The Tor Browser: intl/icu/source/common/unicode/enumset.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /*

     2 ******************************************************************************

3 *

     4 *   Copyright (C) 2012, International Business Machines

     5 *   Corporation and others.  All Rights Reserved.

6 *

     7 ******************************************************************************

     8 */

    10 /**

    11  * \file

    12  * \brief C++: internal template EnumSet<>

    13  */

    15 #ifndef ENUMSET_H

    16 #define ENUMSET_H

    18 #include "unicode/utypes.h"

    20 #if U_SHOW_CPLUSPLUS_API

    22 U_NAMESPACE_BEGIN

    24 /**

    25  * enum bitset for boolean fields. Similar to Java EnumSet<>.

    26  * Needs to range check.

    27  * @internal

    28  */

    29 template<typename T, uint32_t minValue, uint32_t limitValue>

    30 class EnumSet {

    31 public:

    32     inline EnumSet() : fBools(0) {}

    33     inline EnumSet(const EnumSet<T,minValue,limitValue>& other) : fBools(other.fBools) {}

    34     inline ~EnumSet() {}

    35     inline void clear() { fBools=0; }

    36     inline void add(T toAdd) { set(toAdd, 1); }

    37     inline void remove(T toRemove) { set(toRemove, 0); }

    38     inline int32_t contains(T toCheck) const { return get(toCheck); }

    39     inline void set(T toSet, int32_t v) { fBools=(fBools&(~flag(toSet)))|(v?(flag(toSet)):0); }

    40     inline int32_t get(T toCheck) const { return (fBools & flag(toCheck))?1:0; }

    41     inline UBool isValidEnum(T toCheck) const {  return (toCheck>=minValue&&toCheck<limitValue); }

    42     inline UBool isValidValue(int32_t v) const { return (v==0||v==1); }

    43     inline const EnumSet<T,minValue,limitValue>& operator=(const EnumSet<T,minValue,limitValue>& other) {

    44         fBools = other.fBools;

    45         return *this;

    46     }

    48     inline uint32_t getAll() const {

    49         return fBools;

    50     }

    52 private:

    53     inline uint32_t flag(T toCheck) const { return (1<<(toCheck-minValue)); }

    54 private:

    55     uint32_t fBools;

    56 };

    58 U_NAMESPACE_END

    60 #endif /* U_SHOW_CPLUSPLUS_API */

    61 #endif /* ENUMSET_H */

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