xxHash binding
luarocks install xxhash --from=http://mah0x211.github.io/rocks/
val:int = xxhash.xxh32( data:string, seed:uint )
local xxhash = require('xxhash');
local res = xxhash.xxh32( 'abc', 0x5bd1e995 );
print(res); -- 3185488385
xh:table = xxhash.init( seed:uint )
xh:update( data:string )
res:uint = xh:digest()
xh:reset( [seed:uint] )
local xxhash = require('xxhash');
local xh = xxhash.init( 0x5bd1e995 );
local res;
print( xh ); -- 'xxhash: 0x7f95c8d003a8'
xh:update('abc');
res = xh:digest();
print( res ); -- 3185488385
xh:reset();
xh:update('a');
xh:update('bc');
res = xh:digest();
print( res ); -- 3185488385