[#bsl-visitR]
= xref:bsl.adoc[bsl]::visitR
:relfileprefix: ../
:mrdocs:

Return the result of invoking the specified `visitor` with the currently active alternative of the specified `variant`, implicitly converting the result to the explicitly specified (template parameter) `t_RET`. If `variant` does not hold a value, throw an exception of type `bsl::bad_variant_access`. This function is provided in all language versions for compatibility with the C++03 version (see below), but in new code in C++11 and later, `bsl::visit` should be used instead of this function.

== Synopsis

Declared in `<bslstl_variant.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class t_RET,
    class t_VISITOR,
    class t_VARIANT>
t_RET
visitR(
    t_VISITOR& visitor,
    t_VARIANT&& variant);
----


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