[#BloombergLP-bsls-PerformanceHint-rarelyCalled] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::xref:BloombergLP/bsls/PerformanceHint.adoc[PerformanceHint]::rarelyCalled :relfileprefix: ../../../ :mrdocs: This is an empty function that is marked as rarely called using pragmas. 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. Note that this function is intentionally not inlined. == Synopsis Declared in `<bsls_performancehint.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- static void rarelyCalled(); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#