Part 18 - Double Primitive Datatype

For a complete table of contents of all the lessons please click below as it will give you a brief of each lesson in addition to the topics it will cover. https://github.com/mytechnotalent/hacking\_c-\_arm64

Today we are going to talk about the C++ double datatype that stores double floating point values.

#include <iostream>
int main()
{
    double my_double = 10.1;
    std::cout << my_double << std::endl;
    return 0;
}

Very simply we create a float and assign a simple value to it and print it.

Let’s compile and link.

g++ -o 0x06_double_primitive_datatype 0x05_double_primitive_datatype.cpp

Let’s run.

./0x06_double_primitive_datatype

We simply see the following.

10.1

It successfully echoed 10.1 to the terminal stdout. Very simple.

Next week we will debug this very simple example.