CStrMap.h

#ifndef __H_CSTRMAP
#define __H_CSTRMAP

#include <cstring>
#include <unordered_map>

struct hash_c_string {
    void hash_combine(size_t &seed, const char &v) const {
        seed ^= v + 0x9e3779b9 + (seed << 6) + (seed >> 2);
    }

    std::size_t operator()(char const *p) const {
        size_t hash = 0;
        for (; *p; ++p) {
            hash_combine(hash, *p);
        }
        return hash;
    }
};

struct comp_c_string {
    bool operator()(char const *p1, char const *p2) const {
        return strcmp(p1, p2) == 0;
    }
};

template <typename T>
class CStrMap : public std::unordered_map<const char *, T, hash_c_string, comp_c_string> {
};

#endif