ICU 73.1 73.1

numberformatter.h
Go to the documentation of this file.
1 // © 2017 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3
4 #ifndef __NUMBERFORMATTER_H__
5 #define __NUMBERFORMATTER_H__
6
7 #include "unicode/utypes.h"
8
9 #if U_SHOW_CPLUSPLUS_API
10
11 #if !UCONFIG_NO_FORMATTING
12
13 #include "unicode/appendable.h"
14 #include "unicode/bytestream.h"
15 #include "unicode/currunit.h"
16 #include "unicode/dcfmtsym.h"
17 #include "unicode/displayoptions.h"
18 #include "unicode/fieldpos.h"
19 #include "unicode/fpositer.h"
20 #include "unicode/measunit.h"
21 #include "unicode/nounit.h"
22 #include "unicode/parseerr.h"
23 #include "unicode/plurrule.h"
24 #include "unicode/ucurr.h"
25 #include "unicode/unum.h"
26 #include "unicode/unumberformatter.h"
27 #include "unicode/uobject.h"
28 #include "unicode/unumberoptions.h"
29 #include "unicode/formattednumber.h"
30
86 U_NAMESPACE_BEGIN
87
88 // Forward declarations:
89 class IFixedDecimal;
90 class FieldPositionIteratorHandler;
91 class FormattedStringBuilder;
92
93 namespace numparse {
94 namespace impl {
95
96 // Forward declarations:
97 class NumberParserImpl;
98 class MultiplierParseHandler;
99
100 }
101 }
102
103 namespace units {
104
105 // Forward declarations:
106 class UnitsRouter;
107
108 } // namespace units
109
110 namespace number { // icu::number
111
112 // Forward declarations:
113 class UnlocalizedNumberFormatter;
114 class LocalizedNumberFormatter;
115 class SimpleNumberFormatter;
116 class FormattedNumber;
117 class Notation;
118 class ScientificNotation;
119 class Precision;
120 class FractionPrecision;
121 class CurrencyPrecision;
122 class IncrementPrecision;
123 class IntegerWidth;
124
125 namespace impl {
126
127 // can't be #ifndef U_HIDE_INTERNAL_API; referenced throughout this file in public classes
133 typedef int16_t digits_t;
134
135 // can't be #ifndef U_HIDE_INTERNAL_API; needed for struct initialization
142 static constexpr int32_t kInternalDefaultThreshold = 3;
143
144 // Forward declarations:
145 class Padder;
146 struct MacroProps;
147 struct MicroProps;
148 class DecimalQuantity;
149 class UFormattedNumberData;
150 class NumberFormatterImpl;
151 struct ParsedPatternInfo;
152 class ScientificModifier;
153 class MultiplierProducer;
154 class RoundingImpl;
155 class ScientificHandler;
156 class Modifier;
157 class AffixPatternProvider;
158 class NumberPropertyMapper;
159 struct DecimalFormatProperties;
160 class MultiplierFormatHandler;
161 class CurrencySymbols;
162 class GeneratorHelpers;
163 class DecNum;
164 class NumberRangeFormatterImpl;
165 struct RangeMacroProps;
166 struct UFormattedNumberImpl;
167 class MutablePatternModifier;
168 class ImmutablePatternModifier;
169 struct DecimalFormatWarehouse;
170 struct SimpleMicroProps;
171 class AdoptingSignumModifierStore;
172
179 void touchRangeLocales(impl::RangeMacroProps& macros);
180
181 } // namespace impl
182
188 typedef Notation CompactNotation;
189
195 typedef Notation SimpleNotation;
196
202 class U_I18N_API Notation : public UMemory {
203 public:
228 static ScientificNotation scientific();
229
252 static ScientificNotation engineering();
253
295 static CompactNotation compactShort();
296
319 static CompactNotation compactLong();
320
345 static SimpleNotation simple();
346
347 private:
348 enum NotationType {
349 NTN_SCIENTIFIC, NTN_COMPACT, NTN_SIMPLE, NTN_ERROR
350 } fType;
351
352 union NotationUnion {
353 // For NTN_SCIENTIFIC
355 struct ScientificSettings {
357 int8_t fEngineeringInterval;
359 bool fRequireMinInt;
361 impl::digits_t fMinExponentDigits;
363 UNumberSignDisplay fExponentSignDisplay;
364 } scientific;
365
366 // For NTN_COMPACT
367 UNumberCompactStyle compactStyle;
368
369 // For NTN_ERROR
370 UErrorCode errorCode;
371 } fUnion;
372
373 typedef NotationUnion::ScientificSettings ScientificSettings;
374
375 Notation(const NotationType &type, const NotationUnion &union_) : fType(type), fUnion(union_) {}
376
377 Notation(UErrorCode errorCode) : fType(NTN_ERROR) {
378 fUnion.errorCode = errorCode;
379 }
380
381 Notation() : fType(NTN_SIMPLE), fUnion() {}
382
383 UBool copyErrorTo(UErrorCode &status) const {
384 if (fType == NTN_ERROR) {
385 status = fUnion.errorCode;
386 return true;
387 }
388 return false;
389 }
390
391 // To allow MacroProps to initialize empty instances:
392 friend struct impl::MacroProps;
393 friend class ScientificNotation;
394
395 // To allow implementation to access internal types:
396 friend class impl::NumberFormatterImpl;
397 friend class impl::ScientificModifier;
398 friend class impl::ScientificHandler;
399
400 // To allow access to the skeleton generation code:
401 friend class impl::GeneratorHelpers;
402 };
403
412 class U_I18N_API ScientificNotation : public Notation {
413 public:
427 ScientificNotation withMinExponentDigits(int32_t minExponentDigits) const;
428
442 ScientificNotation withExponentSignDisplay(UNumberSignDisplay exponentSignDisplay) const;
443
444 private:
445 // Inherit constructor
446 using Notation::Notation;
447
448 // Raw constructor for NumberPropertyMapper
449 ScientificNotation(int8_t fEngineeringInterval, bool fRequireMinInt, impl::digits_t fMinExponentDigits,
450 UNumberSignDisplay fExponentSignDisplay);
451
452 friend class Notation;
453
454 // So that NumberPropertyMapper can create instances
455 friend class impl::NumberPropertyMapper;
456 };
457
463 typedef Precision SignificantDigitsPrecision;
464
473 class U_I18N_API Precision : public UMemory {
474
475 public:
493 static Precision unlimited();
494
501 static FractionPrecision integer();
502
530 static FractionPrecision fixedFraction(int32_t minMaxFractionPlaces);
531
545 static FractionPrecision minFraction(int32_t minFractionPlaces);
546
557 static FractionPrecision maxFraction(int32_t maxFractionPlaces);
558
572 static FractionPrecision minMaxFraction(int32_t minFractionPlaces, int32_t maxFractionPlaces);
573
587 static SignificantDigitsPrecision fixedSignificantDigits(int32_t minMaxSignificantDigits);
588
601 static SignificantDigitsPrecision minSignificantDigits(int32_t minSignificantDigits);
602
611 static SignificantDigitsPrecision maxSignificantDigits(int32_t maxSignificantDigits);
612
624 static SignificantDigitsPrecision minMaxSignificantDigits(int32_t minSignificantDigits,
625 int32_t maxSignificantDigits);
626
646 static IncrementPrecision increment(double roundingIncrement);
647
671 static IncrementPrecision incrementExact(uint64_t mantissa, int16_t magnitude);
672
690 static CurrencyPrecision currency(UCurrencyUsage currencyUsage);
691
699 Precision trailingZeroDisplay(UNumberTrailingZeroDisplay trailingZeroDisplay) const;
700
701 private:
702 enum PrecisionType {
703 RND_BOGUS,
704 RND_NONE,
705 RND_FRACTION,
706 RND_SIGNIFICANT,
707 RND_FRACTION_SIGNIFICANT,
708
709 // Used for strange increments like 3.14.
