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

Orders a span relative to a prefix.

== Synopsis

Declared in `<wallet/db.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
operator<(
    std::span<std::byte const> a,
    xref:wallet/BytePrefix.adoc[BytePrefix] b);
----

== Return Value

true if `a` orders before `b`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| The span to compare.
| *b*
| The prefix to compare against.
|===


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