:relfileprefix: ../../../../
[#boost-urls-grammar-string_view_base-08friend-0a]

== xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/grammar.adoc[pass:[grammar]]::operator<<


Format a string to an output stream


=== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/string_view_base.hpp#L873[boost/url/grammar/string_view_base.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
friend
std::ostream&
operator<<(
    std::ostream& os,
    xref:boost/urls/grammar/string_view_base.adoc[string_view_base] const& s);
----


