:relfileprefix: ../../../
[#25A058F6DE2B18FB2927C6184F02331299E865D8]

= Friend operator!=

pass:v,q[Return the result of comparing two URLs]


== Synopsis

Declared in header `</boost/url/url_view_base.hpp#L2473[boost/url/url_view_base.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
friend
bool
operator!=(
    const xref:boost/urls/url_view_base.adoc[url_view_base]& u0,
    const xref:boost/urls/url_view_base.adoc[url_view_base]& u1) noexcept;
----

== Description

pass:v,q[The URLs are compared component by] pass:v,q[component as if they were first]
pass:v,q[normalized.]

=== Example
[,cpp]
----
url_view u0( "http://www.a.com/index.htm" );
url_view u1( "http://www.b.com/index.htm" );
assert( u0 != u1 );
----

=== Effects
[,cpp]
----
url a(u0);
a.normalize();
url b(u1);
b.normalize();
return std::make_tuple(
           a.scheme(),
           a.user(),
           a.password(),
           a.host(),
           a.port(),
           a.path(),
           a.query(),
           a.fragment()) !=
       std::make_tuple(
           b.scheme(),
           b.user(),
           b.password(),
           b.host(),
           b.port(),
           b.path(),
           b.query(),
           b.fragment());
----

=== Complexity
pass:v,q[Linear in `min( u0.size(), u1.size() )`]

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

=== Specification

* link:https://datatracker.ietf.org/doc/html/rfc3986#section-6.2.2[6.2.2 Syntax-Based Normalization (rfc3986)]