diff --git a/Hashes.h b/Hashes.h
index d61d82c8..1308a90e 100644
--- a/Hashes.h
+++ b/Hashes.h
@@ -989,3 +989,11 @@ inline void aesnihash_test ( const void * key, int len, unsigned seed, void * ou
   *(uint64_t *)out = result;
 }
 #endif
+
+#include "prvhash42.h"
+inline void prvhash_test ( const void * key, int len, unsigned seed, void * out )
+{
+  uint8_t hash[8] = {0};
+  prvhash42 ((const uint8_t *)key, len, hash, 8, (uint64_t)seed, 0, 0);
+  memcpy (out, hash, 8);
+}
diff --git a/README.md b/README.md
index 8ac349c3..82621f3c 100644
--- a/README.md
+++ b/README.md
@@ -105,6 +105,7 @@ SMhasher
 | --------------------------------------        |              |          |            |     |                            |
 | [tifuhash_64](doc/tifuhash_64.txt)            |        35.60 |  1679.52 |1212.75 (15)| 276 |                            |
 | [floppsyhash_64](doc/floppsyhash.txt)         |       191.95 |   450.93 | 821.11 (152)| 623 |                            |
+| [prvhash](doc/prvhash.txt)                    |       393.21 |   142.03 | 532.15 (125)| 157 |                            |
 | [chaskey](doc/chaskey.txt)                    |       735.85 |   168.05 | 336.07 (4) |1609 |                            |
 | [SipHash](doc/SipHash.txt)                    |       958.78 |   141.84 | 278.15 (3) |1071 |                            |
 | [HalfSipHash](doc/HalfSipHash.txt)            |       741.59 |   122.25 | 256.22 (20)| 700 | zeroes                     |
diff --git a/doc/prvhash.txt b/doc/prvhash.txt
new file mode 100644
index 00000000..9fee3daa
--- /dev/null
+++ b/doc/prvhash.txt
@@ -0,0 +1,1467 @@
+-------------------------------------------------------------------------------
+--- Testing prvhash "github.com/avaneev/prvhash " GOOD
+
+[[[ Sanity Tests ]]]
+
+Verification value 0x84468B63 ....... PASS
+Running sanity check 1     .......... PASS
+Running AppendedZeroesTest .......... PASS
+
+[[[ Speed Tests ]]]
+
+Bulk speed test - 262144-byte keys
+Alignment  7 -  0.138 bytes/cycle -  393.39 MiB/sec @ 3 ghz
+Alignment  6 -  0.138 bytes/cycle -  393.58 MiB/sec @ 3 ghz
+Alignment  5 -  0.138 bytes/cycle -  393.61 MiB/sec @ 3 ghz
+Alignment  4 -  0.138 bytes/cycle -  393.58 MiB/sec @ 3 ghz
+Alignment  3 -  0.137 bytes/cycle -  393.19 MiB/sec @ 3 ghz
+Alignment  2 -  0.137 bytes/cycle -  393.12 MiB/sec @ 3 ghz
+Alignment  1 -  0.137 bytes/cycle -  392.68 MiB/sec @ 3 ghz
+Alignment  0 -  0.137 bytes/cycle -  392.52 MiB/sec @ 3 ghz
+Average      -  0.137 bytes/cycle -  393.21 MiB/sec @ 3 ghz
+
+Small key speed test -    1-byte keys -    34.91 cycles/hash
+Small key speed test -    2-byte keys -    42.00 cycles/hash
+Small key speed test -    3-byte keys -    49.00 cycles/hash
+Small key speed test -    4-byte keys -    56.00 cycles/hash
+Small key speed test -    5-byte keys -    63.00 cycles/hash
+Small key speed test -    6-byte keys -    69.89 cycles/hash
+Small key speed test -    7-byte keys -    77.00 cycles/hash
+Small key speed test -    8-byte keys -    84.00 cycles/hash
+Small key speed test -    9-byte keys -    90.90 cycles/hash
+Small key speed test -   10-byte keys -    97.90 cycles/hash
+Small key speed test -   11-byte keys -   105.00 cycles/hash
+Small key speed test -   12-byte keys -   112.71 cycles/hash
+Small key speed test -   13-byte keys -   119.98 cycles/hash
+Small key speed test -   14-byte keys -   126.91 cycles/hash
+Small key speed test -   15-byte keys -   133.92 cycles/hash
+Small key speed test -   16-byte keys -   140.88 cycles/hash
+Small key speed test -   17-byte keys -   147.97 cycles/hash
+Small key speed test -   18-byte keys -   156.00 cycles/hash
+Small key speed test -   19-byte keys -   161.92 cycles/hash
+Small key speed test -   20-byte keys -   169.90 cycles/hash
+Small key speed test -   21-byte keys -   176.94 cycles/hash
+Small key speed test -   22-byte keys -   183.96 cycles/hash
+Small key speed test -   23-byte keys -   190.94 cycles/hash
+Small key speed test -   24-byte keys -   197.96 cycles/hash
+Small key speed test -   25-byte keys -   204.93 cycles/hash
+Small key speed test -   26-byte keys -   211.86 cycles/hash
+Small key speed test -   27-byte keys -   220.20 cycles/hash
+Small key speed test -   28-byte keys -   238.28 cycles/hash
+Small key speed test -   29-byte keys -   234.31 cycles/hash
+Small key speed test -   30-byte keys -   251.94 cycles/hash
+Small key speed test -   31-byte keys -   251.82 cycles/hash
+Average                                    142.030 cycles/hash
+
+[[[ 'Hashmap' Speed Tests ]]]
+
+std::unordered_map
+Init std HashMapTest:     768.286 cycles/op (479826 inserts, 1% deletions)
+Running std HashMapTest:  682.826 cycles/op (18.9 stdv)
+
+greg7mdp/parallel-hashmap
+Init fast HashMapTest:    892.918 cycles/op (479826 inserts, 1% deletions)
+Running fast HashMapTest: 532.149 cycles/op (124.6 stdv)  ....... PASS
+
+[[[ Avalanche Tests ]]]
+
+Testing   24-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.672667%
+Testing   32-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.684000%
+Testing   40-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.656000%
+Testing   48-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.646667%
+Testing   56-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.660667%
+Testing   64-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.654667%
+Testing   72-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.644000%
+Testing   80-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.680667%
+Testing   96-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.778000%
+Testing  112-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.678667%
+Testing  128-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.709333%
+Testing  160-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.786000%
+Testing  512-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.728667%
+Testing 1024-bit keys ->  64-bit hashes, 300000 reps worst bias is 0.838000%
+
+[[[ Keyset 'Sparse' Tests ]]]
+
+Keyset 'Sparse' - 16-bit keys with up to 9 bits set - 50643 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected          0.6, actual      1 (1.67x) (1)
+Testing collisions (high 19-26 bits) - Worst is 24 bits: 78/152 (0.51x)
+Testing collisions (high 12-bit) - Expected      50643.0, actual  46547 (0.92x)
+Testing collisions (high  8-bit) - Expected      50643.0, actual  50387 (0.99x) (-256)
+Testing collisions (low  32-bit) - Expected          0.6, actual      0 (0.00x)
+Testing collisions (low  19-26 bits) - Worst is 26 bits: 19/38 (0.50x)
+Testing collisions (low  12-bit) - Expected      50643.0, actual  46547 (0.92x)
+Testing collisions (low   8-bit) - Expected      50643.0, actual  50387 (0.99x) (-256)
+Testing distribution - Worst bias is the 13-bit window at bit 55 - 0.512%
+
+Keyset 'Sparse' - 24-bit keys with up to 8 bits set - 1271626 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected        376.5, actual    141 (0.37x)
+Testing collisions (high 24-36 bits) - Worst is 36 bits: 12/23 (0.51x)
+Testing collisions (high 12-bit) - Expected    1271626.0, actual 1267530 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    1271626.0, actual 1271370 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected        376.5, actual    211 (0.56x)
+Testing collisions (low  24-36 bits) - Worst is 36 bits: 20/23 (0.85x)
+Testing collisions (low  12-bit) - Expected    1271626.0, actual 1267530 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    1271626.0, actual 1271370 (1.00x) (-256)
+Testing distribution - Worst bias is the 17-bit window at bit 50 - 0.105%
+
+Keyset 'Sparse' - 32-bit keys with up to 7 bits set - 4514873 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       4746.0, actual   2287 (0.48x)
