[#boost-urls-named_arg]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::named&lowbar;arg
:relfileprefix: ../../
:mrdocs:

A temporary reference to a named formatting argument

== Synopsis

Declared in `&lt;https://www.github.com/boostorg/url/blob/develop/include/boost/url/format.hpp#L47[boost&sol;url&sol;format&period;hpp]&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class T&gt;
using named&lowbar;arg = &sol;&ast; implementation-defined &ast;&sol;;
----

== Description

This class represents a temporary reference to a named formatting argument used by the xref:boost/urls/format-06.adoc[`format`] function&period;

Named arguments should always be created with the xref:boost/urls/arg.adoc[`arg`] function&period;

Any type that can be formatted into a URL with the xref:boost/urls/format-06.adoc[`format`] function can also be used in a named argument&period; All named arguments are convertible to xref:boost/urls/format_arg.adoc[`format&lowbar;arg`] and can be used in the xref:boost/urls/format-06.adoc[`format`] function&period;

== See Also

xref:boost/urls/arg.adoc[`arg`], xref:boost/urls/format-06.adoc[`format`], xref:boost/urls/format_to-01.adoc[`format&lowbar;to`], xref:boost/urls/format_arg.adoc[`format&lowbar;arg`]&period;


[.small]#Created with https://www.mrdocs.com[MrDocs]#