710 RND_INCREMENT,
711
712 // Used for increments with 1 as the only digit. This is different than fraction
713 // rounding because it supports having additional trailing zeros. For example, this
714 // class is used to round with the increment 0.010.
715 RND_INCREMENT_ONE,
716
717 // Used for increments with 5 as the only digit (nickel rounding).
718 RND_INCREMENT_FIVE,
719
720 RND_CURRENCY,
721 RND_ERROR
722 } fType;
723
724 union PrecisionUnion {
726 struct FractionSignificantSettings {
727 // For RND_FRACTION, RND_SIGNIFICANT, and RND_FRACTION_SIGNIFICANT
729 impl::digits_t fMinFrac;
731 impl::digits_t fMaxFrac;
733 impl::digits_t fMinSig;
735 impl::digits_t fMaxSig;
737 UNumberRoundingPriority fPriority;
742 bool fRetain;
743 } fracSig;
745 struct IncrementSettings {
746 // For RND_INCREMENT, RND_INCREMENT_ONE, and RND_INCREMENT_FIVE
747 // Note: This is a union, so we shouldn't own memory, since
748 // the default destructor would leak it.
750 uint64_t fIncrement;
752 impl::digits_t fIncrementMagnitude;
754 impl::digits_t fMinFrac;
755 } increment;
756 UCurrencyUsage currencyUsage; // For RND_CURRENCY
757 UErrorCode errorCode; // For RND_ERROR
758 } fUnion;
759
760 UNumberTrailingZeroDisplay fTrailingZeroDisplay = UNUM_TRAILING_ZERO_AUTO;
761
762 typedef PrecisionUnion::FractionSignificantSettings FractionSignificantSettings;
763 typedef PrecisionUnion::IncrementSettings IncrementSettings;
764
765 Precision(const PrecisionType& type, const PrecisionUnion& union_)
766 : fType(type), fUnion(union_) {}
767
768 Precision(UErrorCode errorCode) : fType(RND_ERROR) {
769 fUnion.errorCode = errorCode;
770 }
771
772 Precision() : fType(RND_BOGUS) {}
773
774 bool isBogus() const {
775 return fType == RND_BOGUS;
776 }
777
778 UBool copyErrorTo(UErrorCode &status) const {
779 if (fType == RND_ERROR) {
780 status = fUnion.errorCode;
781 return true;
782 }
783 return false;
784 }
785
786 // On the parent type so that this method can be called internally on Precision instances.
787 Precision withCurrency(const CurrencyUnit &currency, UErrorCode &status) const;
788
789 static FractionPrecision constructFraction(int32_t minFrac, int32_t maxFrac);
790
791 static Precision constructSignificant(int32_t minSig, int32_t maxSig);
792
793 static Precision constructFractionSignificant(
794 const FractionPrecision &base,
795 int32_t minSig,
796 int32_t maxSig,
797 UNumberRoundingPriority priority,
798 bool retain);
799
800 static IncrementPrecision constructIncrement(uint64_t increment, impl::digits_t magnitude);
801
802 static CurrencyPrecision constructCurrency(UCurrencyUsage usage);
803
804 // To allow MacroProps/MicroProps to initialize bogus instances:
805 friend struct impl::MacroProps;
806 friend struct impl::MicroProps;
807
808 // To allow NumberFormatterImpl to access isBogus() and other internal methods:
809 friend class impl::NumberFormatterImpl;
810
811 // To allow NumberPropertyMapper to create instances from DecimalFormatProperties:
812 friend class impl::NumberPropertyMapper;
813
814 // To allow access to the main implementation class:
815 friend class impl::RoundingImpl;
816
817 // To allow child classes to call private methods:
818 friend class FractionPrecision;
819 friend class CurrencyPrecision;
820 friend class IncrementPrecision;
821
822 // To allow access to the skeleton generation code:
823 friend class impl::GeneratorHelpers;
824
825 // To allow access to isBogus and the default (bogus) constructor:
826 friend class units::UnitsRouter;
827 };
828
838 class U_I18N_API FractionPrecision : public Precision {
839 public:
854 Precision withSignificantDigits(
855 int32_t minSignificantDigits,
856 int32_t maxSignificantDigits,
857 UNumberRoundingPriority priority) const;
858
876 Precision withMinDigits(int32_t minSignificantDigits) const;
877
895 Precision withMaxDigits(int32_t maxSignificantDigits) const;
896
897 private:
898 // Inherit constructor
899 using Precision::Precision;
900
901 // To allow parent class to call this class's constructor:
902 friend class Precision;
903 };
904
914 class U_I18N_API CurrencyPrecision : public Precision {
915 public:
933 Precision withCurrency(const CurrencyUnit &currency) const;
934
935 private:
936 // Inherit constructor
937 using Precision::Precision;
938
939 // To allow parent class to call this class's constructor:
940 friend class Precision;
941 };
942
952 class U_I18N_API IncrementPrecision : public Precision {
953 public:
969 Precision withMinFraction(int32_t minFrac) const;
970
971 private:
972 // Inherit constructor
973 using Precision::Precision;
974
975 // To allow parent class to call this class's constructor:
976 friend class Precision;
977 };
978
988 class U_I18N_API IntegerWidth : public UMemory {
989 public:
1001 static IntegerWidth zeroFillTo(int32_t minInt);
1002
1014 IntegerWidth truncateAt(int32_t maxInt);
1015
1016 private:
1017 union {
1018 struct {
1019 impl::digits_t fMinInt;
1020 impl::digits_t fMaxInt;
1021 bool fFormatFailIfMoreThanMaxDigits;
1022 } minMaxInt;
1023 UErrorCode errorCode;
1024 } fUnion;
