mp_units::named_unit<Symbol, U>

Specialization for unit of a specified base quantity

Synopsis

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

template<symbol_text Symbol, Unit auto QS>
  requires(!Symbol.empty()) && detail::is_positive_canonical_unit_mag<U>
struct named_unit<Symbol, U> : /* implementation-defined */

Description

Associates a unit with a specified base quantity. For example si::metre is a unit to measure isq::length in the SI system.

NOTE

This is the preferred way to define a measurement unit for a specific base quantity.

NOTE

It does not have to (or sometimes even can't) be a proper system's base unit. For example a base unit of mass in the SI is si::kilogram but here you are about to provide an si::gram and it will work just fine as those two are convertible to each other. A similar case would be the cgs::centimetre that is a base unit for isq::length in the CGS system.

Base Classes

Name	Description
/* implementation-defined */

Type Aliases

Name
_base_type_

Static Data Members

Name	Description
_quantity_spec_
_symbol_	Unique base unit identifier

Template Parameters

Name	Description
Symbol	a short text representation of the unit
QuantitySpec	a specification of a base quantity to be measured with this unit
Unit	a unit for which we provide a special name