+Testing collisions (high 26-39 bits) - Worst is 38 bits: 40/74 (0.54x)
+Testing collisions (high 12-bit) - Expected    4514873.0, actual 4510777 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    4514873.0, actual 4514617 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       4746.0, actual   2442 (0.51x)
+Testing collisions (low  26-39 bits) - Worst is 37 bits: 80/148 (0.54x)
+Testing collisions (low  12-bit) - Expected    4514873.0, actual 4510777 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    4514873.0, actual 4514617 (1.00x) (-256)
+Testing distribution - Worst bias is the 19-bit window at bit 26 - 0.067%
+
+Keyset 'Sparse' - 40-bit keys with up to 6 bits set - 4598479 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       4923.4, actual   2513 (0.51x)
+Testing collisions (high 26-39 bits) - Worst is 34 bits: 651/1230 (0.53x)
+Testing collisions (high 12-bit) - Expected    4598479.0, actual 4594383 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    4598479.0, actual 4598223 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       4923.4, actual   2376 (0.48x)
+Testing collisions (low  26-39 bits) - Worst is 39 bits: 21/38 (0.55x)
+Testing collisions (low  12-bit) - Expected    4598479.0, actual 4594383 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    4598479.0, actual 4598223 (1.00x) (-256)
+Testing distribution - Worst bias is the 19-bit window at bit 13 - 0.058%
+
+Keyset 'Sparse' - 48-bit keys with up to 6 bits set - 14196869 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      46927.3, actual  23180 (0.49x)
+Testing collisions (high 28-43 bits) - Worst is 42 bits: 26/45 (0.57x)
+Testing collisions (high 12-bit) - Expected   14196869.0, actual 14192773 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   14196869.0, actual 14196613 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      46927.3, actual  23679 (0.50x)
+Testing collisions (low  28-43 bits) - Worst is 38 bits: 376/733 (0.51x)
+Testing collisions (low  12-bit) - Expected   14196869.0, actual 14192773 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   14196869.0, actual 14196613 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 60 - 0.019%
+
+Keyset 'Sparse' - 56-bit keys with up to 5 bits set - 4216423 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       4139.3, actual   2060 (0.50x)
+Testing collisions (high 26-39 bits) - Worst is 35 bits: 276/517 (0.53x)
+Testing collisions (high 12-bit) - Expected    4216423.0, actual 4212327 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    4216423.0, actual 4216167 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       4139.3, actual   2095 (0.51x)
+Testing collisions (low  26-39 bits) - Worst is 37 bits: 85/129 (0.66x)
+Testing collisions (low  12-bit) - Expected    4216423.0, actual 4212327 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    4216423.0, actual 4216167 (1.00x) (-256)
+Testing distribution - Worst bias is the 19-bit window at bit 16 - 0.047%
+
+Keyset 'Sparse' - 64-bit keys with up to 5 bits set - 8303633 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16053.7, actual   8019 (0.50x)
+Testing collisions (high 27-41 bits) - Worst is 41 bits: 22/31 (0.70x)
+Testing collisions (high 12-bit) - Expected    8303633.0, actual 8299537 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8303633.0, actual 8303377 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16053.7, actual   7947 (0.50x)
+Testing collisions (low  27-41 bits) - Worst is 29 bits: 64024/128429 (0.50x)
+Testing collisions (low  12-bit) - Expected    8303633.0, actual 8299537 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8303633.0, actual 8303377 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit  3 - 0.045%
+
+Keyset 'Sparse' - 72-bit keys with up to 5 bits set - 15082603 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      52965.5, actual  26838 (0.51x)
+Testing collisions (high 28-43 bits) - Worst is 40 bits: 110/206 (0.53x)
+Testing collisions (high 12-bit) - Expected   15082603.0, actual 15078507 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   15082603.0, actual 15082347 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      52965.5, actual  26711 (0.50x)
+Testing collisions (low  28-43 bits) - Worst is 41 bits: 61/103 (0.59x)
+Testing collisions (low  12-bit) - Expected   15082603.0, actual 15078507 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   15082603.0, actual 15082347 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 63 - 0.025%
+
+Keyset 'Sparse' - 96-bit keys with up to 4 bits set - 3469497 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       2802.7, actual   1370 (0.49x)
+Testing collisions (high 26-39 bits) - Worst is 38 bits: 25/43 (0.57x)
+Testing collisions (high 12-bit) - Expected    3469497.0, actual 3465401 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    3469497.0, actual 3469241 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       2802.7, actual   1408 (0.50x)
+Testing collisions (low  26-39 bits) - Worst is 37 bits: 59/87 (0.67x)
+Testing collisions (low  12-bit) - Expected    3469497.0, actual 3465401 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    3469497.0, actual 3469241 (1.00x) (-256)
+Testing distribution - Worst bias is the 19-bit window at bit 41 - 0.090%
+
+Keyset 'Sparse' - 160-bit keys with up to 4 bits set - 26977161 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected     169446.5, actual  84650 (0.50x)
+Testing collisions (high 29-45 bits) - Worst is 44 bits: 27/41 (0.65x)
+Testing collisions (high 12-bit) - Expected   26977161.0, actual 26973065 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   26977161.0, actual 26976905 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected     169446.5, actual  84423 (0.50x)
+Testing collisions (low  29-45 bits) - Worst is 33 bits: 42292/84723 (0.50x)
+Testing collisions (low  12-bit) - Expected   26977161.0, actual 26973065 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   26977161.0, actual 26976905 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 22 - 0.008%
+
+Keyset 'Sparse' - 256-bit keys with up to 3 bits set - 2796417 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1820.7, actual    948 (0.52x)
+Testing collisions (high 25-38 bits) - Worst is 37 bits: 40/56 (0.70x)
+Testing collisions (high 12-bit) - Expected    2796417.0, actual 2792321 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2796417.0, actual 2796161 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1820.7, actual    921 (0.51x)
+Testing collisions (low  25-38 bits) - Worst is 38 bits: 26/28 (0.91x)
+Testing collisions (low  12-bit) - Expected    2796417.0, actual 2792321 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2796417.0, actual 2796161 (1.00x) (-256)
+Testing distribution - Worst bias is the 19-bit window at bit 35 - 0.060%
+
+Keyset 'Sparse' - 512-bit keys with up to 3 bits set - 22370049 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected     116512.9, actual  58353 (0.50x)
+Testing collisions (high 28-44 bits) - Worst is 44 bits: 16/28 (0.56x)
+Testing collisions (high 12-bit) - Expected   22370049.0, actual 22365953 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   22370049.0, actual 22369793 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected     116512.9, actual  57881 (0.50x)
+Testing collisions (low  28-44 bits) - Worst is 31 bits: 115885/233025 (0.50x)
+Testing collisions (low  12-bit) - Expected   22370049.0, actual 22365953 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   22370049.0, actual 22369793 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 35 - 0.014%
+
