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
#include <boost/math/tools/tuple.hpp>
This header defines the type boost::math::tuple,
the associated free functions ignore,
tie, make_tuple,
get, and associated types
tuple_size and tuple_element.
These types and functions are aliases for:
std::tuple etc when available, otherwise:
std::tr1::tuple etc when available, otherwise:
boost::fusion::tuple etc if the compiler supports
it, otherwise:
boost::tuple.
So this boost::math::tuple is strongly recommended for maximum
portability.