[#BloombergLP-ball-UserFieldValue-theDouble]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/UserFieldValue.adoc[UserFieldValue]::theDouble
:relfileprefix: ../../../
:mrdocs:

Return a reference providing non‐modifiable access to the double value of this object. The behavior is undefined unless `type() == ball::UserFieldType::e_DOUBLE`.

== Synopsis

Declared in `<ball_userfieldvalue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
double const&
theDouble() const;
----


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