NAME

       libmurmurhash - non-cryptographic hash functions

SYNOPSIS

       #include <murmurhash.h>

       void lmmh_x86_32(const void *addr, unsigned int len, uint32_t seed, uint32_t out[1]);
       void lmmh_x86_128(const void *addr, unsigned int len, uint32_t seed, uint32_t out[4]);
       void lmmh_x64_128(const void *addr, unsigned int len, uint32_t seed, uint64_t out[2]);

   Deprecated API
       void MurmurHash3_x86_32(const void *data, int len, uint32_t seed, void *out);
       void MurmurHash3_x86_128(const void *data, int len, uint32_t seed, void *out);
       void MurmurHash3_x64_128(const void *data, int len, uint32_t seed, void *out);

DESCRIPTION

       LibMurmurHash  provides  the  three  variants of MurmurHash3 from the original source. The
       first parameter addr specifies the beginning of the data  to  be  hashed  in  memory.  The
       second  parameter len gives the number of bytes to be hashed. The third parameter seed can
       be used to compute an alternative hash on the same data. Pass the location of the hash via
       the out parameter.

EXAMPLE

       Compute the hash of length bytes starting from data and print the 32-bit sized hash value.

           uint32_t hash;
           lmmh_x86_32(data, length, 0, &hash);
           printf("%" PRIx32 "", hash);

       Do the same, but with a wider hash.

           uint64_t widehash[2];
           lmmh_x64_128(data, length, 0, widehash);
           printf("%" PRIx64 "%" PRIx64 "", widehash[0], widehash[1]);

AUTHORS

       MurmurHash was created by Austin Appleby. PMurHash was written by Shane Day. Fabian Klötzl
       created libmurmurhash. All code is dedicated to the public domain.

BUGS

       The old API is problematic in that a negative length  remains  unchecked  and  the  output
       parameter has very specific alignment requirements. Furthermore, the order of bytes in the
       hash may differ across architectures.

   Reporting Bugs
       Please file a bug on GitHub <github.com/kloetzl/libmurmurhash> or send me a mail  <fabian-
       libmurmurhash@kloetzl.info>.