[#std-tuple_size]
= xref:std.adoc[std]::tuple&lowbar;size
:relfileprefix: ../
:mrdocs:

Number of elements in a lite&lowbar;tuple&period;

== Synopsis

Declared in `&lt;folly&sol;detail&sol;tuple&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;typename&period;&period;&period; Ts&gt;
struct tuple&lowbar;size
    : std::integral&lowbar;constant&lt;size&lowbar;t, sizeof&period;&period;&period;(Ts)&gt;
----

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `std::integral&lowbar;constant&lt;size&lowbar;t, sizeof&period;&period;&period;(Ts)&gt;`
| 
|===


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