:relfileprefix: ../../../
[#boost-urls-url_view_base-has_fragment]

= xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/url_view_base.adoc[pass:[url_view_base]]::has_fragment


Return true if a fragment is present


== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/url_view_base.hpp#L2090[boost/url/url_view_base.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
bool
has_fragment() const noexcept;
----

== Description


This function returns true if the url
contains a fragment.
An empty fragment is distinct from
no fragment.

=== Example
[,cpp]
----
assert( url_view( "http://www.example.com/index.htm#anchor" ).has_fragment() );
----

=== Complexity

Constant.

=== Exception Safety

Throws nothing.

=== BNF
[,cpp]
----
URI           = scheme ":" hier-part [ "?" query ] [ "#" fragment ]

relative-ref  = relative-part [ "?" query ] [ "#" fragment ]
----

=== Specification

* link:https://datatracker.ietf.org/doc/html/rfc3986#section-3.5[3.5. Fragment (rfc3986)]








== See Also


xref:boost/urls/url_view_base/encoded_fragment.adoc[encoded_fragment]
,
xref:boost/urls/url_view_base/fragment.adoc[fragment]
.