Question

can someone please tell me what i’m doing wrong? i’m trying to hash a value with murmurhash, but i get different values every time:

std::string str = "some test string";
char out[32];

MurmurHash3_x86_32(str.c_str(), str.length(), 0, out);
unsigned int hash = reinterpret_cast<unsigned int>(out);

Answer 1

It looks to me like MurmurHash3_x86_32 is returning a 32 bits hash value. But you’re giving it a 32 bytes output parameter.

You could simply:

std::string str = "some test string";

unsigned int hash;
MurmurHash3_x86_32(str.c_str(), str.length(), 0, &hash);