1025 bool fHasError = false;
1026
1027 IntegerWidth(impl::digits_t minInt, impl::digits_t maxInt, bool formatFailIfMoreThanMaxDigits);
1028
1029 IntegerWidth(UErrorCode errorCode) { // NOLINT
1030 fUnion.errorCode = errorCode;
1031 fHasError = true;
1032 }
1033
1034 IntegerWidth() { // NOLINT
1035 fUnion.minMaxInt.fMinInt = -1;
1036 }
1037
1039 static IntegerWidth standard() {
1040 return IntegerWidth::zeroFillTo(1);
1041 }
1042
1043 bool isBogus() const {
1044 return !fHasError && fUnion.minMaxInt.fMinInt == -1;
1045 }
1046
1047 UBool copyErrorTo(UErrorCode &status) const {
1048 if (fHasError) {
1049 status = fUnion.errorCode;
1050 return true;
1051 }
1052 return false;
1053 }
1054
1055 void apply(impl::DecimalQuantity &quantity, UErrorCode &status) const;
1056
1057 bool operator==(const IntegerWidth& other) const;
1058
1059 // To allow MacroProps/MicroProps to initialize empty instances:
1060 friend struct impl::MacroProps;
1061 friend struct impl::MicroProps;
1062
1063 // To allow NumberFormatterImpl to access isBogus():
1064 friend class impl::NumberFormatterImpl;
1065
1066 // To allow the use of this class when formatting:
1067 friend class impl::MutablePatternModifier;
1068 friend class impl::ImmutablePatternModifier;
1069
1070 // So that NumberPropertyMapper can create instances
1071 friend class impl::NumberPropertyMapper;
1072
1073 // To allow access to the skeleton generation code:
1074 friend class impl::GeneratorHelpers;
1075 };
1076
1085 class U_I18N_API Scale : public UMemory {
1086 public:
1093 static Scale none();
1094
1105 static Scale powerOfTen(int32_t power);
1106
1119 static Scale byDecimal(StringPiece multiplicand);
1120
1129 static Scale byDouble(double multiplicand);
1130
1137 static Scale byDoubleAndPowerOfTen(double multiplicand, int32_t power);
1138
1139 // We need a custom destructor for the DecNum, which means we need to declare
1140 // the copy/move constructor/assignment quartet.
1141
1143 Scale(const Scale& other);
1144
1146 Scale& operator=(const Scale& other);
1147
1149 Scale(Scale&& src) noexcept;
1150
1152 Scale& operator=(Scale&& src) noexcept;
1153
1155 ~Scale();
1156
1157 #ifndef U_HIDE_INTERNAL_API
1159 Scale(int32_t magnitude, impl::DecNum* arbitraryToAdopt);
1160 #endif /* U_HIDE_INTERNAL_API */
1161
1162 private:
1163 int32_t fMagnitude;
1164 impl::DecNum* fArbitrary;
1165 UErrorCode fError;
1166
1167 Scale(UErrorCode error) : fMagnitude(0), fArbitrary(nullptr), fError(error) {}
1168
1169 Scale() : fMagnitude(0), fArbitrary(nullptr), fError(U_ZERO_ERROR) {}
1170
1171 bool isValid() const {
1172 return fMagnitude != 0 || fArbitrary != nullptr;
1173 }
1174
1175 UBool copyErrorTo(UErrorCode &status) const {
1176 if (U_FAILURE(fError)) {
1177 status = fError;
1178 return true;
1179 }
1180 return false;
1181 }
1182
1183 void applyTo(impl::DecimalQuantity& quantity) const;
1184
1185 void applyReciprocalTo(impl::DecimalQuantity& quantity) const;
1186
1187 // To allow MacroProps/MicroProps to initialize empty instances:
1188 friend struct impl::MacroProps;
1189 friend struct impl::MicroProps;
1190
1191 // To allow NumberFormatterImpl to access isBogus() and perform other operations:
1192 friend class impl::NumberFormatterImpl;
1193
1194 // To allow the helper class MultiplierFormatHandler access to private fields:
1195 friend class impl::MultiplierFormatHandler;
1196
1197 // To allow access to the skeleton generation code:
1198 friend class impl::GeneratorHelpers;
1199
1200 // To allow access to parsing code:
1201 friend class ::icu::numparse::impl::NumberParserImpl;
1202 friend class ::icu::numparse::impl::MultiplierParseHandler;
1203 };
1204
1205 namespace impl {
1206
1207 // Do not enclose entire StringProp with #ifndef U_HIDE_INTERNAL_API, needed for a protected field.
1208 // And do not enclose its class boilerplate within #ifndef U_HIDE_INTERNAL_API.
1213 class U_I18N_API StringProp : public UMemory {
1214
1215 public:
1217 ~StringProp();
1218
1220 StringProp(const StringProp &other);
1221
1223 StringProp &operator=(const StringProp &other);
1224
1225 #ifndef U_HIDE_INTERNAL_API
1226
1228 StringProp(StringProp &&src) noexcept;
1229
1231 StringProp &operator=(StringProp &&src) noexcept;
1232
1234 int16_t length() const {
1235 return fLength;
1236 }
1237
1241 void set(StringPiece value);
1242
1244 bool isSet() const {
1245 return fLength > 0;
1246 }
1247
1248 #endif // U_HIDE_INTERNAL_API
1249
1250 private:
1251 char *fValue;
1252 int16_t fLength;
1253 UErrorCode fError;
1254
1255 StringProp() : fValue(nullptr), fLength(0), fError(U_ZERO_ERROR) {
1256 }
1257
1259 UBool copyErrorTo(UErrorCode &status) const {
1260 if (U_FAILURE(fError)) {
1261 status = fError;
1262 return true;
1263 }
1264 return false;
1265 }
1266
1267 // Allow NumberFormatterImpl to access fValue.
1268 friend class impl::NumberFormatterImpl;
1269
1270 // Allow skeleton generation code to access private members.
1271 friend class impl::GeneratorHelpers;
1272
1273 // Allow MacroProps/MicroProps to initialize empty instances and to call
1274 // copyErrorTo().
