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Editing: enumset.h
// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html /* ****************************************************************************** * * Copyright (C) 2012,2014 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 /* Can't use #ifndef U_HIDE_INTERNAL_API for the entire EnumSet class, needed in .h file declarations */ /** * enum bitset for boolean fields. Similar to Java EnumSet<>. * Needs to range check. Used for private instance variables. * @internal * \cond */ 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() {} #ifndef U_HIDE_INTERNAL_API 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; } #endif /* U_HIDE_INTERNAL_API */ private: inline uint32_t flag(T toCheck) const { return (1<<(toCheck-minValue)); } private: uint32_t fBools; }; /** \endcond */ U_NAMESPACE_END #endif /* U_SHOW_CPLUSPLUS_API */ #endif /* ENUMSET_H */
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