[#boost-urls-url_base-remove_authority]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/url_base.adoc[url_base]::remove_authority
:relfileprefix: ../../../
:mrdocs:


Remove the authority

== Synopsis


Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/url_base.hpp#L437[boost/url/url_base.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:boost/urls/url_base.adoc[url_base]&
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‐>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].






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