[#mrdocs-add_reference_from]
= xref:mrdocs.adoc[mrdocs]::add&lowbar;reference&lowbar;from
:relfileprefix: ../
:mrdocs:

Propagate reference qualification from `From` to `To`&period;

== Synopsis

Declared in `&lt;mrdocs&sol;Support&sol;TypeTraits&period;hpp&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;
    typename From,
    typename To&gt;
struct add&lowbar;reference&lowbar;from
    : xref:mrdocs/add_lvalue_reference_from.adoc[add&lowbar;lvalue&lowbar;reference&lowbar;from&lt;From, add&lowbar;rvalue&lowbar;reference&lowbar;from&lowbar;t&lt;From, To&gt;&gt;]
----

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `xref:mrdocs/add_lvalue_reference_from.adoc[add&lowbar;lvalue&lowbar;reference&lowbar;from&lt;From, add&lowbar;rvalue&lowbar;reference&lowbar;from&lowbar;t&lt;From, To&gt;&gt;]`
| Propagate lvalue&hyphen;reference from `From` to `To` if present&period;
|===

== Derived Classes

[cols="1,4"]
|===
| Name| Description
| xref:mrdocs/add_cvref_from.adoc[`add&lowbar;cvref&lowbar;from`] 
| Propagate cv&hyphen;qualification and reference category from `From` to `To`&period;
|===


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