/* | |
****************************************************************************** | |
* | |
* Copyright (C) 2012, International Business Machines | |
* Corporation and others. All Rights Reserved. | |
* | |
****************************************************************************** | |
*/ | |
/** | |
* \file | |
* \brief C++: internal template EnumSet<> | |
*/ | |
#ifndef ENUMSET_H | |
#define ENUMSET_H | |
#include "unicode/utypes.h" | |
#if U_SHOW_CPLUSPLUS_API | |
U_NAMESPACE_BEGIN | |
/** | |
* enum bitset for boolean fields. Similar to Java EnumSet<>. | |
* Needs to range check. | |
* @internal | |
*/ | |
template<typename T, uint32_t minValue, uint32_t limitValue> | |
class EnumSet { | |
public: | |
inline EnumSet() : fBools(0) {} | |
inline EnumSet(const EnumSet<T,minValue,limitValue>& other) : fBools(other.fBools) {} | |
inline ~EnumSet() {} | |
inline void clear() { fBools=0; } | |
inline void add(T toAdd) { set(toAdd, 1); } | |
inline void remove(T toRemove) { set(toRemove, 0); } | |
inline int32_t contains(T toCheck) const { return get(toCheck); } | |
inline void set(T toSet, int32_t v) { fBools=(fBools&(~flag(toSet)))|(v?(flag(toSet)):0); } | |
inline int32_t get(T toCheck) const { return (fBools & flag(toCheck))?1:0; } | |
inline UBool isValidEnum(T toCheck) const { return (toCheck>=minValue&&toCheck<limitValue); } | |
inline UBool isValidValue(int32_t v) const { return (v==0||v==1); } | |
inline const EnumSet<T,minValue,limitValue>& operator=(const EnumSet<T,minValue,limitValue>& other) { | |
fBools = other.fBools; | |
return *this; | |
} | |
inline uint32_t getAll() const { | |
return fBools; | |
} | |
private: | |
inline uint32_t flag(T toCheck) const { return (1<<(toCheck-minValue)); } | |
private: | |
uint32_t fBools; | |
}; | |
U_NAMESPACE_END | |
#endif /* U_SHOW_CPLUSPLUS_API */ | |
#endif /* ENUMSET_H */ |