1275 friend struct impl::MacroProps;
1276 };
1277
1278 // Do not enclose entire SymbolsWrapper with #ifndef U_HIDE_INTERNAL_API, needed for a protected field
1280 class U_I18N_API SymbolsWrapper : public UMemory {
1281 public:
1283 SymbolsWrapper() : fType(SYMPTR_NONE), fPtr{nullptr} {}
1284
1286 SymbolsWrapper(const SymbolsWrapper &other);
1287
1289 SymbolsWrapper &operator=(const SymbolsWrapper &other);
1290
1292 SymbolsWrapper(SymbolsWrapper&& src) noexcept;
1293
1295 SymbolsWrapper &operator=(SymbolsWrapper&& src) noexcept;
1296
1298 ~SymbolsWrapper();
1299
1300 #ifndef U_HIDE_INTERNAL_API
1301
1306 void setTo(const DecimalFormatSymbols &dfs);
1307
1312 void setTo(const NumberingSystem *ns);
1313
1318 bool isDecimalFormatSymbols() const;
1319
1324 bool isNumberingSystem() const;
1325
1330 const DecimalFormatSymbols *getDecimalFormatSymbols() const;
1331
1336 const NumberingSystem *getNumberingSystem() const;
1337
1338 #endif // U_HIDE_INTERNAL_API
1339
1341 UBool copyErrorTo(UErrorCode &status) const {
1342 if (fType == SYMPTR_DFS && fPtr.dfs == nullptr) {
1343 status = U_MEMORY_ALLOCATION_ERROR;
1344 return true;
1345 } else if (fType == SYMPTR_NS && fPtr.ns == nullptr) {
1346 status = U_MEMORY_ALLOCATION_ERROR;
1347 return true;
1348 }
1349 return false;
1350 }
1351
1352 private:
1353 enum SymbolsPointerType {
1354 SYMPTR_NONE, SYMPTR_DFS, SYMPTR_NS
1355 } fType;
1356
1357 union {
1358 const DecimalFormatSymbols *dfs;
1359 const NumberingSystem *ns;
1360 } fPtr;
1361
1362 void doCopyFrom(const SymbolsWrapper &other);
1363
1364 void doMoveFrom(SymbolsWrapper&& src);
1365
1366 void doCleanup();
1367 };
1368
1369 // Do not enclose entire Grouper with #ifndef U_HIDE_INTERNAL_API, needed for a protected field
1371 class U_I18N_API Grouper : public UMemory {
1372 public:
1373 #ifndef U_HIDE_INTERNAL_API
1375 static Grouper forStrategy(UNumberGroupingStrategy grouping);
1376
1381 static Grouper forProperties(const DecimalFormatProperties& properties);
1382
1383 // Future: static Grouper forProperties(DecimalFormatProperties& properties);
1384
1386 Grouper(int16_t grouping1, int16_t grouping2, int16_t minGrouping, UNumberGroupingStrategy strategy)
1387 : fGrouping1(grouping1),
1388 fGrouping2(grouping2),
1389 fMinGrouping(minGrouping),
1390 fStrategy(strategy) {}
1391
1393 int16_t getPrimary() const;
1394
1396 int16_t getSecondary() const;
1397 #endif // U_HIDE_INTERNAL_API
1398
1399 private:
1408 int16_t fGrouping1;
1409 int16_t fGrouping2;
1410
1418 int16_t fMinGrouping;
1419
1424 UNumberGroupingStrategy fStrategy;
1425
1426 Grouper() : fGrouping1(-3) {}
1427
1428 bool isBogus() const {
1429 return fGrouping1 == -3;
1430 }
1431
1433 void setLocaleData(const impl::ParsedPatternInfo &patternInfo, const Locale& locale);
1434
1435 bool groupAtPosition(int32_t position, const impl::DecimalQuantity &value) const;
1436
1437 // To allow MacroProps/MicroProps to initialize empty instances:
1438 friend struct MacroProps;
1439 friend struct MicroProps;
1440 friend struct SimpleMicroProps;
1441
1442 // To allow NumberFormatterImpl to access isBogus() and perform other operations:
1443 friend class NumberFormatterImpl;
1444 friend class ::icu::number::SimpleNumberFormatter;
1445
1446 // To allow NumberParserImpl to perform setLocaleData():
1447 friend class ::icu::numparse::impl::NumberParserImpl;
1448
1449 // To allow access to the skeleton generation code:
1450 friend class impl::GeneratorHelpers;
1451 };
1452
1453 // Do not enclose entire Padder with #ifndef U_HIDE_INTERNAL_API, needed for a protected field
1455 class U_I18N_API Padder : public UMemory {
1456 public:
1457 #ifndef U_HIDE_INTERNAL_API
1459 static Padder none();
1460
1462 static Padder codePoints(UChar32 cp, int32_t targetWidth, UNumberFormatPadPosition position);
1463
1465 static Padder forProperties(const DecimalFormatProperties& properties);
1466 #endif // U_HIDE_INTERNAL_API
1467
1468 private:
1469 UChar32 fWidth; // -3 = error; -2 = bogus; -1 = no padding
1470 union {
1471 struct {
1472 int32_t fCp;
1473 UNumberFormatPadPosition fPosition;
1474 } padding;
1475 UErrorCode errorCode;
1476 } fUnion;
1477
1478 Padder(UChar32 cp, int32_t width, UNumberFormatPadPosition position);
1479
1480 Padder(int32_t width);
1481
1482 Padder(UErrorCode errorCode) : fWidth(-3) { // NOLINT
1483 fUnion.errorCode = errorCode;
1484 }
1485
1486 Padder() : fWidth(-2) {} // NOLINT
1487
1488 bool isBogus() const {
1489 return fWidth == -2;
1490 }
1491
1492 UBool copyErrorTo(UErrorCode &status) const {
1493 if (fWidth == -3) {
1494 status = fUnion.errorCode;
1495 return true;
1496 }
1497 return false;
1498 }
1499
1500 bool isValid() const {
1501 return fWidth > 0;
1502 }
1503
1504 int32_t padAndApply(const impl::Modifier &mod1, const impl::Modifier &mod2,
1505 FormattedStringBuilder &string, int32_t leftIndex, int32_t rightIndex,
1506 UErrorCode &status) const;
1507
1508 // To allow MacroProps/MicroProps to initialize empty instances:
1509 friend struct MacroProps;
1510 friend struct MicroProps;
1511
1512 // To allow NumberFormatterImpl to access isBogus() and perform other operations:
1513 friend class impl::NumberFormatterImpl;
1514
1515 // To allow access to the skeleton generation code:
1516 friend class impl::GeneratorHelpers;
1517 };
1518
1519 // Do not enclose entire MacroProps with #ifndef U_HIDE_INTERNAL_API, needed for a protected field
1521 struct U_I18N_API MacroProps : public UMemory {
1523 Notation notation;
1524
1526 MeasureUnit unit; // = MeasureUnit(); (the base dimensionless unit)
1527
1529 MeasureUnit perUnit; // = MeasureUnit(); (the base dimensionless unit)
1530
1532 Precision precision; // = Precision(); (bogus)
1533
1535 UNumberFormatRoundingMode roundingMode = UNUM_ROUND_HALFEVEN;
1536
1538 Grouper grouper; // = Grouper(); (bogus)
1539
1541 Padder padder; // = Padder(); (bogus)
1542
1544 IntegerWidth integerWidth; // = IntegerWidth(); (bogus)
1545
1547 SymbolsWrapper symbols;
1548
1549 // UNUM_XYZ_COUNT denotes null (bogus) values.
