Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
This is an older version of Boost and was released in 2018. The current version is 1.90.0.
Swap two header objects.
Defined in header <boost/beast/http/message.hpp>
template< bool isRequest, class Fields> void swap( header< isRequest, Fields >& m1, header< isRequest, Fields >& m2);
Fields is Swappable.
Convenience header <boost/beast/http.hpp>