+Keyset 'Sparse' - 1024-bit keys with up to 2 bits set - 524801 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected         64.1, actual     32 (0.50x)
+Testing collisions (high 23-33 bits) - Worst is 33 bits: 21/32 (0.65x)
+Testing collisions (high 12-bit) - Expected     524801.0, actual 520705 (0.99x) (-4096)
+Testing collisions (high  8-bit) - Expected     524801.0, actual 524545 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected         64.1, actual     34 (0.53x)
+Testing collisions (low  23-33 bits) - Worst is 32 bits: 34/64 (0.53x)
+Testing collisions (low  12-bit) - Expected     524801.0, actual 520705 (0.99x) (-4096)
+Testing collisions (low   8-bit) - Expected     524801.0, actual 524545 (1.00x) (-256)
+Testing distribution - Worst bias is the 16-bit window at bit  0 - 0.198%
+
+Keyset 'Sparse' - 2048-bit keys with up to 2 bits set - 2098177 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1025.0, actual    510 (0.50x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 22/32 (0.69x)
+Testing collisions (high 12-bit) - Expected    2098177.0, actual 2094081 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2098177.0, actual 2097921 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1025.0, actual    472 (0.46x)
+Testing collisions (low  25-37 bits) - Worst is 28 bits: 8135/16400 (0.50x)
+Testing collisions (low  12-bit) - Expected    2098177.0, actual 2094081 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2098177.0, actual 2097921 (1.00x) (-256)
+Testing distribution - Worst bias is the 18-bit window at bit 15 - 0.093%
+
+
+[[[ Keyset 'Permutation' Tests ]]]
+
+Combination Lowbits Tests:
+Keyset 'Combination' - up to 7 blocks from a set of 8 - 2396744 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1337.5, actual    607 (0.45x)
+Testing collisions (high 25-38 bits) - Worst is 38 bits: 17/20 (0.81x)
+Testing collisions (high 12-bit) - Expected    2396744.0, actual 2392648 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2396744.0, actual 2396488 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1337.5, actual    674 (0.50x)
+Testing collisions (low  25-38 bits) - Worst is 34 bits: 185/334 (0.55x)
+Testing collisions (low  12-bit) - Expected    2396744.0, actual 2392648 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2396744.0, actual 2396488 (1.00x) (-256)
+Testing distribution - Worst bias is the 18-bit window at bit 15 - 0.069%
+
+
+Combination Highbits Tests
+Keyset 'Combination' - up to 7 blocks from a set of 8 - 2396744 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1337.5, actual    708 (0.53x)
+Testing collisions (high 25-38 bits) - Worst is 31 bits: 1418/2674 (0.53x)
+Testing collisions (high 12-bit) - Expected    2396744.0, actual 2392648 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2396744.0, actual 2396488 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1337.5, actual    711 (0.53x)
+Testing collisions (low  25-38 bits) - Worst is 37 bits: 31/41 (0.74x)
+Testing collisions (low  12-bit) - Expected    2396744.0, actual 2392648 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2396744.0, actual 2396488 (1.00x) (-256)
+Testing distribution - Worst bias is the 18-bit window at bit 11 - 0.082%
+
+
+Combination Hi-Lo Tests:
+Keyset 'Combination' - up to 6 blocks from a set of 15 - 12204240 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      34678.6, actual  17393 (0.50x)
+Testing collisions (high 27-42 bits) - Worst is 41 bits: 44/67 (0.65x)
+Testing collisions (high 12-bit) - Expected   12204240.0, actual 12200144 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   12204240.0, actual 12203984 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      34678.6, actual  17395 (0.50x)
+Testing collisions (low  27-42 bits) - Worst is 33 bits: 8735/17339 (0.50x)
+Testing collisions (low  12-bit) - Expected   12204240.0, actual 12200144 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   12204240.0, actual 12203984 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 10 - 0.019%
+
+
+Combination 0x8000000 Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8270 (0.50x)
+Testing collisions (high 27-41 bits) - Worst is 41 bits: 18/31 (0.56x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8145 (0.50x)
+Testing collisions (low  27-41 bits) - Worst is 41 bits: 18/31 (0.56x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit  7 - 0.036%
+
+
+Combination 0x0000001 Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8151 (0.50x)
+Testing collisions (high 27-41 bits) - Worst is 33 bits: 4081/8191 (0.50x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8166 (0.50x)
+Testing collisions (low  27-41 bits) - Worst is 38 bits: 145/255 (0.57x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 28 - 0.038%
+
+
+Combination 0x800000000000000 Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8317 (0.51x)
+Testing collisions (high 27-41 bits) - Worst is 41 bits: 21/31 (0.66x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8060 (0.49x)
+Testing collisions (low  27-41 bits) - Worst is 39 bits: 64/127 (0.50x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 52 - 0.033%
+
+
+Combination 0x000000000000001 Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   7985 (0.49x)
+Testing collisions (high 27-41 bits) - Worst is 36 bits: 512/1023 (0.50x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8190 (0.50x)
+Testing collisions (low  27-41 bits) - Worst is 41 bits: 19/31 (0.59x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 38 - 0.036%
+
+
+Combination 16-bytes [0-1] Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8154 (0.50x)
+Testing collisions (high 27-41 bits) - Worst is 37 bits: 272/511 (0.53x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8240 (0.50x)
+Testing collisions (low  27-41 bits) - Worst is 40 bits: 38/63 (0.59x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 34 - 0.029%
+
+
+Combination 16-bytes [0-last] Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8220 (0.50x)
+Testing collisions (high 27-41 bits) - Worst is 41 bits: 21/31 (0.66x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8214 (0.50x)
+Testing collisions (low  27-41 bits) - Worst is 40 bits: 34/63 (0.53x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 19 - 0.047%
+
+
+Combination 32-bytes [0-1] Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8038 (0.49x)
+Testing collisions (high 27-41 bits) - Worst is 41 bits: 18/31 (0.56x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8130 (0.50x)
+Testing collisions (low  27-41 bits) - Worst is 39 bits: 69/127 (0.54x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 58 - 0.039%
+
+
+Combination 32-bytes [0-last] Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8053 (0.49x)
+Testing collisions (high 27-41 bits) - Worst is 41 bits: 19/31 (0.59x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8168 (0.50x)
+Testing collisions (low  27-41 bits) - Worst is 39 bits: 70/127 (0.55x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 22 - 0.044%
+
+
+Combination 64-bytes [0-1] Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8261 (0.50x)
+Testing collisions (high 27-41 bits) - Worst is 34 bits: 2154/4095 (0.53x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8344 (0.51x)
+Testing collisions (low  27-41 bits) - Worst is 41 bits: 22/31 (0.69x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 28 - 0.033%
+
+
+Combination 64-bytes [0-last] Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8181 (0.50x)
+Testing collisions (high 27-41 bits) - Worst is 36 bits: 517/1023 (0.50x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8178 (0.50x)
+Testing collisions (low  27-41 bits) - Worst is 32 bits: 8178/16383 (0.50x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 21 - 0.054%
