[#bsl-operator_lshift-01]
= xref:bsl.adoc[bsl]::operator<<
:relfileprefix: ../
:mrdocs:

Insert a textual representation of the specified bitset `x` into `os`.

== Synopsis

Declared in `<bslstl_bitset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class CHAR_TYPE,
    class TRAITS,
    std::size_t N>
std::basic_ostream<CHAR_TYPE, TRAITS>&
operator<<(
    std::basic_ostream<CHAR_TYPE, TRAITS>& os,
    xref:bsl/bitset.adoc[bitset<N>] const& x);
----


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