how to find size of int in c++

To find the size of an int in C++, you can use the sizeof operator. The sizeof operator returns the number of bytes occupied by a data type or a variable.

Here is an example of how you can find the size of an int in C++:

#include <iostream>

int main() {
    int size = sizeof(int);
    std::cout << "Size of int: " << size << " bytes" << std::endl;

    return 0;
}

Explanation: 1. The sizeof operator is used to determine the size of a data type or a variable. In this case, we want to find the size of an int. 2. We declare a variable size to store the size of the int. 3. The sizeof(int) expression returns the size of the int in bytes, which is then assigned to the size variable. 4. We use the std::cout object to print the size of the int using the << operator. 5. We include the string " bytes" to provide a unit for the size. 6. Finally, we use std::endl to insert a newline character and flush the output stream.

When you run this program, it will output the size of the int in bytes.

Note: The size of the int can vary depending on the compiler and the system you are using. It is typically 4 bytes on most systems, but it can be different on different platforms.