[#mp_units-scale]
= xref:mp_units.adoc[mp_units]::scale
:relfileprefix: ../
:mrdocs:

Scale `value` by the unit magnitude passed as `m,` converting to type `To.`

== Synopsis

Declared in `<mp‐units/framework/scaling.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename To,
    xref:mp_units/UnitMagnitude.adoc[UnitMagnitude] M,
    typename From>
requires requires(const From& v) { scaling_traits<From, To>::template scale<M{}>(v); }
[[nodiscard]]
constexpr
To
scale(
    M,
    From const& value);
----


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