how to find size of double in c++

To find the size of a double in C++, you can use the sizeof operator. Here are the steps to do it:

1. Declare a variable of type double. For example: cpp double myDouble;

2. Use the sizeof operator to get the size of the double variable. The sizeof operator returns the size in bytes. Here's how you can use it: cpp size_t size = sizeof(myDouble);

In this example, the size variable will store the size of the double variable myDouble.

1. Print the size of the double variable. You can use std::cout to display the size. Here's an example: cpp std::cout << "Size of double: " << size << " bytes" << std::endl;

This will output the size of the double variable in bytes.

Here's the complete code:

#include <iostream>

int main() {
    double myDouble;
    size_t size = sizeof(myDouble);
    std::cout << "Size of double: " << size << " bytes" << std::endl;
    return 0;
}

This code will output the size of the double variable when executed.