[#bsl-pair-0b-2conversion-0e]
= xref:bsl.adoc[bsl]::xref:bsl/pair-0b.adoc[pair]::operator std::tuple<PARAM_1&, decltype(std::ignore)&>
:relfileprefix: ../../
:mrdocs:

This overload of `template <class PARAM_1, class PARAM_2> operator std::tuple<PARAM_1&, PARAM_2&>()` is called when the (template parameter) `PARAM_2` (second element's type) is the type of `std::ignore`.

== Synopsis

Declared in `<bslstl_pair.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class PARAM_1,
    class = void>
requires bsl::is_convertible<T1, PARAM_1>::value
operator std::tuple<PARAM_1&, decltype(std::ignore)&>() noexcept;
----


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