:relfileprefix: ../../../
[#A6FA49039B2AEF62F687BE8AA2C4AAAC9D8871C3]

= Function ci_is_less

pass:v,q[Return true if s0 is less than s1 using case-insensitive comparison]


== Synopsis

Declared in header `</boost/url/grammar/ci_string.hpp#L224[boost/url/grammar/ci_string.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
bool
ci_is_less(
    string_view s0,
    string_view s1) noexcept;
----

== Description

pass:v,q[The comparison algorithm implements a] pass:v,q[case-insensitive total order on the set]
pass:v,q[of all strings; however, it is not a]
pass:v,q[lexicographical comparison.]
pass:v,q[The function is defined only for strings]
pass:v,q[containing low-ASCII characters.]

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



== Return Value

* `bool` 


== Parameters

|===
| Name | Type 

| *s0*
| `string_view`

| *s1*
| `string_view`

|===