...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Customization point tag type.
Defined in header <boost/json/conversion.hpp>
template< class T> struct try_value_to_tag
This tag type is used by the function try_value_to
to select overloads
of tag_invoke
.
This type is empty; it has no members.
value_to
,
value_to_tag
tag_invoke:
A general pattern for supporting customisable functions
Convenience header <boost/json.hpp>