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checksums.murmur: should be unsigned int32.

db4
John Benediktsson 2013-11-22 17:06:18 -08:00
parent 1367ced138
commit 3207dac8a0
2 changed files with 8 additions and 5 deletions
basis/checksums/murmur

9
basis/checksums/murmur/murmur-tests.factor
View File

@ -3,7 +3,8 @@ IN: checksums.murmur
{ 455139366 } [ "asdf" 0 <murmur3-32> checksum-bytes ] unit-test
{ 417250299 } [ "asdf" 156 <murmur3-32> checksum-bytes ] unit-test
{ -392455434 } [ "abcde" 0 <murmur3-32> checksum-bytes ] unit-test
{ -1850534962 } [ "12345678" 0 <murmur3-32> checksum-bytes ] unit-test
{ -1710454456 } [ "12345678" 156 <murmur3-32> checksum-bytes ] unit-test
{ -734568571 } [ "hello, world!!!" 156 <murmur3-32> checksum-bytes ] unit-test
{ 3902511862 } [ "abcde" 0 <murmur3-32> checksum-bytes ] unit-test
{ 2517562459 } [ "abcde" 156 <murmur3-32> checksum-bytes ] unit-test
{ 2444432334 } [ "12345678" 0 <murmur3-32> checksum-bytes ] unit-test
{ 2584512840 } [ "12345678" 156 <murmur3-32> checksum-bytes ] unit-test
{ 3560398725 } [ "hello, world!!!" 156 <murmur3-32> checksum-bytes ] unit-test

4
basis/checksums/murmur/murmur.factor
View File

@ -1,7 +1,9 @@
! Copyright (C) 2013 John Benediktsson.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors checksums fry grouping io.binary kernel math
math.bitwise sequences ;
IN: checksums.murmur
TUPLE: murmur3-32 seed ;
@ -36,6 +38,6 @@ M: murmur3-32 checksum-bytes ( bytes checksum -- value )
[ be> (hash-chunk) bitxor bitxor 32-bit ] bi*
[ -16 shift ] [ bitxor 0x85ebca6b * 32-bit ] bi
[ -13 shift ] [ bitxor 0xc2b2ae35 * 32-bit ] bi
[ -16 shift ] [ bitxor 32 >signed ] bi ;
[ -16 shift ] [ bitxor ] bi ;
INSTANCE: murmur3-32 checksum