mp_units::operator‐

Subtraction operator

Synopsis

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

template<
    auto R1,
    auto PO1,
    typename Rep1,
    QuantityPointOf<mp_units::detail::get_absolute_point_origin(PO1)> QP2>
[[nodiscard]]
constexpr
Quantity auto
operator‐(
    quantity_point<R1, PO1, Rep1> const& lhs,
    QP2 const& rhs)
requires requires { lhs.quantity_ref_from(PO1) ‐ rhs.quantity_ref_from(QP2::point_origin); };

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

lhs

The left operand

rhs

The right operand

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