Copy elision is in the set of things you shouldn’t expect someone who doesn’t program in C++ to know the intricacies of, but is important enough that most peopl

Copy elision is in the set of things you shouldn’t expect someone who doesn’t program in C++ to know the intricacies of, but is important enough that most people writing a lot of C++ should know it (especially since an extra copy constructor call may have unintended side effects and cause tricky bugs).