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

Return a pointer to the alternative object with index (template parameter) `t_INDEX` in the specified `obj`, or a null pointer if `obj` itself is a null pointer or if `t_INDEX` is not the index of the currently active alternative. `t_INDEX` shall be a valid alternative index.

== 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 const>::type
get_if(xref:bsl/variant.adoc[variant<t_HEAD, t_TAIL...>] const* obj) noexcept;
----


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