[#BloombergLP-balst-StackTraceTestAllocator-2constructor-03]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balst.adoc[balst]::xref:BloombergLP/balst/StackTraceTestAllocator.adoc[StackTraceTestAllocator]::StackTraceTestAllocator
:relfileprefix: ../../../
:mrdocs:

Create a `StackTraceTestAllocator` that records the specified `numRecordedFrames` of stack trace per allocation.

== Synopsis

Declared in `<balst_stacktracetestallocator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
StackTraceTestAllocator(
    int numRecordedFrames,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----

== Description

Optionally specify `basicAllocator`, the allocator from which memory will be provided. If `basicAllocator` is 0, the `MallocFreeAllocator` singleton is used. The behavior is undefined if `numRecordedFrames < 2`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *numRecordedFrames*
| number of stack‐trace frames saved per allocation
| *basicAllocator*
| memory allocator; null uses `MallocFreeAllocator`
|===


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