#include <stdio.h>

/* Show how much memory is used by primitive types.
 *
 * N.B.: sizeof() is an operator, not a function!
 *
 * N.B.: the standard requires that 
 *       sizeof(short X) <= sizeof(X) <= sizeof(long X),
 *       e.g. "int" and "long int" may have the same
 *       memory requirements.
 */
  
int main()
{
	printf("Size of (in bytes):\n");
	printf("int: %d\n", sizeof(int));
	printf("short int: %d\n", sizeof(short int));
	printf("long int: %d\n", sizeof(long int));
	printf("char: %d\n", sizeof(char));
	printf("float: %d\n", sizeof(float));
	printf("double: %d\n", sizeof(double));
	printf("long double: %d\n", sizeof(long double));
	return 0;
}