1 /* 2 ****************************************************************************** 3 * 4 * Copyright (C) 2012, International Business Machines 5 * Corporation and others. All Rights Reserved. 6 * 7 ****************************************************************************** 8 */ 9 10 /** 11 * \file 12 * \brief C++: internal template EnumSet<> 13 */ 14 15 #ifndef ENUMSET_H 16 #define ENUMSET_H 17 18 #include "unicode/utypes.h" 19 20 #if U_SHOW_CPLUSPLUS_API 21 22 U_NAMESPACE_BEGIN 23 24 /** 25 * enum bitset for boolean fields. Similar to Java EnumSet<>. 26 * Needs to range check. 27 * @internal 28 */ 29 template<typename T, uint32_t minValue, uint32_t limitValue> 30 class EnumSet { 31 public: 32 inline EnumSet() : fBools(0) {} 33 inline EnumSet(const EnumSet<T,minValue,limitValue>& other) : fBools(other.fBools) {} 34 inline ~EnumSet() {} 35 inline void clear() { fBools=0; } 36 inline void add(T toAdd) { set(toAdd, 1); } 37 inline void remove(T toRemove) { set(toRemove, 0); } 38 inline int32_t contains(T toCheck) const { return get(toCheck); } 39 inline void set(T toSet, int32_t v) { fBools=(fBools&(~flag(toSet)))|(v?(flag(toSet)):0); } 40 inline int32_t get(T toCheck) const { return (fBools & flag(toCheck))?1:0; } 41 inline UBool isValidEnum(T toCheck) const { return (toCheck>=minValue&&toCheck<limitValue); } 42 inline UBool isValidValue(int32_t v) const { return (v==0||v==1); } 43 inline const EnumSet<T,minValue,limitValue>& operator=(const EnumSet<T,minValue,limitValue>& other) { 44 fBools = other.fBools; 45 return *this; 46 } 47 48 inline uint32_t getAll() const { 49 return fBools; 50 } 51 52 private: 53 inline uint32_t flag(T toCheck) const { return (1<<(toCheck-minValue)); } 54 private: 55 uint32_t fBools; 56 }; 57 58 U_NAMESPACE_END 59 60 #endif /* U_SHOW_CPLUSPLUS_API */ 61 #endif /* ENUMSET_H */ 62
