[#operator_lt-0d]
= operator<
:mrdocs:

Order two destinations by version, then by program.

== Synopsis

Declared in `<addresstype.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
operator<(
    xref:WitnessUnknown.adoc[WitnessUnknown] const& w1,
    xref:WitnessUnknown.adoc[WitnessUnknown] const& w2);
----

== Return Value

True if `w1` orders before `w2`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *w1*
| The first destination.
| *w2*
| The second destination.
|===


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