SmartEnum.hh

/*
 * SmartEnum.hh
 *
 *  Created on: Jun 27, 2014
 *      Author: behrens
 */

#ifndef SMARTENUM_HH_
#define SMARTENUM_HH_

class SmartEnumBase {};

#define DECLARE_ENUM_CLASS(ClassName, ...)                                     \
  class ClassName : public SmartEnumBase {                                     \
  public:                                                                      \
    enum Value { __VA_ARGS__ } value;                                          \
    const std::string &toString() { return toString(value); }                  \
    static const std::string &toString(Value &v) { return getMap()[v]; }       \
                                                                               \
  private:                                                                     \
    static std::map<Value, std::string> &getMap() {                            \
      static const std::string str[] = {#__VA_ARGS__};                         \
      static const Value val[] = {__VA_ARGS__};                                \
      static std::map<Value, std::string> map;                                 \
      if (map.empty())                                                         \
        for (int i = 0; i < sizeof(val) / sizeof(Value); i++)                  \
          map[val[i]] = str[i];                                                \
      return map;                                                              \
    }                                                                          \
  };

#endif /* SMARTENUM_HH_ */