Fortran scalar value representation.

For kinded Fortran types where different kinds use different representations, e.g. INTEGER, the general pattern is to export a rank-2 function each for unary and binary operations. They are restricted with a type class appropriate to the underlying values stored e.g. Integral, RealFloat. The function is then specialized depending on the value's representation - and thus kind, since the kind informs the representation.

For more details, see the Machine module.