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

Macro BOOST_VMD_IS_TUPLE

BOOST_VMD_IS_TUPLE — Tests whether a sequence is a Boost PP tuple.

Synopsis

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

BOOST_VMD_IS_TUPLE(sequence)

Description

The macro checks to see if a sequence is a Boost PP tuple. A Boost PP tuple is preprocessor tokens enclosed by a set of parentheses with no preprocessing tokens before or after the parentheses.

sequence = a possible tuple

returns = 1 if the sequence is a Boost PP tuple, 0 if it is not.