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main.c (1122B)
1 #! /usr/bin/env sheepy
2 /* or direct path to sheepy: #! /usr/local/bin/sheepy */
3
4 #include "libsheepyObject.h"
5 #include "hashfunctions.h"
6
7 int argc; char **argv;
8
9 int main(int ARGC, char** ARGV) {
10
11 argc = ARGC; argv = ARGV;
12
13 initLibsheepy(argv[0]);
14 setLogMode(LOG_PROG);
15
16
17 // siphash seed setup
18
19 u8 hash_function_seed[16];
20 setSoftwareRandom();
21 range(i, COUNT_ELEMENTS(hash_function_seed)) {
22 hash_function_seed[i] = randomChoice(256);
23 }
24
25 // compute some hash
26 //
27 logVarG(u32Hash(3));
28 logVarG(u64Hash(3));
29
30 // 32bit string hash
31 logVarG(strHashFNV1A("the key"));
32
33 // 64bit string hash
34 logVarG(strHashFNV1A64("the key"));
35
36 // siphash
37
38 logVarG(siphash("the key",strlen("the key"),hash_function_seed));
39
40 // murmur2
41
42 logVarG(murmur2hash("the key", strlen("the key")));
43
44 // murmur3
45
46 u32 seed = 2506631878;
47 u64 hash[2];
48 murmurHash3_x64_128("the key", strlen("the key"), seed, hash);
49 logI("murmurHash3_x64_128: %lu %lu", hash[0], hash[1]);
50
51 // jump consistent hash
52 i32 jumpHash = jumpConsistentHash(10863919174838991 /* key */, 11 /* bucket count */);
53
54 logVarG(jumpHash);
55 }