C++ Program to Find Size of Int Float Double and Char Data types

Problem

Write a C++ Program to Find Size of Int Float Double and Char data type.

Solution

The sizeof operator is used to determine the size of a variable

Here’s the sample code snippet showing how to find the size of Int Float Double and Char data types in C++ programming language.

#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