1550
1552 UNumberUnitWidth unitWidth = UNUM_UNIT_WIDTH_COUNT;
1553
1555 UNumberSignDisplay sign = UNUM_SIGN_COUNT;
1556
1558 bool approximately = false;
1559
1561 UNumberDecimalSeparatorDisplay decimal = UNUM_DECIMAL_SEPARATOR_COUNT;
1562
1564 Scale scale; // = Scale(); (benign value)
1565
1567 StringProp usage; // = StringProp(); (no usage)
1568
1570 StringProp unitDisplayCase; // = StringProp(); (nominative)
1571
1573 const AffixPatternProvider* affixProvider = nullptr; // no ownership
1574
1576 const PluralRules* rules = nullptr; // no ownership
1577
1579 int32_t threshold = kInternalDefaultThreshold;
1580
1582 Locale locale;
1583
1584 // NOTE: Uses default copy and move constructors.
1585
1590 bool copyErrorTo(UErrorCode &status) const {
1591 return notation.copyErrorTo(status) || precision.copyErrorTo(status) ||
1592 padder.copyErrorTo(status) || integerWidth.copyErrorTo(status) ||
1593 symbols.copyErrorTo(status) || scale.copyErrorTo(status) || usage.copyErrorTo(status) ||
1594 unitDisplayCase.copyErrorTo(status);
1595 }
1596 };
1597
1598 } // namespace impl
1599
1600 #if (U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN) && defined(_MSC_VER)
1601 // Ignore MSVC warning 4661. This is generated for NumberFormatterSettings<>::toSkeleton() as this method
1602 // is defined elsewhere (in number_skeletons.cpp). The compiler is warning that the explicit template instantiation
1603 // inside this single translation unit (CPP file) is incomplete, and thus it isn't sure if the template class is
1604 // fully defined. However, since each translation unit explicitly instantiates all the necessary template classes,
1605 // they will all be passed to the linker, and the linker will still find and export all the class members.
1606 #pragma warning(push)
1607 #pragma warning(disable: 4661)
1608 #endif
1609
1615 template<typename Derived>
1616 class U_I18N_API NumberFormatterSettings {
1617 public:
1646 Derived notation(const Notation &notation) const &;
1647
1657 Derived notation(const Notation &notation) &&;
1658
1707 Derived unit(const icu::MeasureUnit &unit) const &;
1708
1718 Derived unit(const icu::MeasureUnit &unit) &&;
1719
1733 Derived adoptUnit(icu::MeasureUnit *unit) const &;
1734
1744 Derived adoptUnit(icu::MeasureUnit *unit) &&;
1745
1768 Derived perUnit(const icu::MeasureUnit &perUnit) const &;
1769
1779 Derived perUnit(const icu::MeasureUnit &perUnit) &&;
1780
1794 Derived adoptPerUnit(icu::MeasureUnit *perUnit) const &;
1795
1805 Derived adoptPerUnit(icu::MeasureUnit *perUnit) &&;
1806
1837 Derived precision(const Precision& precision) const &;
1838
1848 Derived precision(const Precision& precision) &&;
1849
1868 Derived roundingMode(UNumberFormatRoundingMode roundingMode) const &;
1869
1878 Derived roundingMode(UNumberFormatRoundingMode roundingMode) &&;
1879
1907 Derived grouping(UNumberGroupingStrategy strategy) const &;
1908
1918 Derived grouping(UNumberGroupingStrategy strategy) &&;
1919
1944 Derived integerWidth(const IntegerWidth &style) const &;
1945
1955 Derived integerWidth(const IntegerWidth &style) &&;
1956
1997 Derived symbols(const DecimalFormatSymbols &symbols) const &;
1998
2008 Derived symbols(const DecimalFormatSymbols &symbols) &&;
2009
2043 Derived adoptSymbols(NumberingSystem *symbols) const &;
2044
2054 Derived adoptSymbols(NumberingSystem *symbols) &&;
2055
2081 Derived unitWidth(UNumberUnitWidth width) const &;
2082
2092 Derived unitWidth(UNumberUnitWidth width) &&;
2093
2119 Derived sign(UNumberSignDisplay style) const &;
2120
2130 Derived sign(UNumberSignDisplay style) &&;
2131
2157 Derived decimal(UNumberDecimalSeparatorDisplay style) const &;
2158
2168 Derived decimal(UNumberDecimalSeparatorDisplay style) &&;
2169
2194 Derived scale(const Scale &scale) const &;
2195
2205 Derived scale(const Scale &scale) &&;
2206
2249 Derived usage(StringPiece usage) const &;
2250
2258 Derived usage(StringPiece usage) &&;
2259
2260 #ifndef U_HIDE_DRAFT_API
2269 Derived displayOptions(const DisplayOptions &displayOptions) const &;
2270
2278 Derived displayOptions(const DisplayOptions &displayOptions) &&;
2279 #endif // U_HIDE_DRAFT_API
2280
2281 #ifndef U_HIDE_INTERNAL_API
2292 Derived unitDisplayCase(StringPiece unitDisplayCase) const &;
2293
2303 Derived unitDisplayCase(StringPiece unitDisplayCase) &&;
2304 #endif // U_HIDE_INTERNAL_API
2305
2306 #ifndef U_HIDE_INTERNAL_API
2307
2313 Derived padding(const impl::Padder &padder) const &;
2314
2316 Derived padding(const impl::Padder &padder) &&;
2317
2324 Derived threshold(int32_t threshold) const &;
2325
2327 Derived threshold(int32_t threshold) &&;
2328
2334 Derived macros(const impl::MacroProps& macros) const &;
2335
2337 Derived macros(const impl::MacroProps& macros) &&;
2338
2340 Derived macros(impl::MacroProps&& macros) const &;
2341
2343 Derived macros(impl::MacroProps&& macros) &&;
2344
2345 #endif /* U_HIDE_INTERNAL_API */
2346
2364 UnicodeString toSkeleton(UErrorCode& status) const;
2365
2377 LocalPointer<Derived> clone() const &;
2378
2386 LocalPointer<Derived> clone() &&;
2387
2394 UBool copyErrorTo(UErrorCode &outErrorCode) const {
2395 if (U_FAILURE(outErrorCode)) {
2396 // Do not overwrite the older error code
2397 return true;
2398 }
2399 fMacros.copyErrorTo(outErrorCode);
2400 return U_FAILURE(outErrorCode);
2401 }
2402
2403 // NOTE: Uses default copy and move constructors.
