...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::random::traits::make_unsigned_or_unbounded — Converts the argument type T to either an unsigned type or an unbounded integer type.
// In header: <boost/random/traits.hpp> template<typename T> struct make_unsigned_or_unbounded { };
This trait has a single member type
which is either the unsigned type corresponding to T or an unbounded integer type. This trait is used to generate types suitable for the calculation of a range: as a result if T is signed, then member type
should define a type with one more bit precision than T. For built-in types this trait defaults to boost::make_unsigned<T>::type
. For user defined types it simply asserts that the argument type T is either an unbounded integer, or an unsigned one (using std::numeric_limits). User defined specializations may be provided for other cases.