[#bsl-operator_lt-05]
= xref:bsl.adoc[bsl]::operator<
:relfileprefix: ../
:mrdocs:

Return `true` if `__x` is lexicographically less than `__y`.

== Synopsis

Declared in `<bslstp_slist.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class _Tp,
    class _Alloc>
bool
operator<(
    xref:bsl/slist.adoc[slist<_Tp, _Alloc>] const& __x,
    xref:bsl/slist.adoc[slist<_Tp, _Alloc>] const& __y);
----

== Return Value

`true` if `__x < __y`, and `false` otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *__x*
| left‐hand list
| *__y*
| right‐hand list
|===


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