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boost::units::root_typeof_helper
// In header: <boost/units/operators.hpp> template<typename Radicand, typename Index> struct root_typeof_helper { // types typedef unspecified type; // specifies the result type // public static functions static type value(const Radicand &); };
A helper used by root
to take a root of a runtime object using a compile time known index. This template is intended to be specialized. All specializations must conform to the interface shown here. Index
will be either the type passed to pow
or static_rational<N>
for and integer argument, N.
root_typeof_helper
public static functionsstatic type value(const Radicand & base);Carries out the runtime calculation.