ICU 59.1  59.1
enumset.h
Go to the documentation of this file.
1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 ******************************************************************************
5 *
6 * Copyright (C) 2012,2014 International Business Machines
7 * Corporation and others. All Rights Reserved.
8 *
9 ******************************************************************************
10 */
11 
17 #ifndef ENUMSET_H
18 #define ENUMSET_H
19 
20 #include "unicode/utypes.h"
21 
22 #if U_SHOW_CPLUSPLUS_API
23 
25 
26 /* Can't use #ifndef U_HIDE_INTERNAL_API for the entire EnumSet class, needed in .h file declarations */
32 template<typename T, uint32_t minValue, uint32_t limitValue>
33 class EnumSet {
34 public:
35  inline EnumSet() : fBools(0) {}
36  inline EnumSet(const EnumSet<T,minValue,limitValue>& other) : fBools(other.fBools) {}
37  inline ~EnumSet() {}
38 #ifndef U_HIDE_INTERNAL_API
39  inline void clear() { fBools=0; }
40  inline void add(T toAdd) { set(toAdd, 1); }
41  inline void remove(T toRemove) { set(toRemove, 0); }
42  inline int32_t contains(T toCheck) const { return get(toCheck); }
43  inline void set(T toSet, int32_t v) { fBools=(fBools&(~flag(toSet)))|(v?(flag(toSet)):0); }
44  inline int32_t get(T toCheck) const { return (fBools & flag(toCheck))?1:0; }
45  inline UBool isValidEnum(T toCheck) const { return (toCheck>=minValue&&toCheck<limitValue); }
46  inline UBool isValidValue(int32_t v) const { return (v==0||v==1); }
47  inline const EnumSet<T,minValue,limitValue>& operator=(const EnumSet<T,minValue,limitValue>& other) {
48  fBools = other.fBools;
49  return *this;
50  }
51 
52  inline uint32_t getAll() const {
53  return fBools;
54  }
55 #endif /* U_HIDE_INTERNAL_API */
56 
57 private:
58  inline uint32_t flag(T toCheck) const { return (1<<(toCheck-minValue)); }
59 private:
60  uint32_t fBools;
61 };
62 
64 
65 #endif /* U_SHOW_CPLUSPLUS_API */
66 #endif /* ENUMSET_H */
enum bitset for boolean fields.
Definition: enumset.h:33
#define U_NAMESPACE_BEGIN
This is used to begin a declaration of a public ICU C++ API.
Definition: uversion.h:131
#define U_NAMESPACE_END
This is used to end a declaration of a public ICU C++ API.
Definition: uversion.h:132
Basic definitions for ICU, for both C and C++ APIs.
int8_t UBool
The ICU boolean type.
Definition: umachine.h:236