FNV-1a Hash (http://isthe.com/chongo/tech/comp/fnv/) in C++.

fnv32a.cpp

typedef unsigned int uint32;

#define FNV1_32A_INIT 0x811c9dc5
#define FNV_32_PRIME 0x01000193

uint32 fnv32a( const char* str )
{
    uint32 hval = FNV1_32A_INIT;

    while ( *str )
    {
        hval ^= (uint32)*str++;
        hval *= FNV_32_PRIME;
    }

    return hval;
}