+
+
+Combination 128-bytes [0-1] Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8276 (0.51x)
+Testing collisions (high 27-41 bits) - Worst is 38 bits: 141/255 (0.55x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   7962 (0.49x)
+Testing collisions (low  27-41 bits) - Worst is 38 bits: 141/255 (0.55x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 50 - 0.039%
+
+
+Combination 128-bytes [0-last] Tests:
+Keyset 'Combination' - up to 22 blocks from a set of 2 - 8388606 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      16384.0, actual   8166 (0.50x)
+Testing collisions (high 27-41 bits) - Worst is 39 bits: 75/127 (0.59x)
+Testing collisions (high 12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      16384.0, actual   8130 (0.50x)
+Testing collisions (low  27-41 bits) - Worst is 33 bits: 4140/8191 (0.51x)
+Testing collisions (low  12-bit) - Expected    8388606.0, actual 8384510 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    8388606.0, actual 8388350 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit  4 - 0.071%
+
+
+[[[ Keyset 'Window' Tests ]]]
+
+Keyset 'Window' -  32-bit key,  25-bit window - 32 tests, 33554432 keys per test
+Window at   0 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at   1 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at   2 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at   3 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at   4 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at   5 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at   6 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at   7 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at   8 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at   9 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  10 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  11 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  12 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  13 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  14 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  15 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  16 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  17 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  18 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  19 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  20 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  21 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  22 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  23 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  24 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  25 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  26 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  27 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  28 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  29 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  30 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  31 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Window at  32 - Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+
+[[[ Keyset 'Cyclic' Tests ]]]
+
+Keyset 'Cyclic' - 8 cycles of 8 bytes - 1000000 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected        232.8, actual    133 (0.57x)
+Testing collisions (high 24-35 bits) - Worst is 34 bits: 39/58 (0.67x)
+Testing collisions (high 12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected        232.8, actual    110 (0.47x)
+Testing collisions (low  24-35 bits) - Worst is 35 bits: 17/29 (0.58x)
+Testing collisions (low  12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing distribution - Worst bias is the 17-bit window at bit 43 - 0.107%
+
+Keyset 'Cyclic' - 8 cycles of 9 bytes - 1000000 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected        232.8, actual    116 (0.50x)
+Testing collisions (high 24-35 bits) - Worst is 32 bits: 116/232 (0.50x)
+Testing collisions (high 12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected        232.8, actual    123 (0.53x)
+Testing collisions (low  24-35 bits) - Worst is 34 bits: 34/58 (0.58x)
+Testing collisions (low  12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing distribution - Worst bias is the 17-bit window at bit 24 - 0.147%
+
+Keyset 'Cyclic' - 8 cycles of 10 bytes - 1000000 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected        232.8, actual    121 (0.52x)
+Testing collisions (high 24-35 bits) - Worst is 33 bits: 64/116 (0.55x)
+Testing collisions (high 12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected        232.8, actual     95 (0.41x)
+Testing collisions (low  24-35 bits) - Worst is 25 bits: 14673/29802 (0.49x)
+Testing collisions (low  12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing distribution - Worst bias is the 17-bit window at bit 40 - 0.134%
+
+Keyset 'Cyclic' - 8 cycles of 11 bytes - 1000000 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected        232.8, actual    123 (0.53x)
+Testing collisions (high 24-35 bits) - Worst is 31 bits: 256/465 (0.55x)
+Testing collisions (high 12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected        232.8, actual    130 (0.56x)
+Testing collisions (low  24-35 bits) - Worst is 32 bits: 130/232 (0.56x)
+Testing collisions (low  12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing distribution - Worst bias is the 17-bit window at bit 62 - 0.116%
+
+Keyset 'Cyclic' - 8 cycles of 12 bytes - 1000000 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected        232.8, actual    107 (0.46x)
+Testing collisions (high 24-35 bits) - Worst is 34 bits: 33/58 (0.57x)
+Testing collisions (high 12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected        232.8, actual    106 (0.46x)
+Testing collisions (low  24-35 bits) - Worst is 26 bits: 7514/14901 (0.50x)
+Testing collisions (low  12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing distribution - Worst bias is the 17-bit window at bit 20 - 0.133%
+
+Keyset 'Cyclic' - 8 cycles of 16 bytes - 1000000 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected        232.8, actual    120 (0.52x)
+Testing collisions (high 24-35 bits) - Worst is 35 bits: 21/29 (0.72x)
+Testing collisions (high 12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected        232.8, actual    126 (0.54x)
+Testing collisions (low  24-35 bits) - Worst is 33 bits: 76/116 (0.65x)
+Testing collisions (low  12-bit) - Expected    1000000.0, actual 995904 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    1000000.0, actual 999744 (1.00x) (-256)
+Testing distribution - Worst bias is the 17-bit window at bit 10 - 0.114%
+
+
+[[[ Keyset 'TwoBytes' Tests ]]]
+
+Keyset 'TwoBytes' - up-to-4-byte keys, 652545 total keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected         99.1, actual     60 (0.61x)
+Testing collisions (high 23-34 bits) - Worst is 33 bits: 35/49 (0.71x)
+Testing collisions (high 12-bit) - Expected     652545.0, actual 648449 (0.99x) (-4096)
+Testing collisions (high  8-bit) - Expected     652545.0, actual 652289 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected         99.1, actual     45 (0.45x)
+Testing collisions (low  23-34 bits) - Worst is 34 bits: 14/24 (0.56x)
+Testing collisions (low  12-bit) - Expected     652545.0, actual 648449 (0.99x) (-4096)
+Testing collisions (low   8-bit) - Expected     652545.0, actual 652289 (1.00x) (-256)
+Testing distribution - Worst bias is the 16-bit window at bit 11 - 0.145%
+
+Keyset 'TwoBytes' - up-to-8-byte keys, 5471025 total keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       6969.1, actual   3482 (0.50x)
