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

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    xref:mp_units/QuantitySpec.adoc[QuantitySpec] From,
    xref:mp_units/QuantitySpec.adoc[QuantitySpec] To>
[[nodiscard]]
consteval
bool
castable(
    From from,
    To to);
----


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