:relfileprefix: ../../../../
[#boost-urls-grammar-ci_less-operator_call]

= xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/grammar.adoc[pass:[grammar]]::xref:boost/urls/grammar/ci_less.adoc[pass:[ci_less]]::operator()



== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/ci_string.hpp#L342[boost/url/grammar/ci_string.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
xref:std.adoc[std]::size_t
operator()(
    core::string_view s0,
    core::string_view s1) const noexcept;
----