:relfileprefix: ../../../
[#A1D3F279F3334BB451F12C583A478E156AC9582A]

= Function url::remove_port

pass:v,q[Remove the port]


== Synopsis

Declared in header `</boost/url/url.hpp#L460[boost/url/url.hpp,window=blank_]>`

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

== Description

pass:v,q[If a port exists, it is removed. The rest] pass:v,q[of the authority is unchanged.]

=== Example
[,cpp]
----
assert( url( "http://www.example.com:80" ).remove_port().authority().buffer() == "www.example.com" );
----

=== Postconditions
[,cpp]
----
this->has_port() == false && this->port_number() == 0 && this->port() == ""
----

=== Complexity
pass:v,q[Linear in `this->size()`.]

=== Exception Safety
pass:v,q[Throws nothing.]

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

port          = *DIGIT
----

=== Specification

* link:https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.3[            3.2.3. Port (rfc3986)]



== Return Value

* ``