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

== Synopsis

Declared in `<mp‐units/ext/type_traits.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    bool B,
    typename T,
    typename F>
using conditional = /* implementation-defined */::type<T, F>;
----


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