...one of the most highly
regarded and expertly designed C++ library projects in the
world. — Herb Sutter and Andrei
Fusion's implementation of the TR1 Tuple is also a fusion Forward Sequence. As such the fusion tuple type provides a lot of functionality beyond that required by TR1.
Currently tuple is basically a synonym for
vector, although this may be changed
in future releases of fusion.
template< typename T1 = unspecified, typename T2 = unspecified, ... typename TN = unspecified> class tuple;