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mp_units::operator<=>

Three-way comparison operator

Synopsis

Declared in <mp-units/framework/quantity.h>

template<auto R1, typename Rep1, auto R2, typename Rep2>
  requires CommonlyComparableQuantities<quantity<R1, Rep1>, quantity<R2, Rep2>> &&
           std::three_way_comparable<typename std::common_type_t<quantity<R1, Rep1>, quantity<R2, Rep2>>::rep>
[[nodiscard]] constexpr auto operator<=>(quantity<R1, Rep1> const& lhs, quantity<R2, Rep2> const& rhs);

Note

This function is a hidden friend of quantity, declared inside an implementation-defined base class: it can be found only through argument-dependent lookup.

Return Value

The relative order of the objects

Note

The return value should not be discarded.

Parameters

NameDescription
lhsThe left operand
rhsThe right operand