[#absl-RemoveCrc32cSuffix]
= xref:absl.adoc[absl]::RemoveCrc32cSuffix
:relfileprefix: ../
:mrdocs:

Compute the CRC32C value of a buffer with a suffix removed.

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:absl/crc32c_t.adoc[crc32c_t]
RemoveCrc32cSuffix(
    xref:absl/crc32c_t.adoc[crc32c_t] full_string_crc,
    xref:absl/crc32c_t.adoc[crc32c_t] suffix_crc,
    size_t suffix_length);
----

== Description

Calculates the CRC32C value of an existing buffer with a series of bytes (the suffix) removed from the end of that buffer.

Given a CRC32C value of an existing buffer `full_string_crc`, the CRC32C value of the suffix to remove `suffix_crc`, and the length of that suffix `suffix_len`, returns the CRC32C value of the buffer with suffix removed.

This operation has a runtime cost of O(log(`suffix_len`))

== Return Value

The CRC32C value of the buffer with the suffix removed.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *full_string_crc*
| The CRC32C value of the complete buffer.
| *suffix_crc*
| The CRC32C value of the suffix being removed.
| *suffix_length*
| The length of the suffix being removed.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#