Whereas...
- Google's
cityhashis pretty awesome - Sometimes you want to use
cityhashwithout C++ifying your project city.h(not justcity.cc) requires C++, so including it as a static library won't help
This trivial project defines two wrapper functions
extern "C" void ccity_hash128(uint8_t *data, uint32_t size, uint64_t *pair) {
uint128 hash128 = CityHash128((const char *)data, size);
pair[0] = Uint128Low64(hash128);
pair[1] = Uint128High64(hash128);
}
extern "C" uint64_t ccity_hash128_64(uint8_t *data, uint32_t size) {
uint128 hash128 = CityHash128((const char *)data, size);
return Hash128to64(hash128);
}and a build script
bash build.sh
so that you can easily use ccity.{h,a} in your project without letting the C++ infection spread.
- cityhash: permissive (cityhash/cityhash-license.txt)
- this C wrapper: permissive (LICENSE.txt)