mp_units::prefixed_unit

Synopsis

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

template<
    symbol_text Symbol,
    UnitMagnitude auto M,
    PrefixableUnit auto U>
requires (!Symbol.empty() && M != mag<1>)
struct prefixed_unit
    : /* implementation-defined */

Description

Defines a new unit that is a scaled version of another unit with the scaling factor specified by a predefined prefix.

For example:


template<PrefixableUnit auto U>
struct kilo_ : prefixed_unit<"k", mag_power<10, 3>, U> {};

template<PrefixableUnit auto U>
constexpr kilo_<U> kilo;

inline constexpr auto kilogram = si::kilo<gram>;

Base Classes

Name	Description
`/* implementation-defined */`

Type Aliases

Name	Description
`_base_type_`	Exposition-only alias naming this specialization's base type.

Static Data Members

Name	Description
`_mag_`
`_reference_unit_`
`_symbol_`	The prefixed unit's symbol, formed by prepending `Symbol` to `U's` symbol

Template Parameters

Name	Description
Symbol	a prefix text to prepend to a unit symbol
M	scaling factor of the prefix
U	a named unit to be prefixed