Complete Modern C++ - Mandatory Copy Elision - II

The video tutorial explains the concept of copy elision in C++ and its importance in avoiding unnecessary copying of temporary objects. It compares the behavior of copy elision in C++14 and C++17, highlighting that in C++17, copy elision is mandatory under certain conditions. The tutorial demonstrates how this feature can be beneficial, especially for objects that are expensive to copy, and discusses its application in factory functions. The video concludes by summarizing the key points about mandatory copy elision in C++17.

What is the significance of mandatory copy elision in C++17?

Explain the conditions under which copy elision is mandatory.

Describe a scenario where mandatory copy elision would not apply.

How does copy elision affect the performance of returning objects from functions?

What are the differences between copy elision in C++14 and C++17?