CRC64 support.

[ScorpZ]

Hello to all.
What about implementation of CRC64 calculating, in the POCO?
... I found Checksum.h, but it implements CRC32 and Adler32 algorithms only.

[alex]

it would be a welcome addition; the process is very simple - implement it, write tests and send a pull request on GitHub.

[ScorpZ]

Hello alex.
https://github.com/ASMTeam/CRC64_Poco - there's crc64 implementation.