+Testing collisions (high 26-40 bits) - Worst is 38 bits: 60/108 (0.55x)
+Testing collisions (high 12-bit) - Expected    5471025.0, actual 5466929 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    5471025.0, actual 5470769 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       6969.1, actual   3501 (0.50x)
+Testing collisions (low  26-40 bits) - Worst is 40 bits: 18/27 (0.66x)
+Testing collisions (low  12-bit) - Expected    5471025.0, actual 5466929 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    5471025.0, actual 5470769 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 11 - 0.057%
+
+Keyset 'TwoBytes' - up-to-12-byte keys, 18616785 total keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      80695.5, actual  40357 (0.50x)
+Testing collisions (high 28-43 bits) - Worst is 43 bits: 22/39 (0.56x)
+Testing collisions (high 12-bit) - Expected   18616785.0, actual 18612689 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   18616785.0, actual 18616529 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      80695.5, actual  40210 (0.50x)
+Testing collisions (low  28-43 bits) - Worst is 41 bits: 91/157 (0.58x)
+Testing collisions (low  12-bit) - Expected   18616785.0, actual 18612689 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   18616785.0, actual 18616529 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 37 - 0.024%
+
+Keyset 'TwoBytes' - up-to-16-byte keys, 44251425 total keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected     455926.3, actual 226856 (0.50x)
+Testing collisions (high 29-46 bits) - Worst is 44 bits: 56/111 (0.50x)
+Testing collisions (high 12-bit) - Expected   44251425.0, actual 44247329 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   44251425.0, actual 44251169 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected     455926.3, actual 227193 (0.50x)
+Testing collisions (low  29-46 bits) - Worst is 43 bits: 119/222 (0.53x)
+Testing collisions (low  12-bit) - Expected   44251425.0, actual 44247329 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   44251425.0, actual 44251169 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 33 - 0.008%
+
+Keyset 'TwoBytes' - up-to-20-byte keys, 86536545 total keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected    1743569.4, actual 865560 (0.50x)
+Testing collisions (high 30-48 bits) - Worst is 48 bits: 17/26 (0.64x)
+Testing collisions (high 12-bit) - Expected   86536545.0, actual 86532449 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   86536545.0, actual 86536289 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected    1743569.4, actual 866842 (0.50x)
+Testing collisions (low  30-48 bits) - Worst is 47 bits: 30/53 (0.56x)
+Testing collisions (low  12-bit) - Expected   86536545.0, actual 86532449 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   86536545.0, actual 86536289 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit  2 - 0.003%
+
+
+[[[ Keyset 'Text' Tests ]]]
+
+Keyset 'Text' - keys of form "Foo[XXXX]Bar" - 14776336 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      50836.3, actual  25508 (0.50x)
+Testing collisions (high 28-43 bits) - Worst is 43 bits: 17/24 (0.68x)
+Testing collisions (high 12-bit) - Expected   14776336.0, actual 14772240 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   14776336.0, actual 14776080 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      50836.3, actual  25471 (0.50x)
+Testing collisions (low  28-43 bits) - Worst is 43 bits: 17/24 (0.68x)
+Testing collisions (low  12-bit) - Expected   14776336.0, actual 14772240 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   14776336.0, actual 14776080 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 40 - 0.029%
+
+Keyset 'Text' - keys of form "FooBar[XXXX]" - 14776336 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      50836.3, actual  25291 (0.50x)
+Testing collisions (high 28-43 bits) - Worst is 38 bits: 396/794 (0.50x)
+Testing collisions (high 12-bit) - Expected   14776336.0, actual 14772240 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   14776336.0, actual 14776080 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      50836.3, actual  25375 (0.50x)
+Testing collisions (low  28-43 bits) - Worst is 43 bits: 13/24 (0.52x)
+Testing collisions (low  12-bit) - Expected   14776336.0, actual 14772240 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   14776336.0, actual 14776080 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit  7 - 0.023%
+
+Keyset 'Text' - keys of form "[XXXX]FooBar" - 14776336 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      50836.3, actual  25525 (0.50x)
+Testing collisions (high 28-43 bits) - Worst is 40 bits: 107/198 (0.54x)
+Testing collisions (high 12-bit) - Expected   14776336.0, actual 14772240 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   14776336.0, actual 14776080 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      50836.3, actual  25316 (0.50x)
+Testing collisions (low  28-43 bits) - Worst is 43 bits: 17/24 (0.68x)
+Testing collisions (low  12-bit) - Expected   14776336.0, actual 14772240 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   14776336.0, actual 14776080 (1.00x) (-256)
+Testing distribution - Worst bias is the 20-bit window at bit 34 - 0.020%
+
+
+[[[ Keyset 'Zeroes' Tests ]]]
+
+Keyset 'Zeroes' - 204800 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected          9.8, actual      3 (0.31x)
+Testing collisions (high 21-30 bits) - Worst is 27 bits: 179/312 (0.57x)
+Testing collisions (high 12-bit) - Expected     204800.0, actual 200704 (0.98x)
+Testing collisions (high  8-bit) - Expected     204800.0, actual 204544 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected          9.8, actual      8 (0.82x)
+Testing collisions (low  21-30 bits) - Worst is 30 bits: 21/39 (0.54x)
+Testing collisions (low  12-bit) - Expected     204800.0, actual 200704 (0.98x)
+Testing collisions (low   8-bit) - Expected     204800.0, actual 204544 (1.00x) (-256)
+Testing distribution - Worst bias is the 15-bit window at bit 45 - 0.317%
+
+
+[[[ Keyset 'Seed' Tests ]]]
+
+Keyset 'Seed' - 5000000 keys
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       5820.8, actual   2867 (0.49x)
+Testing collisions (high 26-40 bits) - Worst is 40 bits: 14/22 (0.62x)
+Testing collisions (high 12-bit) - Expected    5000000.0, actual 4995904 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    5000000.0, actual 4999744 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       5820.8, actual   2957 (0.51x)
+Testing collisions (low  26-40 bits) - Worst is 40 bits: 12/22 (0.53x)
+Testing collisions (low  12-bit) - Expected    5000000.0, actual 4995904 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    5000000.0, actual 4999744 (1.00x) (-256)
+Testing distribution - Worst bias is the 19-bit window at bit  3 - 0.065%
+
+
+[[[ Keyset 'PerlinNoise' Tests ]]]
+
+Testing 16777216 coordinates (L2) : 
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected      65536.0, actual  32651 (0.50x)
+Testing collisions (high 28-43 bits) - Worst is 43 bits: 18/31 (0.56x)
+Testing collisions (high 12-bit) - Expected   16777216.0, actual 16773120 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected   16777216.0, actual 16776960 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected      65536.0, actual  32486 (0.50x)
+Testing collisions (low  28-43 bits) - Worst is 41 bits: 65/127 (0.51x)
+Testing collisions (low  12-bit) - Expected   16777216.0, actual 16773120 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected   16777216.0, actual 16776960 (1.00x) (-256)
+
+
+[[[ Diff 'Differential' Tests ]]]
+
+Testing 8303632 up-to-5-bit differentials in 64-bit keys -> 64 bit hashes.
