:relfileprefix: ../../../
[#boost-urls-scheme-unknown]

== xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/scheme.adoc[pass:[scheme]]::unknown


Indicates the scheme is not a well-known scheme


=== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/scheme.hpp#L41[boost/url/scheme.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
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unknown
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