:relfileprefix: ../../../
[#680D50F4D016E3F4E71B749785EE24D66341E679]

= Function url_view_base::fragment

pass:v,q[Return the fragment]


== Synopsis

Declared in header `</boost/url/url_view_base.hpp#L2149[boost/url/url_view_base.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
template<class StringToken = xref:boost/urls/string_token.adoc[string_token]::xref:boost/urls/string_token/return_string.adoc[return_string]>
StringToken::result_type
fragment(StringToken&& token) const;
----

== Description

pass:v,q[This function calculates the fragment] pass:v,q[of the url, with percent escapes decoded]
pass:v,q[and without the leading pound sign ('#')]
pass:v,q[whose presence indicates that the url]
pass:v,q[contains a fragment.]
pass:v,q[This function accepts an optional]
pass:v,q[StringToken]
pass:v,q[parameter which]
pass:v,q[controls the return type and behavior]
pass:v,q[of the function:]

* pass:v,q[When called with no arguments,]
pass:v,q[the return type of the function is]
pass:v,q[`std::string`. Otherwise]

* pass:v,q[When called with a string token,]
pass:v,q[the behavior and return type of the]
pass:v,q[function depends on the type of string]
pass:v,q[token being passed.]

=== Example
[,cpp]
----
assert( url_view( "http://www.example.com/index.htm#a%2D1" ).fragment() == "a-1" );
----

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

=== Exception Safety
pass:v,q[Calls to allocate may throw.]
pass:v,q[String tokens may throw exceptions.]

=== BNF
[,cpp]
----
fragment        = *( pchar / "/" / "?" )

fragment-part   = [ "#" fragment ]
----

=== Specification

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



== Return Value

* `result_type` 


== Parameters

|===
| Name | Type 

| *token*
| ``

|===