+1000 reps, 8303632000 total tests, expecting 0.00 random collisions..........
+0 total collisions, of which 0 single collisions were ignored
+
+Testing 11017632 up-to-4-bit differentials in 128-bit keys -> 64 bit hashes.
+1000 reps, 11017632000 total tests, expecting 0.00 random collisions..........
+0 total collisions, of which 0 single collisions were ignored
+
+Testing 2796416 up-to-3-bit differentials in 256-bit keys -> 64 bit hashes.
+1000 reps, 2796416000 total tests, expecting 0.00 random collisions..........
+0 total collisions, of which 0 single collisions were ignored
+
+
+[[[ DiffDist 'Differential Distribution' Tests ]]]
+
+Testing bit 0
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    528 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 32 bits: 528/1023 (0.52x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    481 (0.47x)
+Testing collisions (low  25-37 bits) - Worst is 27 bits: 16195/32767 (0.49x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 1
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    520 (0.51x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 20/31 (0.63x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    534 (0.52x)
+Testing collisions (low  25-37 bits) - Worst is 34 bits: 147/255 (0.57x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 2
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    486 (0.47x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 22/31 (0.69x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    538 (0.53x)
+Testing collisions (low  25-37 bits) - Worst is 33 bits: 290/511 (0.57x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 3
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    514 (0.50x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 261/511 (0.51x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    526 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 35 bits: 70/127 (0.55x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 4
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    499 (0.49x)
+Testing collisions (high 25-37 bits) - Worst is 34 bits: 134/255 (0.52x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    519 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 17/31 (0.53x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 5
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    530 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 23/31 (0.72x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    510 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 34 bits: 141/255 (0.55x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 6
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    495 (0.48x)
+Testing collisions (high 25-37 bits) - Worst is 26 bits: 32319/65535 (0.49x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    525 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 35 bits: 79/127 (0.62x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 7
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    511 (0.50x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 19/31 (0.59x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    534 (0.52x)
+Testing collisions (low  25-37 bits) - Worst is 33 bits: 273/511 (0.53x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 8
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    535 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 279/511 (0.54x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    485 (0.47x)
+Testing collisions (low  25-37 bits) - Worst is 33 bits: 262/511 (0.51x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 9
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    504 (0.49x)
+Testing collisions (high 25-37 bits) - Worst is 31 bits: 1025/2047 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    530 (0.52x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 22/31 (0.69x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 10
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    576 (0.56x)
+Testing collisions (high 25-37 bits) - Worst is 34 bits: 152/255 (0.59x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    499 (0.49x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 20/31 (0.63x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 11
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    529 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 20/31 (0.63x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    524 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 19/31 (0.59x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 12
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    550 (0.54x)
+Testing collisions (high 25-37 bits) - Worst is 32 bits: 550/1023 (0.54x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    517 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 33 bits: 263/511 (0.51x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 13
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    547 (0.53x)
+Testing collisions (high 25-37 bits) - Worst is 34 bits: 159/255 (0.62x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    524 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 19/31 (0.59x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 14
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    499 (0.49x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 261/511 (0.51x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    520 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 33 bits: 273/511 (0.53x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 15
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    528 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 22/31 (0.69x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    441 (0.43x)
+Testing collisions (low  25-37 bits) - Worst is 28 bits: 8157/16383 (0.50x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 16
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    565 (0.55x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 20/31 (0.63x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    484 (0.47x)
+Testing collisions (low  25-37 bits) - Worst is 36 bits: 35/63 (0.55x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 17
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    537 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 35 bits: 75/127 (0.59x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    509 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 34 bits: 134/255 (0.52x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 18
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    505 (0.49x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 18/31 (0.56x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    514 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 36 bits: 39/63 (0.61x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 19
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    532 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 35 bits: 77/127 (0.60x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    531 (0.52x)
+Testing collisions (low  25-37 bits) - Worst is 32 bits: 531/1023 (0.52x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 20
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    517 (0.50x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 268/511 (0.52x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    527 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 21/31 (0.66x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 21
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    497 (0.49x)
+Testing collisions (high 25-37 bits) - Worst is 29 bits: 4164/8191 (0.51x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    522 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 31 bits: 1068/2047 (0.52x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 22
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    472 (0.46x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 17/31 (0.53x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    492 (0.48x)
+Testing collisions (low  25-37 bits) - Worst is 30 bits: 2053/4095 (0.50x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 23
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    486 (0.47x)
+Testing collisions (high 25-37 bits) - Worst is 29 bits: 4085/8191 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    530 (0.52x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 18/31 (0.56x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 24
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    532 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 277/511 (0.54x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    539 (0.53x)
+Testing collisions (low  25-37 bits) - Worst is 35 bits: 74/127 (0.58x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 25
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    505 (0.49x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 22/31 (0.69x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    540 (0.53x)
+Testing collisions (low  25-37 bits) - Worst is 35 bits: 75/127 (0.59x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 26
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    520 (0.51x)
+Testing collisions (high 25-37 bits) - Worst is 35 bits: 68/127 (0.53x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    508 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 28 bits: 8276/16383 (0.51x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 27
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    511 (0.50x)
+Testing collisions (high 25-37 bits) - Worst is 36 bits: 37/63 (0.58x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    514 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 28 bits: 8258/16383 (0.50x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 28
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    484 (0.47x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 17/31 (0.53x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    531 (0.52x)
+Testing collisions (low  25-37 bits) - Worst is 32 bits: 531/1023 (0.52x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 29
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    532 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 35 bits: 67/127 (0.52x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    537 (0.52x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 20/31 (0.63x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 30
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    497 (0.49x)
+Testing collisions (high 25-37 bits) - Worst is 29 bits: 4158/8191 (0.51x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    527 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 21/31 (0.66x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 31
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    589 (0.58x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 301/511 (0.59x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    498 (0.49x)
+Testing collisions (low  25-37 bits) - Worst is 35 bits: 71/127 (0.55x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 32
