[#BloombergLP-bdlsb-MemOutStreamBuf_Util-computeNewCapacity]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsb.adoc[bdlsb]::xref:BloombergLP/bdlsb/MemOutStreamBuf_Util.adoc[MemOutStreamBuf_Util]::computeNewCapacity
:relfileprefix: ../../../
:mrdocs:

Return a suitable capacity for the specified length and capacity.

== Synopsis

Declared in `<bdlsb_memoutstreambuf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
std::size_t
computeNewCapacity(
    std::size_t newLength,
    std::size_t currentCapacity);
----

== Description

Return the capacity to be used to contain data having the specified `newLength` when the current capacity is the specified `currentCapacity`. The returned value may be larger than `newLength` to allow for growth without the need for reallocation.

== Return Value

capacity suitable for `newLength` given `currentCapacity`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *newLength*
| desired data length in characters
| *currentCapacity*
| current buffer capacity in characters
|===


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