...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
The TR1 technical report describes extensions to the C++ standard library. Many of these extensions will be considered for the next iteration of the C++ standard. TR1 describes a tuple type, and support for treating std::pair as a type of tuple.
Fusion provides full support for the TR1 Tuple interface, and the extended uses of std::pair described in the TR1 document.