[#BloombergLP-bdlb-NullableAllocatedValue_PointerBitsPair-readFlag]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/NullableAllocatedValue_PointerBitsPair.adoc[NullableAllocatedValue_PointerBitsPair]::readFlag
:relfileprefix: ../../../
:mrdocs:

Return the value of the flag specified by `idx`. The behavior is undefined unless `idx < t_NUM_BITS`.

== Synopsis

Declared in `<bdlb_nullableallocatedvalue_pointerbitspair.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
readFlag(unsigned int idx) const;
----

== Return Value

`true` if the flag at `idx` is set, and `false` otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *idx*
| index of the flag to read
|===


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