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    449 (0.44x)
+Testing collisions (high 25-37 bits) - Worst is 28 bits: 8163/16383 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    513 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 17/31 (0.53x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 33
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    528 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 26/31 (0.81x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    508 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 22/31 (0.69x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 34
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    520 (0.51x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 279/511 (0.54x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    536 (0.52x)
+Testing collisions (low  25-37 bits) - Worst is 34 bits: 139/255 (0.54x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 35
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    512 (0.50x)
+Testing collisions (high 25-37 bits) - Worst is 29 bits: 4145/8191 (0.51x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    505 (0.49x)
+Testing collisions (low  25-37 bits) - Worst is 31 bits: 1055/2047 (0.52x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 36
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    474 (0.46x)
+Testing collisions (high 25-37 bits) - Worst is 27 bits: 16389/32767 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    512 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 20/31 (0.63x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 37
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    493 (0.48x)
+Testing collisions (high 25-37 bits) - Worst is 28 bits: 8226/16383 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    490 (0.48x)
+Testing collisions (low  25-37 bits) - Worst is 30 bits: 2051/4095 (0.50x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 38
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    523 (0.51x)
+Testing collisions (high 25-37 bits) - Worst is 36 bits: 38/63 (0.59x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    513 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 23/31 (0.72x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 39
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    509 (0.50x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 279/511 (0.54x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    472 (0.46x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 20/31 (0.63x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 40
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    512 (0.50x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 267/511 (0.52x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    505 (0.49x)
+Testing collisions (low  25-37 bits) - Worst is 31 bits: 1046/2047 (0.51x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 41
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    526 (0.51x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 20/31 (0.63x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    519 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 36 bits: 40/63 (0.63x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 42
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    491 (0.48x)
+Testing collisions (high 25-37 bits) - Worst is 34 bits: 144/255 (0.56x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    483 (0.47x)
+Testing collisions (low  25-37 bits) - Worst is 35 bits: 69/127 (0.54x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 43
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    505 (0.49x)
+Testing collisions (high 25-37 bits) - Worst is 36 bits: 37/63 (0.58x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    498 (0.49x)
+Testing collisions (low  25-37 bits) - Worst is 30 bits: 2047/4095 (0.50x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 44
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    540 (0.53x)
+Testing collisions (high 25-37 bits) - Worst is 32 bits: 540/1023 (0.53x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    546 (0.53x)
+Testing collisions (low  25-37 bits) - Worst is 32 bits: 546/1023 (0.53x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 45
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    525 (0.51x)
+Testing collisions (high 25-37 bits) - Worst is 35 bits: 80/127 (0.63x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    512 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 22/31 (0.69x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 46
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    504 (0.49x)
+Testing collisions (high 25-37 bits) - Worst is 30 bits: 2108/4095 (0.51x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    475 (0.46x)
+Testing collisions (low  25-37 bits) - Worst is 36 bits: 44/63 (0.69x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 47
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    482 (0.47x)
+Testing collisions (high 25-37 bits) - Worst is 29 bits: 4162/8191 (0.51x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    496 (0.48x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 18/31 (0.56x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 48
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    514 (0.50x)
+Testing collisions (high 25-37 bits) - Worst is 32 bits: 514/1023 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    504 (0.49x)
+Testing collisions (low  25-37 bits) - Worst is 29 bits: 4145/8191 (0.51x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 49
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    526 (0.51x)
+Testing collisions (high 25-37 bits) - Worst is 34 bits: 138/255 (0.54x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    507 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 36 bits: 36/63 (0.56x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 50
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    468 (0.46x)
+Testing collisions (high 25-37 bits) - Worst is 30 bits: 2043/4095 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    540 (0.53x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 24/31 (0.75x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 51
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    550 (0.54x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 283/511 (0.55x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    500 (0.49x)
+Testing collisions (low  25-37 bits) - Worst is 36 bits: 34/63 (0.53x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 52
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    494 (0.48x)
+Testing collisions (high 25-37 bits) - Worst is 33 bits: 265/511 (0.52x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    500 (0.49x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 22/31 (0.69x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 53
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    539 (0.53x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 23/31 (0.72x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    497 (0.49x)
+Testing collisions (low  25-37 bits) - Worst is 34 bits: 128/255 (0.50x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 54
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    483 (0.47x)
+Testing collisions (high 25-37 bits) - Worst is 36 bits: 35/63 (0.55x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    521 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 32 bits: 521/1023 (0.51x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 55
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    470 (0.46x)
+Testing collisions (high 25-37 bits) - Worst is 28 bits: 8204/16383 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    526 (0.51x)
+Testing collisions (low  25-37 bits) - Worst is 35 bits: 73/127 (0.57x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 56
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    543 (0.53x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 18/31 (0.56x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    535 (0.52x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 19/31 (0.59x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 57
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    484 (0.47x)
+Testing collisions (high 25-37 bits) - Worst is 27 bits: 16383/32767 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    517 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 31 bits: 1038/2047 (0.51x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 58
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    506 (0.49x)
+Testing collisions (high 25-37 bits) - Worst is 30 bits: 2065/4095 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    483 (0.47x)
+Testing collisions (low  25-37 bits) - Worst is 27 bits: 16495/32767 (0.50x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 59
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    491 (0.48x)
+Testing collisions (high 25-37 bits) - Worst is 27 bits: 16335/32767 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    545 (0.53x)
+Testing collisions (low  25-37 bits) - Worst is 35 bits: 71/127 (0.55x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 60
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    532 (0.52x)
+Testing collisions (high 25-37 bits) - Worst is 32 bits: 532/1023 (0.52x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    502 (0.49x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 17/31 (0.53x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 61
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    547 (0.53x)
+Testing collisions (high 25-37 bits) - Worst is 36 bits: 40/63 (0.63x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    545 (0.53x)
+Testing collisions (low  25-37 bits) - Worst is 36 bits: 44/63 (0.69x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 62
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    484 (0.47x)
+Testing collisions (high 25-37 bits) - Worst is 28 bits: 8232/16383 (0.50x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    488 (0.48x)
+Testing collisions (low  25-37 bits) - Worst is 36 bits: 42/63 (0.66x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+Testing bit 63
+Testing collisions ( 64-bit) - Expected    0.0, actual      0 (0.00x)
+Testing collisions (high 32-bit) - Expected       1024.0, actual    525 (0.51x)
+Testing collisions (high 25-37 bits) - Worst is 37 bits: 22/31 (0.69x)
+Testing collisions (high 12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (high  8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+Testing collisions (low  32-bit) - Expected       1024.0, actual    511 (0.50x)
+Testing collisions (low  25-37 bits) - Worst is 37 bits: 18/31 (0.56x)
+Testing collisions (low  12-bit) - Expected    2097152.0, actual 2093056 (1.00x) (-4096)
+Testing collisions (low   8-bit) - Expected    2097152.0, actual 2096896 (1.00x) (-256)
+
+
+[[[ MomentChi2 Tests ]]]
+
+Analyze hashes produced from a serie of linearly increasing numbers of 32-bit, using a step of 3 ... 
