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 2013. The current version is 1.90.0.
current_scope_info
// In header: <boost/log/support/exception.hpp> typedef error_info< struct current_scope_info_tag, attributes::named_scope_list > current_scope_info;