[#bsl-operator_lt-0e1]
= xref:bsl.adoc[bsl]::operator<
:relfileprefix: ../
:mrdocs:

Return whether the specified queues compare lexicographically; see the non‐member `operator<` in the `bsl` namespace.

== Synopsis

Declared in `<bslstl_queue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class VALUE2,
    class CONTAINER2>
bool
operator<(
    xref:bsl/queue-0a5.adoc[queue<VALUE2, CONTAINER2>] const& lhs,
    xref:bsl/queue-0a5.adoc[queue<VALUE2, CONTAINER2>] const& rhs);
----

[NOTE]
====
This function is a https://en.cppreference.com/w/cpp/language/friend[hidden friend] of xref:bsl/queue-0a5.adoc[queue], declared only inside that class: it can be found only through argument-dependent lookup.
====

== Return Value

`true` if `lhs` is lexicographically less than `rhs`, otherwise `false`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *lhs*
| left‐hand queue operand
| *rhs*
| right‐hand queue operand
|===


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