[EMCpp]Item-25 Use std::move on Rvalue References, std::forward on Universal References
· ☕ 4 min read
But don’t apply std::move or std::forward to local objects if they would otherwise be eligible for the return value optimization.
[EMCpp]Item-24 Distinguish Universal References From Rvalue References
· ☕ 3 min read
If a function template parameter has type T&& for a deduced type T, or if an object is declared using auto&&, the parameter or object is a universal reference.
[EMCpp]Item-23 Understand std::Move and std::Forward
· ☕ 2 min read
std::move performs an unconditional cast to an rvalue, while std::forward casts its argument to an rvalue only if that argument is bound to an rvalue.
[EMCpp]Item-22 When Using Pimple Idiom, Define Special Member Functions in the Implementation File
· ☕ 4 min read
For std::unique_ptr pImpl pointers, declare special member functions in the class header, but implement them in the implementation file.
[EMCpp]Item-21 Prefer std::make_unique and std::make_shared to Direct Use of New
· ☕ 5 min read
Compared to new, make functions eliminate source code duplication, improve exception safety, and, for std::make_shard and std::allocate_shared, generate code that’s smaller and faster.
