projects / apple / icu.git / blame
| Commit | Line | Data |
|---|---|---|
| 51004dcb A |
1 | /* |
| 2 | ****************************************************************************** | |
| 3 | * | |
| 57a6839d | 4 | * Copyright (C) 2012,2014 International Business Machines |
| 51004dcb A |
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 | ||
| 57a6839d | 24 | /* Can't use #ifndef U_HIDE_INTERNAL_API for the entire EnumSet class, needed in .h file declarations */ |
| 51004dcb A |
25 | /** |
| 26 | * enum bitset for boolean fields. Similar to Java EnumSet<>. | |
| 57a6839d | 27 | * Needs to range check. Used for private instance variables. |
| 51004dcb A |
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() {} | |
| 57a6839d | 36 | #ifndef U_HIDE_INTERNAL_API |
| 51004dcb A |
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 | } | |
| 57a6839d | 53 | #endif /* U_HIDE_INTERNAL_API */ |
| 51004dcb A |
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 */ |