[#BloombergLP-bdlc-PackedIntArrayImp-02-reserveCapacity-0e]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/PackedIntArrayImp-02.adoc[PackedIntArrayImp<PackedIntArrayImp_Unsigned>]::reserveCapacity
:relfileprefix: ../../../
:mrdocs:

Make the capacity of this array at least the specified `numElements`. The specified `maxValue` denotes the maximum element value that will be subsequently added to this array. After this call `numElements` having values in the range `[0, maxValue]` are guaranteed to not cause a reallocation. This method has no effect if the current capacity meets or exceeds the required capacity. The behavior is undefined unless `0 <= maxValue`.

== Synopsis

Declared in `<bdlc_packedintarray.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
reserveCapacity(
    std::size_t numElements,
    xref:BloombergLP/bdlc/PackedIntArrayImp-02/ElementType.adoc[ElementType] maxValue);
----


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