Top "Copy-and-swap" questions

The copy swap idiom in C++ can be used to simplify the implementation of the assignment operator by used the copy constructor to generate a local copy and swapping it with the current object.

What is the copy-and-swap idiom?

What is this idiom and when should it be used? Which problems does it solve? Does the idiom change when …

c++ copy-constructor assignment-operator c++-faq copy-and-swap
public friend swap member function

In the beautiful answer to the copy-and-swap-idiom there is a piece of code I need a bit of help: class …

c++ c++11 friend copy-and-swap
Why do some people use swap for move assignments?

For example, stdlibc++ has the following: unique_lock& operator=(unique_lock&& __u) { if(_M_owns) unlock(); unique_…

c++ c++11 rvalue-reference move-semantics copy-and-swap
What is copy elision and how does it optimize the copy-and-swap idiom?

I was reading Copy and Swap. I tried reading some links on Copy Elision but could not figure out properly …

c++ optimization copy-and-swap copy-elision