[#BloombergLP-bsls-PerformanceHint-prefetchForWriting]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::xref:BloombergLP/bsls/PerformanceHint.adoc[PerformanceHint]::prefetchForWriting
:relfileprefix: ../../../
:mrdocs:

Prefetch one cache line of data at `address` for writing.

== Synopsis

Declared in `<bsls_performancehint.h>`

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

== Description

Prefetch one cache line worth of data at the specified `address` for writing if the compiler built‐in is available (see to the component level document for limitations). Otherwise this method has no effect.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *address*
| memory address to prefetch
|===


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