[#absl-MemcpyCrc32c]
= xref:absl.adoc[absl]::MemcpyCrc32c
:relfileprefix: ../
:mrdocs:

Copy bytes while computing the CRC32C value of the copied data.

== Synopsis

Declared in `<absl/crc/crc32c.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:absl/crc32c_t.adoc[crc32c_t]
MemcpyCrc32c(
    void* dest,
    void const* src,
    size_t count,
    xref:absl/crc32c_t.adoc[crc32c_t] initial_crc = crc32c_t{0});
----

== Description

Copies `src` to `dest` using `memcpy()` semantics, returning the CRC32C value of the copied buffer.

Using `MemcpyCrc32c()` is potentially faster than performing the `memcpy()` and `ComputeCrc32c()` operations separately.

== Return Value

The CRC32C value of the copied bytes.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *dest*
| The destination buffer.
| *src*
| The source buffer.
| *count*
| The number of bytes to copy.
| *initial_crc*
| The CRC32C value to extend.
|===


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