hasher.h

#include <string>

namespace faster{
    template <typename K>
    class hasher{
        private:
            int _spectrum;
        public:
            hasher(int spectrum){
                _spectrum = spectrum;
            }
            int get ( K key ){
                return key % _spectrum;
                //return ( key >> 6 ) % _spectrum;
            }

    };
    template <>
    class hasher<float>{
        private:
            int _spectrum;
        public:
            hasher(int spectrum){
                _spectrum = spectrum;
            }
            int get ( float key ){
                return ((int) key) % _spectrum;
            }

    };
    template <>
    class hasher<double>{
        private:
            int _spectrum;
        public:
            hasher(int spectrum){
                _spectrum = spectrum;
            }
            int get ( double key ){
                return ((long long) key) % _spectrum;
            }

    };
    template <>
    class hasher<std::string>{
        private:
            int _spectrum;
        public:
            hasher(int spectrum){
                _spectrum = spectrum;
            }
            int get ( std::string key ){
                return ( key[0] ) % _spectrum;
            }

    };
}