C++ Program to Find of Variables in Your System
In this example, we will Find Size of int, float, double and char in Your System using C++ cout statement.
Program to Add Two Numbers
In this program declares 4 variables of type int, float, double and char. Then, the size of each variable is evaluated using sizeof operator.
To find the size of variable, sizeof operator is used.
The Syntax is:
sizeof(dataType);
Example: Program to Find Size of int, float, double and char
#include <iostream>
using namespace std;
int main()
{
cout << "Size of char: " << sizeof(char) << " byte" << endl;
cout << "Size of int: " << sizeof(int) << " bytes" << endl;
cout << "Size of float: " << sizeof(float) << " bytes" << endl;
cout << "Size of double: " << sizeof(double) << " bytes" << endl;
return 0;
}Output
Size of char: 1 byte Size of int: 4 bytes Size of float: 4 bytes Size of double: 8 bytes
Note: You may get different result if you are using a old computer / laptop.
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In the next Example, we will learn about C++ Swap Two Numbers.