[#BloombergLP-bdlb-CStringLess-operator_call]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/CStringLess.adoc[CStringLess]::operator()
:relfileprefix: ../../../
:mrdocs:

Return `true` if the specified `lhs` string is lexicographically ordered before the specified `rhs` string, and `false` otherwise&period; The behavior is undefined unless both `lhs` and `rhs` point to null&hyphen;terminated strings&period;

== Synopsis

Declared in `&lt;bdlb&lowbar;cstringless&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
operator()(
    char const* lhs,
    char const* rhs) const;
----


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