2404
2405 private:
2406 impl::MacroProps fMacros;
2407
2408 // Don't construct me directly! Use (Un)LocalizedNumberFormatter.
2409 NumberFormatterSettings() = default;
2410
2411 friend class LocalizedNumberFormatter;
2412 friend class UnlocalizedNumberFormatter;
2413
2414 // Give NumberRangeFormatter access to the MacroProps
2415 friend void impl::touchRangeLocales(impl::RangeMacroProps& macros);
2416 friend class impl::NumberRangeFormatterImpl;
2417 };
2418
2419 // Explicit instantiations in source/i18n/number_fluent.cpp.
2420 // (MSVC treats imports/exports of explicit instantiations differently.)
2421 #ifndef _MSC_VER
2422 extern template class NumberFormatterSettings<UnlocalizedNumberFormatter>;
2423 extern template class NumberFormatterSettings<LocalizedNumberFormatter>;
2424 #endif
2425
2434 class U_I18N_API UnlocalizedNumberFormatter
2435 : public NumberFormatterSettings<UnlocalizedNumberFormatter>, public UMemory {
2436
2437 public:
2447 LocalizedNumberFormatter locale(const icu::Locale &locale) const &;
2448
2458 LocalizedNumberFormatter locale(const icu::Locale &locale) &&;
2459
2465 UnlocalizedNumberFormatter() = default;
2466
2471 UnlocalizedNumberFormatter(const UnlocalizedNumberFormatter &other);
2472
2478 UnlocalizedNumberFormatter(UnlocalizedNumberFormatter&& src) noexcept;
2479
2484 UnlocalizedNumberFormatter& operator=(const UnlocalizedNumberFormatter& other);
2485
2491 UnlocalizedNumberFormatter& operator=(UnlocalizedNumberFormatter&& src) noexcept;
2492
2493 private:
2494 explicit UnlocalizedNumberFormatter(const NumberFormatterSettings<UnlocalizedNumberFormatter>& other);
2495
2496 explicit UnlocalizedNumberFormatter(
2497 NumberFormatterSettings<UnlocalizedNumberFormatter>&& src) noexcept;
2498
2499 // To give the fluent setters access to this class's constructor:
2500 friend class NumberFormatterSettings<UnlocalizedNumberFormatter>;
2501
2502 // To give NumberFormatter::with() access to this class's constructor:
2503 friend class NumberFormatter;
2504 };
2505
2514 class U_I18N_API LocalizedNumberFormatter
2515 : public NumberFormatterSettings<LocalizedNumberFormatter>, public UMemory {
2516 public:
2528 FormattedNumber formatInt(int64_t value, UErrorCode &status) const;
2529
2541 FormattedNumber formatDouble(double value, UErrorCode &status) const;
2542
2557 FormattedNumber formatDecimal(StringPiece value, UErrorCode& status) const;
2558
2559 #ifndef U_HIDE_INTERNAL_API
2560
2561
2565 const DecimalFormatSymbols* getDecimalFormatSymbols() const;
2566
2570 FormattedNumber formatDecimalQuantity(const impl::DecimalQuantity& dq, UErrorCode& status) const;
2571
2575 void getAffixImpl(bool isPrefix, bool isNegative, UnicodeString& result, UErrorCode& status) const;
2576
2581 const impl::NumberFormatterImpl* getCompiled() const;
2582
2587 int32_t getCallCount() const;
2588
2589 #endif /* U_HIDE_INTERNAL_API */
2590
2604 Format* toFormat(UErrorCode& status) const;
2605
2611 LocalizedNumberFormatter() = default;
2612
2617 LocalizedNumberFormatter(const LocalizedNumberFormatter &other);
2618
2624 LocalizedNumberFormatter(LocalizedNumberFormatter&& src) noexcept;
2625
2630 LocalizedNumberFormatter& operator=(const LocalizedNumberFormatter& other);
2631
2637 LocalizedNumberFormatter& operator=(LocalizedNumberFormatter&& src) noexcept;
2638
2639 #ifndef U_HIDE_INTERNAL_API
2640
2653 void formatImpl(impl::UFormattedNumberData *results, UErrorCode &status) const;
2654
2655 #endif /* U_HIDE_INTERNAL_API */
2656
2661 ~LocalizedNumberFormatter();
2662
2663 private:
2664 // Note: fCompiled can't be a LocalPointer because impl::NumberFormatterImpl is defined in an internal
2665 // header, and LocalPointer needs the full class definition in order to delete the instance.
2666 const impl::NumberFormatterImpl* fCompiled {nullptr};
2667 char fUnsafeCallCount[8] {}; // internally cast to u_atomic_int32_t
2668
2669 // Owned pointer to a DecimalFormatWarehouse, used when copying a LocalizedNumberFormatter
2670 // from a DecimalFormat.
2671 const impl::DecimalFormatWarehouse* fWarehouse {nullptr};
2672
2673 explicit LocalizedNumberFormatter(const NumberFormatterSettings<LocalizedNumberFormatter>& other);
2674
2675 explicit LocalizedNumberFormatter(NumberFormatterSettings<LocalizedNumberFormatter>&& src) noexcept;
2676
2677 LocalizedNumberFormatter(const impl::MacroProps &macros, const Locale &locale);
2678
2679 LocalizedNumberFormatter(impl::MacroProps &&macros, const Locale &locale);
2680
2681 void resetCompiled();
2682
2683 void lnfMoveHelper(LocalizedNumberFormatter&& src);
2684
2685 void lnfCopyHelper(const LocalizedNumberFormatter& src, UErrorCode& status);
2686
2690 bool computeCompiled(UErrorCode& status) const;
2691
2692 // To give the fluent setters access to this class's constructor:
2693 friend class NumberFormatterSettings<UnlocalizedNumberFormatter>;
2694 friend class NumberFormatterSettings<LocalizedNumberFormatter>;
2695
2696 // To give UnlocalizedNumberFormatter::locale() access to this class's constructor:
2697 friend class UnlocalizedNumberFormatter;
2698 };
2699
2700 #if (U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN) && defined(_MSC_VER)
2701 // Warning 4661.
