how to display data type size using c++

A program to display the data type size.
//By using predefined sizeof() function,
//,, 1 byte = 8 bits
#include <iostream.h>
#include <stdlib.h>
int main()
{
cout<<"The size of an int is:\t\t"<<sizeof(int)<<" bytes.\n";
cout<<"The size of a short int is:\t"<<sizeof(short)<<" bytes.\n";
cout<<"The size of a long int is:\t"<<sizeof(long)<<" bytes.\n";
cout<<"The size of a char is:\t\t"<<sizeof(char)<<" bytes.\n";
cout<<"The size of a float is:\t\t"<<sizeof(float)<<" bytes.\n";
cout<<"The size of a double is:\t"<<sizeof(double)<<" bytes.\n";
cout<<"The size of a bool is:\t\t"<<sizeof(bool)<<" bytes.\n";
system("pause");
return 0;
}
End

sizeof cplusplus