[#mp_units-utility-fmt_arg_ref-2constructor-06]
= xref:mp_units.adoc[mp_units]::xref:mp_units/utility.adoc[utility]::xref:mp_units/utility/fmt_arg_ref.adoc[fmt_arg_ref]::fmt_arg_ref
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:mrdocs:

Constructors

== Synopses

Declared in `<mp‐units/utility/format.h>`

Default constructor


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:mp_units/utility/fmt_arg_ref/2constructor-0c.adoc[fmt_arg_ref]() = default;
----

[.small]#xref:mp_units/utility/fmt_arg_ref/2constructor-0c.adoc[_» more..._]#

Construct from `int`


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
explicit
xref:mp_units/utility/fmt_arg_ref/2constructor-02.adoc[fmt_arg_ref](int index);
----

[.small]#xref:mp_units/utility/fmt_arg_ref/2constructor-02.adoc[_» more..._]#


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