[#util-Unexpected]
= xref:util.adoc[util]::Unexpected
:relfileprefix: ../
:mrdocs:

The util&colon;&colon;Unexpected class represents an unexpected value stored in util&colon;&colon;Expected&period;

== Synopsis

Declared in `&lt;util&sol;expected&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class E&gt;
class Unexpected;
----

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:util/Unexpected/2constructor.adoc[`Unexpected`]         [.small]#[constructor]#
| Construct from an error value&period;
| xref:util/Unexpected/error-0b.adoc[`error`] 
| Access the stored error value&period;
|===


== Non-Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:EstimationError.adoc[`&colon;&colon;EstimationError`]
| Build a fee rate estimation error result&colon; a zero&hyphen;value estimation identifying the estimator and target, alongside the error message&period;
|===


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