[#bsl-get_if-0a]
= xref:bsl.adoc[bsl]::get_if
:relfileprefix: ../
:mrdocs:

Return a pointer to the alternative at index `t_INDEX`, or null.

== Synopsis

Declared in `<bslstl_variant.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    std::size_t t_INDEX,
    class t_HEAD,
    class... t_TAIL>
add_pointer<variant_alternative<t_INDEX, variant<t_HEAD, t_TAIL...>>::type>::type
get_if(xref:bsl/variant.adoc[variant<t_HEAD, t_TAIL...>]* obj) noexcept;
----

== Return Value

pointer to the alternative at `t_INDEX`, or null

== Parameters

[cols="1,4"]
|===
| Name| Description
| *obj*
| variant to query
|===


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