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| author | Yann Collet <yann.collet.73@gmail.com> | 2014-04-28 22:49:31 (GMT) |
|---|---|---|
| committer | Yann Collet <yann.collet.73@gmail.com> | 2014-04-28 22:49:31 (GMT) |
| commit | ff0db1dfb9941fac2087191cc32446eb39ab16e1 (patch) | |
| tree | 05a05b3ac2c8be38506587bfc435efdd91db2c6c /programs | |
| parent | b4e85853c644b05762687d8bec2396a8b9122bf5 (diff) | |
| download | lz4-ff0db1dfb9941fac2087191cc32446eb39ab16e1.zip lz4-ff0db1dfb9941fac2087191cc32446eb39ab16e1.tar.gz lz4-ff0db1dfb9941fac2087191cc32446eb39ab16e1.tar.bz2 | |
modified : rand generator
Diffstat (limited to 'programs')
| -rw-r--r-- | programs/fuzzer.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/programs/fuzzer.c b/programs/fuzzer.c index 55b3bb5..9b17209 100644 --- a/programs/fuzzer.c +++ b/programs/fuzzer.c @@ -105,10 +105,15 @@ static int FUZ_GetMilliSpan( int nTimeStart ) } +# define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r))) unsigned int FUZ_rand(unsigned int* src) { - *src = XXH32(&src, sizeof(src), 0); - return *src; + U32 rand32 = *src; + rand32 *= PRIME1; + rand32 += PRIME2; + rand32 = FUZ_rotl32(rand32, 13); + *src = rand32; + return rand32; } |