2702 #pragma warning(pop)
2703 #endif
2704
2710 class U_I18N_API NumberFormatter final {
2711 public:
2719 static UnlocalizedNumberFormatter with();
2720
2730 static LocalizedNumberFormatter withLocale(const Locale &locale);
2731
2749 static UnlocalizedNumberFormatter forSkeleton(const UnicodeString& skeleton, UErrorCode& status);
2750
2771 static UnlocalizedNumberFormatter forSkeleton(const UnicodeString& skeleton,
2772 UParseError& perror, UErrorCode& status);
2773
2777 NumberFormatter() = delete;
2778 };
2779
2780 } // namespace number
2781 U_NAMESPACE_END
2782
2783 #endif /* #if !UCONFIG_NO_FORMATTING */
2784
2785 #endif /* U_SHOW_CPLUSPLUS_API */
2786
2787 #endif // __NUMBERFORMATTER_H__
appendable.h
C++ API: Appendable class: Sink for Unicode code points and 16-bit code units (char16_ts).
bytestream.h
C++ API: Interface for writing bytes, and implementation classes.
icu::CurrencyUnit
A unit of currency, such as USD (U.S.
Definition: currunit.h:39
icu::DecimalFormatSymbols
This class represents the set of symbols needed by DecimalFormat to format numbers.
Definition: dcfmtsym.h:86
icu::DisplayOptions
Represents all the display options that are supported by CLDR such as grammatical case,...
Definition: displayoptions.h:45
icu::Format
Base class for all formats.
Definition: format.h:98
icu::LocalPointer
"Smart pointer" class, deletes objects via the standard C++ delete operator.
Definition: localpointer.h:191
icu::Locale
A Locale object represents a specific geographical, political, or cultural region.
Definition: locid.h:195
icu::MeasureUnit
A unit such as length, mass, volume, currency, etc.
Definition: measunit.h:369
icu::NumberingSystem
Defines numbering systems.
Definition: numsys.h:60
icu::PluralRules
Defines rules for mapping non-negative numeric values onto a small set of keywords.
Definition: plurrule.h:212
icu::StringPiece
A string-like object that points to a sized piece of memory.
Definition: stringpiece.h:60
icu::UMemory
UMemory is the common ICU base class.
Definition: uobject.h:115
icu::UnicodeString
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition: unistr.h:296
icu::number::CurrencyPrecision
A class that defines a rounding precision parameterized by a currency to be used when formatting numb...
Definition: numberformatter.h:914
icu::number::CurrencyPrecision::withCurrency
Precision withCurrency(const CurrencyUnit &currency) const
Associates a currency with this rounding precision.
icu::number::FormattedNumber
The result of a number formatting operation.
Definition: formattednumber.h:47
icu::number::FractionPrecision
A class that defines a rounding precision based on a number of fraction places and optionally signifi...
Definition: numberformatter.h:838
icu::number::FractionPrecision::withMinDigits
Precision withMinDigits(int32_t minSignificantDigits) const
Ensure that no less than this number of significant digits are retained when rounding according to fr...
icu::number::FractionPrecision::withSignificantDigits
Precision withSignificantDigits(int32_t minSignificantDigits, int32_t maxSignificantDigits, UNumberRoundingPriority priority) const
Override maximum fraction digits with maximum significant digits depending on the magnitude of the nu...
icu::number::FractionPrecision::withMaxDigits
Precision withMaxDigits(int32_t maxSignificantDigits) const
Ensure that no more than this number of significant digits are retained when rounding according to fr...
icu::number::IncrementPrecision
A class that defines a rounding precision parameterized by a rounding increment to be used when forma...
Definition: numberformatter.h:952
icu::number::IncrementPrecision::withMinFraction
Precision withMinFraction(int32_t minFrac) const
Specifies the minimum number of fraction digits to render after the decimal separator,...
icu::number::IntegerWidth
A class that defines the strategy for padding and truncating integers before the decimal separator.
Definition: numberformatter.h:988
icu::number::IntegerWidth::zeroFillTo
static IntegerWidth zeroFillTo(int32_t minInt)
Pad numbers at the beginning with zeros to guarantee a certain number of numerals before the decimal ...
icu::number::IntegerWidth::truncateAt
IntegerWidth truncateAt(int32_t maxInt)
Truncate numbers exceeding a certain number of numerals before the decimal separator.
icu::number::LocalizedNumberFormatter
A NumberFormatter that has a locale associated with it; this means .format() methods are available.
Definition: numberformatter.h:2515
icu::number::LocalizedNumberFormatter::getDecimalFormatSymbols
const DecimalFormatSymbols * getDecimalFormatSymbols() const
icu::number::LocalizedNumberFormatter::getCompiled
const impl::NumberFormatterImpl * getCompiled() const
Internal method for testing.
icu::number::LocalizedNumberFormatter::operator=
LocalizedNumberFormatter & operator=(const LocalizedNumberFormatter &other)
Copy assignment operator.
icu::number::LocalizedNumberFormatter::LocalizedNumberFormatter
LocalizedNumberFormatter(LocalizedNumberFormatter &&src) noexcept
Move constructor: The source LocalizedNumberFormatter will be left in a valid but undefined state.
icu::number::LocalizedNumberFormatter::operator=
LocalizedNumberFormatter & operator=(LocalizedNumberFormatter &&src) noexcept
Move assignment operator: The source LocalizedNumberFormatter will be left in a valid but undefined s...
icu::number::LocalizedNumberFormatter::formatInt
FormattedNumber formatInt(int64_t value, UErrorCode &status) const
Format the given integer number to a string using the settings specified in the NumberFormatter fluen...
icu::number::LocalizedNumberFormatter::LocalizedNumberFormatter
LocalizedNumberFormatter()=default
Default constructor: puts the formatter into a valid but undefined state.
icu::number::LocalizedNumberFormatter::LocalizedNumberFormatter
LocalizedNumberFormatter(const LocalizedNumberFormatter &other)
Returns a copy of this LocalizedNumberFormatter.
icu::number::LocalizedNumberFormatter::getCallCount
int32_t getCallCount() const
Internal method for testing.
