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 2023. The current version is 1.90.0.

Macro BOOST_VMD_EMPTY

Macro BOOST_VMD_EMPTY

BOOST_VMD_EMPTY — Outputs emptiness.

Synopsis

// In header: <boost/vmd/empty.hpp>

BOOST_VMD_EMPTY(...)

Description

... = any variadic parameters. The parameters are ignored.

This macro is used to output emptiness ( nothing ) no matter what is passed to it.

If you use this macro to return a result, as in 'result BOOST_VMD_EMPTY' subsequently invoked, you should surround the result with BOOST_VMD_IDENTITY_RESULT to smooth over a VC++ problem.