Fundamental data type and size in C++

#include<iostream>
using namespace std ;
int main ( )

{

char c;

float f;
int i;
short s;
double d;
long double ld ;
int array [20];
int *ptr=array;
cout<<"sizeof c ="<<sizeof c;
cout<<"sizeof(char)"<<sizeof(char);
cout<<"sizeof f="<<sizeof f;
cout<<"sizeof(float)"<<sizeof(float);
cout<<"sizeof i="<<sizeof i;
cout<<"sizeof(int)"<<sizeof(int);
cout<<"sizeof d="<<sizeof d<<end;
cout<<"sizeof(double)"<<sizeof(double);
cout<<"sizeof ld="<<sizeof ld;
cout<<"sizeof (long double)"<<sizeof(long double);
cout<<"sizeof array ="<<sizeof array ;
cout<<"sizeof ptr ="<<sizeof ptr<<endl;
//end main

}