medlefsen / constexpr_cityhash

Google CityHash algorithm converted to C++11 constexpr functions so it can be called at compile time.

constexpr_cityhash

Google CityHash algorithm converted to C++11 constexpr functions so it can be called at compile time.

Currently supports only CityHash64 with strings up to 64 characters. Also provides a one argument version of CityHash64 that can take string literals: CityHash64("Hi")

Synopsis

#include "constexpr_cityhash.hpp"
#include <iostream>

using constexpr_cityhash::CityHash64;

template< uint64_t I >
struct id
{
  static const uint64_t value = I;
};

int main(int argc, char* argv[])
{
  id<CityHash64("Hello World")> i;
  std::cout << i.value << "\n";
}