[#boost-urls-grammar-ci_digest]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/grammar.adoc[grammar]::ci&lowbar;digest
:relfileprefix: ../../../
:mrdocs:

Return the case&hyphen;insensitive digest of a string

== Synopsis

Declared in `&lt;https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/ci_string.hpp#L140[boost&sol;url&sol;grammar&sol;ci&lowbar;string&period;hpp]&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::size&lowbar;t
ci&lowbar;digest(core::string&lowbar;view s) noexcept;
----

== Description

The hash function is non&hyphen;cryptographic and not hardened against algorithmic complexity attacks&period; Returned digests are suitable for usage in unordered containers&period; The function is defined only for strings containing low&hyphen;ASCII characters&period;

== Return Value

The digest

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| The string
|===


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