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
The utf8mb4 character set (the one you should use by default).
Defined in header <boost/mysql/character_set.hpp>
constexpr
character_set utf8mb4_charset;
Convenience header <boost/mysql.hpp>