C++11: Rvalue References: Move

A move() template function tells the compiler to move from source instead of first copying from source. The source is changed to a "cheap default", i.e., an object that is inexpensive to create and delete. Here is an example:

#include

int main()

 {

    int   i  = 3;

    int & ri = i;

    int   j  = 4;

    int & rj = j;

    rj       = std::move(ri);

    std::cout << rj << std::endl;

    return 0;

}

// Output: 3

The move() template function is equivalent to a static_cast to an rvalue reference type.

References: https://isocpp.org/wiki/faq/cpp11-language#rval; http://en.cppreference.com/w/cpp/utility/move