mp_units::operator‐

Subtraction operator

Synopsis

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

template<
    PointOrigin PO1,
    /* implementation-defined */ PO2>
requires (PointOriginFor<PO2, get_quantity_spec(PO1{})> || PointOriginFor<PO1, get_quantity_spec(PO2{})>) &&
            (is_derived_from_specialization_of_v<PO1, relative_point_origin> ||
             is_derived_from_specialization_of_v<PO2, relative_point_origin>)
[[nodiscard]]
constexpr
Quantity auto
operator‐(
    PO1 lhs,
    PO2 rhs);

Note	This function is a hidden friend of absolute_point_origin, 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

lhs

The left operand

rhs

The right operand

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