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
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
boost::parser::attribute
// In header: <boost/parser/parser.hpp> template<typename R, typename Parser> struct attribute { // types typedef unspecified initial_type; typedef unspecified type; };
A type trait that evaluates to the attribute type for parser Parser used to parse range R, as if by calling parse(r, parser), using some R r and Parser parser. Note that this implies that pointers to null-terminated strings are supported types for R. The result is not wrapped in a std::optional like the result of a call to parse() would be. If Parser produces no attribute, the result is the no-attribute sentinel type none.