Boost C++ Application Development Cookbook - Second Edition

How it works...

Here is an example of how the move assignment can be used:

int main() {    person_info vasya;    vasya.name_ = "Vasya";    vasya.second_name_ = "Snow";     person_info new_vasya(boost::move(vasya));     assert(new_vasya.name_ == "Vasya");     assert(new_vasya.second_name_ == "Snow");     assert(vasya.name_.empty());     assert(vasya.second_name_.empty());     vasya = boost::move(new_vasya);     assert(vasya.name_ == "Vasya");     assert(vasya.second_name_ == "Snow");     assert(new_vasya.name_.empty());     assert(new_vasya.second_name_.empty()); }

The Boost.Move library is implemented in a very efficient way. When the C++11 compiler is used, all the macros for rvalues emulation are expanded to C++11-specific features otherwise (on C++03 compilers), rvalues are ...