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
18U_NAMESPACE_BEGIN
19
20/**
21 * An interval of allowed significant digit counts.
22 */
23class U_I18N_API SignificantDigitInterval : public UMemory {
24public:
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
83private:
84    int32_t fMax;
85    int32_t fMin;
86};
87
88U_NAMESPACE_END
89
90#endif  // __SIGNIFICANTDIGITINTERVAL_H__
91