[#BloombergLP-balst-StackTraceTestAllocator-reportBlocksInUse]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balst.adoc[balst]::xref:BloombergLP/balst/StackTraceTestAllocator.adoc[StackTraceTestAllocator]::reportBlocksInUse
:relfileprefix: ../../../
:mrdocs:

Write a report to the specified `ostream`, reporting the unique call‐stacks for each block that has been allocated and has not yet been freed. If `ostream` is not specified, the value of `ostream` passed to the last call to `setOstream` will be used. If `setOstream` was never called, `bsl::cerr` will be used.

== Synopsis

Declared in `<balst_stacktracetestallocator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
reportBlocksInUse(std::ostream* ostream = 0) const;
----


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