icuSources/i18n/digitinterval.cpp

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4  * Copyright (C) 2015, International Business Machines
   5  * Corporation and others.  All Rights Reserved.
   6  *
   7  * file name: digitinterval.cpp
   8  */
   9
  10 #include "unicode/utypes.h"
  11
  12 #include "digitinterval.h"
  13
  14 U_NAMESPACE_BEGIN
  15
  16 void DigitInterval::expandToContain(const DigitInterval &rhs) {
  17     if (fSmallestInclusive > rhs.fSmallestInclusive) {
  18         fSmallestInclusive = rhs.fSmallestInclusive;
  19     }
  20     if (fLargestExclusive < rhs.fLargestExclusive) {
  21         fLargestExclusive = rhs.fLargestExclusive;
  22     }
  23 }
  24
  25 void DigitInterval::shrinkToFitWithin(const DigitInterval &rhs) {
  26     if (fSmallestInclusive < rhs.fSmallestInclusive) {
  27         fSmallestInclusive = rhs.fSmallestInclusive;
  28     }
  29     if (fLargestExclusive > rhs.fLargestExclusive) {
  30         fLargestExclusive = rhs.fLargestExclusive;
  31     }
  32 }
  33
  34 void DigitInterval::setIntDigitCount(int32_t count) {
  35     fLargestExclusive = count < 0 ? INT32_MAX : count;
  36 }
  37
  38 void DigitInterval::setFracDigitCount(int32_t count) {
  39     fSmallestInclusive = count < 0 ? INT32_MIN : -count;
  40 }
  41
  42 void DigitInterval::expandToContainDigit(int32_t digitExponent) {
  43   if (fLargestExclusive <= digitExponent) {
  44       fLargestExclusive = digitExponent + 1;
  45   } else if (fSmallestInclusive > digitExponent) {
  46       fSmallestInclusive = digitExponent;
  47   }
  48 }
  49
  50 UBool DigitInterval::contains(int32_t x) const {
  51     return (x < fLargestExclusive && x >= fSmallestInclusive);
  52 }
  53
  54
  55 U_NAMESPACE_END
  56