mp_units::reference

Synopsis

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

template<
    QuantitySpec Q,
    Unit U>
struct reference;

Description

Quantity reference describes all the properties of a quantity besides its representation type.

In most cases this class template is not explicitly instantiated by the user. It is implicitly instantiated by the library's framework while binding a quantity specification with a compatible unit.


Reference auto kmph = isq::speed[km / h];
QuantityOf<isq::speed[km / h]> auto speed = 90 * kmph;

The following syntaxes are not allowed: 2 / kmph, kmph * 3, kmph / 4, 70 * isq::length[km]/ isq:time[h].

Friends

Name	Description
`mp_units::cbrt`	Computes the cubic root of a reference
`mp_units::sqrt`	Computes the square root of a reference
`mp_units::pow`	Computes the value of a reference raised to the `Num/Den` power
`mp_units::inverse`	Computes the inverse of a reference
`mp_units::operator/`	Divides a unit by a reference
`mp_units::operator/`	Divides a reference by a unit
`mp_units::operator/`	Divides a reference by another reference
`mp_units::operator*`	Multiplies a unit by a reference
`mp_units::operator*`	Multiplies a reference by a unit
`mp_units::operator*`	Multiplies two references
`mp_units::operator==`	Checks whether a reference is equal to a unit
`mp_units::operator==`	Checks whether two references are equal
`mp_units::get_unit`	Returns the unit of a reference
`mp_units::get_quantity_spec`	Returns the quantity specification of a reference whose `Q` is marked `final`
`mp_units::get_quantity_spec`	Returns the quantity specification of a reference