Serialization

struct bin{
    vector<int> modify_string;
    map<string, int> encryption;
    void set_up_code(){
        string alphabet[] = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
        int letter_num=1;
        for(int i = 0; i < 27; ++i){
            string letter = alphabet[i];
            encryption.insert(pair<string,int>(letter,letter_num));
            letter_num++;
        }
    }
    void encrypt(string& crypt){
        for(unsigned int i = 0; i < crypt.size(); ++i){
            stringstream ssl;
            string letter;
            char let = crypt[i];
            ssl << let;
            ssl >> letter;
            int num = encryption[letter];
            modify_string.push_back(num);
        }
    }
    void decrypt(vector<int>& uncrypt){
        map<string, int>::iterator it;
        for(unsigned int i = 0; i < uncrypt.size(); ++i){
            int number = uncrypt[i];
            for(it = encryption.begin(); it != encryption.end(); ++it){
                if(it->second == number){
                    cout << it->first;
                    break;
                }
            }
        }
    }
}binary;

binary.set_up_code();
character.race_class = "human_orc";
binary.encrypt(character.race_class);
binary.decrypt(binary.modify_string);