Gain insights into using Modern C++ for embedded programming. Learn about safety-critical systems, optimize performance, manage limited resources, and handle parallel execution effectively.

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C++11

C++ 17

Embedded Programming with Modern C++  is highly valuable for each professional programmer.

In the past, embedded and system programming have had their pitfalls, but modern C++ has been designed to be a better language for this type of development, addressing the previous pitfalls/requirements explicitly. What are these requirements? Embedded systems deal with safety-critical systems, meaning they must guarantee high performance combined with limited resources, while also working in parallel.

The scope of this course goes beyond just embedded programming. Developers who write servers, games, or trading systems may especially benefit from this course because they also have to deal with safety-critical systems, high performance, reduced resources, and parallel execution in their jobs.

To get the most out of the course, you only need a basic understanding of C++. Building off this understanding, this course goes over all the essentials of embedded programming with Modern C++.

Let's get started!

Embedded Programming with Modern C++

If the variable is never modified there is no need for synchronization by using an expensive `lock` or an `atomic`. We must ensure that it is initialized in a thread-safe way. 

There are **four** ways in C++ to initialize variables in a thread-safe way. 

* Constant expressions.
* The function `std::call_once` in combination with the flag `std::once_flag`.
* A static variable with block scope.

><span style="font-size: 2em">🔑</span> **Thread-safe initialization in the main-thread** 
> 
> The easiest and fourth way to initialize a variable in a thread-safe way: initialize the variable in the main-thread before we create any child threads.

# Constant Expressions

Constant expressions can be evaluated by the compiler at compile time. They are implicitly thread-safe. Placing the keyword `constexpr` in front of a variable makes the variable a constant expression. This constant expression must be initialized immediately. 

If the variable is never modified there is no need for synchronization by using an expensive `lock` or an `atomic`. We must ensure that it is initialized in a thread-safe way. 

There are **four** ways in C++ to initialize variables in a thread-safe way. 

* Constant expressions.
* The function `std::call_once` in combination with the flag `std::once_flag`.
* A static variable with block scope.

><span>🔑</span> **Thread-safe initialization in the main-thread** 
> 
> The easiest and fourth way to initialize a variable in a thread-safe way: initialize the variable in the main-thread before we create any child threads.

# Constant Expressions

Constant expressions can be evaluated by the compiler at compile time. They are implicitly thread-safe. Placing the keyword `constexpr` in front of a variable makes the variable a constant expression. This constant expression must be initialized immediately. 

In this lesson, we will learn about the three ways for thread-safe initialization of data.


Introduction

Safety-Critical Systems

High Performance

Reduced Resources

Several Tasks Simultaneously

Conclusion

Thread-Safe Initialization of Data