[#BloombergLP-bsls-PerformanceHint-rarelyCalled]
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:mrdocs:

This is an empty function that is marked as rarely called using pragmas&period; If this function is placed in a block of code inside a branch, the compiler will optimize the assembly code generated and mark the block as unlikely&period; Note that this function is intentionally not inlined&period;

== Synopsis

Declared in `&lt;bsls&lowbar;performancehint&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
void
rarelyCalled();
----


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