Name Color Generator

#include <bits/stdc++.h>
#include <regex>
#include <cmath>

using namespace std;

class ColorName {

    private:

        const string skip   = "^(?:anonymous|анонимус)$";
        int   color_mask    = 0;
        char  hex_chars[17] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};

    public:

        string from(string name) {

            if (regex_match(name, regex(skip))) {
                return "transparent";
            }
            const int length = name.length();
            char name_charCodeAt[length];

            strcpy(name_charCodeAt, name.c_str());
            double mask = color_mask % 0x1f4b;

            stringstream output;
            output << "#";

            for (int i = 0; i < 6; i++) {

                for (int c = 0; c < length; c++) {
                    double b = 0.02519603282416938 * (mask + name_charCodeAt[c]),
                           a = (b - (uint)b) * (uint)b;
                        mask = (uint)a + ( a - (uint)a) * 0x100000000;
                }
                output << hex_chars[ (uint)((uint)mask * 2.3283064365386963e-10 * 16) ];
            }

            return output.str();
        }

        ColorName(string seed) {

            const int length = seed.length();
            char seed_charCodeAt[length];

            strcpy(seed_charCodeAt, seed.c_str());
            color_mask = 0x4872d1e6;

            for (int i = 0; i < length; i++) {
                color_mask = (color_mask << 1) + seed_charCodeAt[i];
            }
            color_mask = abs(color_mask);
        }
};

int main (int argc, char** argv) {
    ColorName color("ЧgЖ0CгтWйwРstлХИyхoязХи9МymЫzLмz");

    for (int i = 1; i < argc; i++) {
        cout << color.from(argv[i]) << " generate from `\033[1;41m" << argv[i] << "\033[0m`\n";
    }
    return 0;
}