/ 
Digest-xxHash64-0.001_01
River stage zero No dependents
/ Digest::xxHash64

NAME

Digest::xxHash64 - Calculate both 32 and 64-bit xxHash values from Perl

SYNOPSIS

use Digest::xxHash64 qw(xxhash32 xxhash32_hex xxhash64 xxhash64_hex);

my $content = join '', 'a' .. 'z';

my $hash32     = xxhash32( $content, 0 );
my $hex32      = xxhash32_hex( $content, 0 );
my $hash64     = xxhash64( $content, 0 );
my $hex64      = xxhash64_hex( $content, 0 );

DESCRIPTION

xxHash is an Extremely fast Hash algorithm, running at RAM speed limits. It successfully completes the SMHasher test suite which evaluates collision, dispersion and randomness qualities of hash functions. See the official repository for more information.

FUNCTION INTERFACE

Nothing is exported by default.

xxhash32($input, $seed)

Returns the 32-bit hash of $input using 32-bit seed $seed.

xxhash32_hex

Returns an 8-digit hexadecimal string containing the 32-bit hash in network (big endian) order. This is what the command line utility xxh32sum reports.

xxhash64

Returns the 64-bit hash of $input using 64-bit seed $seed.

Currently, if your Perl doesn't natively support 64-bit integers, this is not going to be accurate. You should still be able to use xxhash64_hex. However, I have not tested this.

xxhash64_hex

Returns a 16-digit hexadecimal string containing the 64-bit hash in network (big endian) order. This is what the command line utility xxh64sum reports.

SEE ALSO

xxHash
Digest::xxHash

AUTHOR

A. Sinan Unur <nanis@cpan.org>

COPYRIGHT

Copyright (C) 2015 by A. Sinan Unur

LICENSE

The MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.