Understanding Object Lifetime For Efficient and Safer C++

C++ has something very few other languages have: a well defined object life cycle. Understanding this key aspect of C++ is critical to writing clean, maintainable, and efficient C++.

Topics we will cover include:

• Understanding RAII
• What does the standard say?
• Member variable lifecycle
• How and why to limit variable scope
• The as-if rule
• std::move and std::forward
• Passing values
• Returning values
• Lifecycle of lambda captures
• How the C++ memory model and object lifetime relate
• Gotchas