:relfileprefix: ../../../
[#boost-urls-url-remove_authority]

= xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/url.adoc[pass:[url]]::remove_authority


Remove the authority


== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/url.hpp#L418[boost/url/url.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
xref:boost/urls/url.adoc[url]&
remove_authority();
----

== Description


This function removes the authority,
which includes the userinfo, host, and
a port if present.

=== Example
[,cpp]
----
assert( url( "http://example.com/echo.cgi" ).remove_authority().buffer() == "http:/echo.cgi" );
----

=== Postconditions
[,cpp]
----
this->has_authority() == false && this->has_userinfo() == false && this->has_port() == false
----

=== Complexity

Linear in `this-&gt;size()`.

=== Exception Safety

Throws nothing.

=== BNF
[,cpp]
----
authority     = [ userinfo "@" ] host [ ":" port ]

userinfo      = *( unreserved / pct-encoded / sub-delims / ":" )
host          = IP-literal / IPv4address / reg-name
port          = *DIGIT
----

=== Specification

* link:https://datatracker.ietf.org/doc/html/rfc3986#section-3.2[            3.2. Authority (rfc3986)]








== See Also


xref:boost/urls/url_base/set_encoded_authority.adoc[set_encoded_authority]
.