[#BloombergLP-bslma-BufferAllocator-2constructor-0fb]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslma.adoc[bslma]::xref:BloombergLP/bslma/BufferAllocator.adoc[BufferAllocator]::BufferAllocator
:relfileprefix: ../../../
:mrdocs:

Constructors

== Synopses

Declared in `<bslma_bufferallocator.h>`

Create a buffer allocator that allocates from the specified `buffer`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bslma/BufferAllocator/2constructor-0fc.adoc[BufferAllocator](
    char* buffer,
    xref:BloombergLP/bslma/Allocator/size_type.adoc[size_type] bufSize,
    xref:BloombergLP/bslma/BufferAllocator/AllocCallback.adoc[AllocCallback] allocCallback = 0);
----

[.small]#xref:BloombergLP/bslma/BufferAllocator/2constructor-0fc.adoc[_» more..._]#

Create a buffer allocator that allocates from the specified `buffer` using the specified alignment `strategy`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bslma/BufferAllocator/2constructor-06.adoc[BufferAllocator](
    char* buffer,
    xref:BloombergLP/bslma/Allocator/size_type.adoc[size_type] bufSize,
    xref:BloombergLP/bslma/BufferAllocator/AlignmentStrategy.adoc[AlignmentStrategy] strategy,
    xref:BloombergLP/bslma/BufferAllocator/AllocCallback.adoc[AllocCallback] allocCallback = 0);
----

[.small]#xref:BloombergLP/bslma/BufferAllocator/2constructor-06.adoc[_» more..._]#

== Parameters

[cols="1,4"]
|===
| Name| Description
| *buffer*
| Memory buffer from which to allocate.
| *bufSize*
| Size (in bytes) of `buffer`.
| *allocCallback*
| Optional callback invoked when allocation fails.
| *strategy*
| Alignment strategy used for allocations.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#