[#boost-urls-grammar-ci_is_less]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/grammar.adoc[grammar]::ci&lowbar;is&lowbar;less
:relfileprefix: ../../../
:mrdocs:

Return true if s0 is less than s1 using case&hyphen;insensitive comparison

== Synopsis

Declared in `&lt;https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/ci_string.hpp#L239[boost&sol;url&sol;grammar&sol;ci&lowbar;string&period;hpp]&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
ci&lowbar;is&lowbar;less(
    core::string&lowbar;view s0,
    core::string&lowbar;view s1) noexcept;
----

== Description

The comparison algorithm implements a case&hyphen;insensitive total order on the set of all strings&semi; however, it is not a lexicographical comparison&period; The function is defined only for strings containing low&hyphen;ASCII characters&period;

== Example
[,cpp]
----
assert( ! ci_is_less( "Boost", "boost" ) );
----
== Return Value

`true` if `s0` is case&hyphen;insensitively less than `s1`, otherwise `false`

== Parameters

[cols=2]
|===
| Name
| Description
| *s0*
| The first string
| *s1*
| The second string
|===

== See Also

xref:boost/urls/grammar/ci_compare.adoc[`ci&lowbar;compare`], xref:boost/urls/grammar/ci_is_equal-0b2.adoc[`ci&lowbar;is&lowbar;equal`]&period;


[.small]#Created with https://www.mrdocs.com[MrDocs]#
