[#boost-urls-url_view_base-digest]
= xref:boost/urls/url_view_base/digest.adoc[boost::urls::url_view_base::digest]
:relfileprefix: ../../../
:mrdocs:

Calculate a hash of the url

== Synopsis

Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/url_view_base.hpp#L129[boost/url/url_view_base.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::size_t
digest(std::size_t salt = 0) const noexcept;
----

== Description

This function calculates a hash of the url as if it were always normalized.

== Complexity
Linear in `this‐>size()`.

== Exception Safety
Throws nothing.

== Return Value

A hash value suitable for use in hash‐based containers.

== Parameters

[cols=2]
|===
| Name
| Description
| *salt*
| An initial value to add to the hash
|===


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