mp_units::operator-

Subtraction operator

Synopsis

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

template<PointOrigin PO1, auto R2, auto PO2, typename Rep2>
  requires QuantityPointOf<quantity_point<R2, PO2, Rep2>, PO1{}> &&
           ReferenceOf<MP_UNITS_NTTP_HACK(decltype(R2)), get_quantity_spec(PO1{})>
[[nodiscard]] constexpr Quantity auto operator-(PO1 po, quantity_point<R2, PO2, Rep2> const& qp);

Note

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

Return Value

Note

The return value should not be discarded.

Parameters

Name	Description
po	The left operand
qp	The right operand