==math:crc32==
{{Mark|Updated with Version 9.1:}} support for empty sequence.
{| width='100%'
|-
| width='120' | '''Signatures'''
|{{Func|math:crc32|$str string as xs:string?|xs:hexBinary?}}<br />
|-
| '''Summary'''
|Calculates the CRC32 check sum of the given string {{Code|$strstring}}.<br/>If {{Code|$arg}} is the an empty sequenceis supplied, the empty sequence is returned.
|-
| '''Examples'''