Default functions in C++11

C++11 introduced a new use of the default keyword as a way to explicitly tell the compiler that a special member function will use the default implementation.

Introduction

Functions are a set of statements put together that perform a specific task. Member functions include the operators and functions that are members of a class. While the user has to provide these member functions, the compiler generates some of the functions which are known as special member functions.

The special member functi...