "\n";
 return 0;
}