mp_units::get_common_quantity_spec

Synopses

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

Returns the common quantity specification of a single quantity specification

[[nodiscard]]
consteval
QuantitySpec auto
get_common_quantity_spec(auto q);

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Returns the common quantity specification of two quantity specifications

template<
    QuantitySpec Q1,
    QuantitySpec Q2>
requires (detail::have_common_quantity_spec(Q1{}, Q2{}))
[[nodiscard]]
consteval
QuantitySpec auto
get_common_quantity_spec(
    Q1 q1,
    Q2 q2);

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Returns the common quantity specification of three or more quantity specifications

[[nodiscard]]
consteval
QuantitySpec auto
get_common_quantity_spec(
    auto q1,
    auto q2,
    auto q3,
    auto... rest)
requires requires { mp_units::get_common_quantity_spec(mp_units::get_common_quantity_spec(q1, q2), q3, rest...); };

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Return Value

q unchanged
the strongest quantity specification that both arguments are convertible to
the common quantity specification obtained by folding all arguments pairwise

NOTE

The return value should not be discarded.

Template Parameters

Name	Description
Q1	first quantity specification type
Q2	second quantity specification type

Parameters

Name	Description
q	a quantity specification value
q1	first quantity specification value
q2	second quantity specification value
q3	third quantity specification value
rest	any remaining quantity specification values