icuSources/i18n/significantdigitinterval.h

   1 /*
   2 *******************************************************************************
   3 * Copyright (C) 2015, International Business Machines
   4 * Corporation and others.  All Rights Reserved.
   5 *******************************************************************************
   6 * significantdigitinterval.h
   7 *
   8 * created on: 2015jan6
   9 * created by: Travis Keep
  10 */
  11
  12 #ifndef __SIGNIFICANTDIGITINTERVAL_H__
  13 #define __SIGNIFICANTDIGITINTERVAL_H__
  14
  15 #include "unicode/uobject.h"
  16 #include "unicode/utypes.h"
  17
  18 U_NAMESPACE_BEGIN
  19
  20 /**
  21  * An interval of allowed significant digit counts.
  22  */
  23 class U_I18N_API SignificantDigitInterval : public UMemory {
  24 public:
  25
  26     /**
  27      * No limits on significant digits.
  28      */
  29     SignificantDigitInterval()
  30             : fMax(INT32_MAX), fMin(0) { }
  31
  32     /**
  33      * Make this instance have no limit on significant digits.
  34      */
  35     void clear() {
  36         fMin = 0;
  37         fMax = INT32_MAX;
  38     }
  39
  40     /**
  41      * Returns TRUE if this object is equal to rhs.
  42      */
  43     UBool equals(const SignificantDigitInterval &rhs) const {
  44         return ((fMax == rhs.fMax) && (fMin == rhs.fMin));
  45     }
  46
  47     /**
  48      * Sets maximum significant digits. 0 or negative means no maximum.
  49      */
  50     void setMax(int32_t count) {
  51         fMax = count <= 0 ? INT32_MAX : count;
  52     }
  53
  54     /**
  55      * Get maximum significant digits. INT32_MAX means no maximum.
  56      */
  57     int32_t getMax() const {
  58         return fMax;
  59     }
  60
  61     /**
  62      * Sets minimum significant digits. 0 or negative means no minimum.
  63      */
  64     void setMin(int32_t count) {
  65         fMin = count <= 0 ? 0 : count;
  66     }
  67
  68     /**
  69      * Get maximum significant digits. 0 means no minimum.
  70      */
  71     int32_t getMin() const {
  72         return fMin;
  73     }
  74
  75     /**
  76      * Returns TRUE if this instance represents no constraints on significant
  77      * digits.
  78      */
  79     UBool isNoConstraints() const {
  80         return fMin == 0 && fMax == INT32_MAX;
  81     }
  82
  83 private:
  84     int32_t fMax;
  85     int32_t fMin;
  86 };
  87
  88 U_NAMESPACE_END
  89
  90 #endif  // __SIGNIFICANTDIGITINTERVAL_H__