Beginning C++17: From Novice to Professional

© Ivor Horton and Peter Van Weert 2018

Ivor Horton and Peter Van WeertBeginning C++17https://doi.org/10.1007/978-1-4842-3366-5_17

17. Move Semantics

Ivor Horton¹  and Peter Van Weert²

(1)

Stratford-upon-Avon, Warwickshire, UK

(2)

Kessel-Lo, Belgium

 

This chapter complements and completes several key topics discussed in the middle parts of the book. In Chapters 11 and 12, for instance, you gained insight into the mechanics behind the copying of objects, that is, copy constructors and assignment operators. And from Chapter 8 you know to prefer pass-by-reference over pass-by-value to avoid undue copying of parameters. And for a long time, that was basically all you needed to know. C++ offered facilities to copy objects, and if you wanted to avoid costly ...