C++ Program to display the size of different Datatypes [DEVCPP/GCC]

SIZEOF OPERATOR

This compile time operator is used to determine the size of variable/data type in bytes.
Sizeof operator can also be used to determine size of user defined variables i.e. class, structures etc.
Nesting of sizeof operator is possible .

PROGRAM

//Program to display the size of different Datatypes

#include <iostream>

using namespace std;

int main()
{

cout<<"\n SIZE OF DIFFERENT DATATYPES \n";

cout<<"\n CHAR DATATYPE: "<< sizeof(char);
cout<<"\n BOOL DATATYPE: "<< sizeof(bool);
cout<<"\n WIDE CHARACTER: "<< sizeof(wchar_t);

cout<<"\n SHORT DATATYPE: "<< sizeof(short);
cout<<"\n INT DATATYPE: "<< sizeof(int);
cout<<"\n LONG DATATYPE: "<< sizeof(long);

cout<<"\n FLOAT DATATYPE: "<< sizeof(float);
cout<<"\n DOUBLE DATATYPE: "<< sizeof(double);
cout<<"\n LONG DOUBLE DATATYPE: "<< sizeof(long double);

return 0;
}

OUTPUT