00001 #ifndef BDSTypeSafeEnum_h 00002 #define BDSTypeSafeEnum_h 00003 00004 #include <ostream> 00005 00023 template<typename def, typename inner = typename def::type> 00024 class BDSTypeSafeEnum : public def 00025 { 00026 typedef inner type; 00027 inner val; 00028 00029 public: 00030 00031 BDSTypeSafeEnum() : val() {} 00032 BDSTypeSafeEnum(type v) : val(v) {} 00034 type underlying() const { return val; } 00035 00037 friend bool operator == (const BDSTypeSafeEnum & lhs, const BDSTypeSafeEnum & rhs) { return lhs.val == rhs.val; } 00038 friend bool operator != (const BDSTypeSafeEnum & lhs, const BDSTypeSafeEnum & rhs) { return lhs.val != rhs.val; } 00039 friend bool operator < (const BDSTypeSafeEnum & lhs, const BDSTypeSafeEnum & rhs) { return lhs.val < rhs.val; } 00040 friend bool operator <= (const BDSTypeSafeEnum & lhs, const BDSTypeSafeEnum & rhs) { return lhs.val <= rhs.val; } 00041 friend bool operator > (const BDSTypeSafeEnum & lhs, const BDSTypeSafeEnum & rhs) { return lhs.val > rhs.val; } 00042 friend bool operator >= (const BDSTypeSafeEnum & lhs, const BDSTypeSafeEnum & rhs) { return lhs.val >= rhs.val; } 00043 friend std::ostream& operator<< (std::ostream &out, const BDSTypeSafeEnum& a) {out << a.underlying(); return out;} 00045 }; 00046 00047 #endif
1.4.7