| | 1 | /* |
| | 2 | ****************************************************************************** |
| | 3 | * |
| | 4 | * Copyright (C) 2012,2014 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 | /* Can't use #ifndef U_HIDE_INTERNAL_API for the entire EnumSet class, needed in .h file declarations */ |
| | 25 | /** |
| | 26 | * enum bitset for boolean fields. Similar to Java EnumSet<>. |
| | 27 | * Needs to range check. Used for private instance variables. |
| | 28 | * @internal |
| | 29 | */ |
| | 30 | template<typename T, uint32_t minValue, uint32_t limitValue> |
| | 31 | class EnumSet { |
| | 32 | public: |
| | 33 | inline EnumSet() : fBools(0) {} |
| | 34 | inline EnumSet(const EnumSet<T,minValue,limitValue>& other) : fBools(other.fBools) {} |
| | 35 | inline ~EnumSet() {} |
| | 36 | #ifndef U_HIDE_INTERNAL_API |
| | 37 | inline void clear() { fBools=0; } |
| | 38 | inline void add(T toAdd) { set(toAdd, 1); } |
| | 39 | inline void remove(T toRemove) { set(toRemove, 0); } |
| | 40 | inline int32_t contains(T toCheck) const { return get(toCheck); } |
| | 41 | inline void set(T toSet, int32_t v) { fBools=(fBools&(~flag(toSet)))|(v?(flag(toSet)):0); } |
| | 42 | inline int32_t get(T toCheck) const { return (fBools & flag(toCheck))?1:0; } |
| | 43 | inline UBool isValidEnum(T toCheck) const { return (toCheck>=minValue&&toCheck<limitValue); } |
| | 44 | inline UBool isValidValue(int32_t v) const { return (v==0||v==1); } |
| | 45 | inline const EnumSet<T,minValue,limitValue>& operator=(const EnumSet<T,minValue,limitValue>& other) { |
| | 46 | fBools = other.fBools; |
| | 47 | return *this; |
| | 48 | } |
| | 49 | |
| | 50 | inline uint32_t getAll() const { |
| | 51 | return fBools; |
| | 52 | } |
| | 53 | #endif /* U_HIDE_INTERNAL_API */ |
| | 54 | |
| | 55 | private: |
| | 56 | inline uint32_t flag(T toCheck) const { return (1<<(toCheck-minValue)); } |
| | 57 | private: |
| | 58 | uint32_t fBools; |
| | 59 | }; |
| | 60 | |
| | 61 | U_NAMESPACE_END |
| | 62 | |
| | 63 | #endif /* U_SHOW_CPLUSPLUS_API */ |
| | 64 | #endif /* ENUMSET_H */ |
projects / apple / icu.git / blame_incremental