mp_units::operator-

Synopsis

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

template<
    auto R1,
    auto PO1,
    typename Rep1,
    PointOrigin PO2>
requires QuantityPointOf<quantity_point<R1, PO1, Rep1>, PO2{}> &&
             ReferenceOf<MP_UNITS_REMOVE_CONST(decltype(R1)), get_quantity_spec(PO2{})>
[[nodiscard]]
constexpr
Quantity auto
operator-(
    quantity_point<R1, PO1, Rep1> const& qp,
    PO2 po);

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
qp	The left operand
po	The right operand