+Target values to approximate : 38918200.000000 - 410450.000000 
+Popcount 1 stats : 38919061.861156 - 410466.355500
+Popcount 0 stats : 38919231.131045 - 410507.247471
+MomentChi2 for bits 1 :  0.904848 
+MomentChi2 for bits 0 :   1.29511 
+
+Derivative stats (transition from 2 consecutive values) : 
+Popcount 1 stats : 38917694.479258 - 410430.433019
+Popcount 0 stats : 38920106.401216 - 410487.763517
+MomentChi2 for deriv b1 :  0.311314 
+MomentChi2 for deriv b0 :   4.42709 
+
+  Great !! 
+
+
+
+Input vcode 0x00000001, Output vcode 0x00000001, Result vcode 0x00000001
+Verification value is 0x00000001 - Testing took -1709.305473 seconds
+-------------------------------------------------------------------------------
diff --git a/doc/table.html b/doc/table.html
index e7003d8c..1f9a8560 100644
--- a/doc/table.html
+++ b/doc/table.html
@@ -869,6 +869,14 @@ <h1 id="smhasher">SMhasher</h1>
 <td align="left"></td>
 </tr>
 <tr class="good">
+<td align="left"><a href="prvhash.txt">prvhash</a></td>
+<td align="right">393.21</td>
+<td align="right">142.03</td>
+<td align="right">532.15 (125)</td>
+<td align="right">157</td>
+<td align="left"></td>
+</tr>
+<tr class="good">
 <td align="left"><a href="chaskey.txt">chaskey</a></td>
 <td align="right">735.85</td>
 <td align="right">168.05</td>
diff --git a/main.cpp b/main.cpp
index d2ddaf77..e1ca8f1e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -277,6 +277,9 @@ HashInfo g_hashes[] =
   // different verif on gcc vs clang
   { floppsyhash_64,       64, 0x0,        "floppsyhash", "slow hash designed for floating point hardware", GOOD },
   { chaskey_test,         64, 0x81A90131, "chaskey",     "mouha.be/chaskey/ with added seed support", GOOD },
+#ifdef HAVE_INT64
+  { prvhash_test,         64, 0x84468B63, "prvhash",     "github.com/avaneev/prvhash ", GOOD },
+#endif
   { siphash_test,         64, 0xC58D7F9C, "SipHash",     "SipHash 2-4 - SSSE3 optimized", GOOD },
   { halfsiphash_test,     32, 0xA7A05F72, "HalfSipHash", "HalfSipHash 2-4, 32bit", GOOD },
   { GoodOAAT_test,        32, 0x7B14EEE5, "GoodOAAT",    "Small non-multiplicative OAAT", GOOD },
diff --git a/prvhash42.h b/prvhash42.h
new file mode 100644
index 00000000..3a5253c6
--- /dev/null
+++ b/prvhash42.h
@@ -0,0 +1,105 @@
+/**
+ * @file prvhash42.h
+ *
+ * @brief The inclusion file for the "prvhash42" hash function.
+ *
+ * @mainpage
+ *
+ * @section intro_sec Introduction
+ *
+ * Description is available at https://github.com/avaneev/prvhash
+ *
+ * @section license License
+ *
+ * Copyright (c) 2020 Aleksey Vaneev
+ *
+ * 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.
+ *
+ * @version 2.0
+ */
+
+//$ nocpp
+
+#ifndef PRVHASH42_INCLUDED
+#define PRVHASH42_INCLUDED
+
+#include <stdint.h>
+#include <string.h>
+
+/**
+ * PRVHASH hash function (64-bit with 32-bit hash word). Produces hash of the
+ * specified Message.
+ *
+ * @param Message Message to produce hash from.
+ * @param MessageLen Message length, in bytes.
+ * @param[out] Hash The resulting hash.
+ * @param HashLen The required hash length, in bytes, should be >= 4, in
+ * increments of 4.
+ * @param SeedXOR Optional value, to XOR the default seed with. To use the
+ * default seed, set to 0.
+ * @param InitLCG For development purposes, should be set to 0. If != 0, "lcg"
+ * value to use.
+ * @param InitSeed For development purposes, should be set to 0. If != 0,
+ * "Seed" value to use.
+ */
+
+inline void prvhash42( const uint8_t* const Message, const int MessageLen,
+	uint8_t* const Hash, const int HashLen, const uint64_t SeedXOR,
+	const uint64_t InitLCG, const uint64_t InitSeed )
+{
+	// Initialize the hash.
+
+	memset( Hash, 0, HashLen );
+
+	uint64_t lcg = ( InitLCG == 0 ? 15267459991392010589ULL : InitLCG );
+		// Multiplier inspired by LCG. This is not a prime number. It is a
+		// random sequence of bits. This value can be regenerated at will,
+		// possibly using various statistical search methods. The best
+		// strategies: 1) Compose both this and seed numbers of 8-bit values
+		// that have 4 random bits set; 2) Compose the 64-bit value that has
+		// 32 random bits set; same for seed. An important consideration here
+		// is to pass the 16-bit Sparse test.
+
+	uint64_t Seed = ( InitSeed == 0 ? 7928988912013905173ULL : InitSeed );
+		// Generated similarly to "lcg".
+
+	Seed ^= SeedXOR;
+	int k;
+
+	for( k = 0; k < MessageLen; k++ )
+	{
+		const uint64_t m = Message[ k ];
+
+		Seed ^= m;
+		int i;
+
+		for( i = 0; i < HashLen; i += 4 )
+		{
+			Seed *= lcg;
+			uint32_t* const hc = (uint32_t*) &Hash[ i ];
+			const uint64_t ph = *hc;
+			*hc ^= (uint32_t) ( Seed >> 32 );
+			Seed ^= ph ^ m;
+		}
+
+		lcg += Seed;
+	}
+}
+
+#endif // PRVHASH42_INCLUDED