icu::number::LocalizedNumberFormatter::~LocalizedNumberFormatter
~LocalizedNumberFormatter()
Destruct this LocalizedNumberFormatter, cleaning up any memory it might own.
icu::number::LocalizedNumberFormatter::toFormat
Format * toFormat(UErrorCode &status) const
Creates a representation of this LocalizedNumberFormat as an icu::Format, enabling the use of this nu...
icu::number::LocalizedNumberFormatter::formatImpl
void formatImpl(impl::UFormattedNumberData *results, UErrorCode &status) const
This is the core entrypoint to the number formatting pipeline.
icu::number::LocalizedNumberFormatter::formatDecimal
FormattedNumber formatDecimal(StringPiece value, UErrorCode &status) const
Format the given decimal number to a string using the settings specified in the NumberFormatter fluen...
icu::number::LocalizedNumberFormatter::getAffixImpl
void getAffixImpl(bool isPrefix, bool isNegative, UnicodeString &result, UErrorCode &status) const
Internal method for DecimalFormat compatibility.
icu::number::LocalizedNumberFormatter::formatDecimalQuantity
FormattedNumber formatDecimalQuantity(const impl::DecimalQuantity &dq, UErrorCode &status) const
Internal method.
icu::number::LocalizedNumberFormatter::formatDouble
FormattedNumber formatDouble(double value, UErrorCode &status) const
Format the given float or double to a string using the settings specified in the NumberFormatter flue...
icu::number::Notation
A class that defines the notation style to be used when formatting numbers in NumberFormatter.
Definition: numberformatter.h:202
icu::number::Notation::compactShort
static CompactNotation compactShort()
Print the number using short-form compact notation.
icu::number::Notation::engineering
static ScientificNotation engineering()
Print the number using engineering notation, a variant of scientific notation in which the exponent m...
icu::number::Notation::compactLong
static CompactNotation compactLong()
Print the number using long-form compact notation.
icu::number::Notation::simple
static SimpleNotation simple()
Print the number using simple notation without any scaling by powers of ten.
icu::number::Notation::scientific
static ScientificNotation scientific()
Print the number using scientific notation (also known as scientific form, standard index form,...
icu::number::NumberFormatterSettings
An abstract base class for specifying settings related to number formatting.
Definition: numberformatter.h:1616
icu::number::NumberFormatterSettings::unitDisplayCase
Derived unitDisplayCase(StringPiece unitDisplayCase) &&
NOTE: Use displayOptions instead.
icu::number::NumberFormatterSettings::adoptSymbols
Derived adoptSymbols(NumberingSystem *symbols) const &
Specifies that the given numbering system should be used when fetching symbols.
icu::number::NumberFormatterSettings::precision
Derived precision(const Precision &precision) const &
Specifies the rounding precision to use when formatting numbers.
icu::number::NumberFormatterSettings::decimal
Derived decimal(UNumberDecimalSeparatorDisplay style) &&
Overload of decimal() for use on an rvalue reference.
icu::number::NumberFormatterSettings::unitWidth
Derived unitWidth(UNumberUnitWidth width) const &
Sets the width of the unit (measure unit or currency).
icu::number::NumberFormatterSettings::adoptUnit
Derived adoptUnit(icu::MeasureUnit *unit) const &
Like unit(), but takes ownership of a pointer.
icu::number::NumberFormatterSettings::perUnit
Derived perUnit(const icu::MeasureUnit &perUnit) &&
Overload of perUnit() for use on an rvalue reference.
icu::number::NumberFormatterSettings::padding
Derived padding(const impl::Padder &padder) &&
icu::number::NumberFormatterSettings::adoptSymbols
Derived adoptSymbols(NumberingSystem *symbols) &&
Overload of adoptSymbols() for use on an rvalue reference.
icu::number::NumberFormatterSettings::macros
Derived macros(const impl::MacroProps &macros) &&
icu::number::NumberFormatterSettings::roundingMode
Derived roundingMode(UNumberFormatRoundingMode roundingMode) &&
Overload of roundingMode() for use on an rvalue reference.
icu::number::NumberFormatterSettings::integerWidth
Derived integerWidth(const IntegerWidth &style) const &
Specifies the minimum and maximum number of digits to render before the decimal mark.
icu::number::NumberFormatterSettings::macros
Derived macros(const impl::MacroProps &macros) const &
Internal fluent setter to overwrite the entire macros object.
icu::number::NumberFormatterSettings::threshold
Derived threshold(int32_t threshold) const &
Internal fluent setter to support a custom regulation threshold.
icu::number::NumberFormatterSettings::perUnit
Derived perUnit(const icu::MeasureUnit &perUnit) const &
Sets a unit to be used in the denominator.
icu::number::NumberFormatterSettings::integerWidth
Derived integerWidth(const IntegerWidth &style) &&
Overload of integerWidth() for use on an rvalue reference.
icu::number::NumberFormatterSettings::unitDisplayCase
Derived unitDisplayCase(StringPiece unitDisplayCase) const &
NOTE: Use displayOptions instead.
icu::number::NumberFormatterSettings::grouping
Derived grouping(UNumberGroupingStrategy strategy) const &
Specifies the grouping strategy to use when formatting numbers.
icu::number::NumberFormatterSettings::unit
Derived unit(const icu::MeasureUnit &unit) const &
Specifies the unit (unit of measure, currency, or percent) to associate with rendered numbers.
icu::number::NumberFormatterSettings::displayOptions
Derived displayOptions(const DisplayOptions &displayOptions) const &
Specifies the DisplayOptions.
icu::number::NumberFormatterSettings::usage
Derived usage(StringPiece usage) &&
Overload of usage() for use on an rvalue reference.
icu::number::NumberFormatterSettings::displayOptions
Derived displayOptions(const DisplayOptions &displayOptions) &&
Overload of displayOptions() for use on an rvalue reference.
icu::number::NumberFormatterSettings::adoptPerUnit
Derived adoptPerUnit(icu::MeasureUnit *perUnit) const &
Like perUnit(), but takes ownership of a pointer.
icu::number::NumberFormatterSettings::adoptUnit
Derived adoptUnit(icu::MeasureUnit *unit) &&
Overload of adoptUnit() for use on an rvalue reference.
icu::number::NumberFormatterSettings::scale
Derived scale(const Scale &scale) &&
Overload of scale() for use on an rvalue reference.
icu::number::NumberFormatterSettings::precision
Derived precision(const Precision &precision) &&
Overload of precision() for use on an rvalue reference.
icu::number::NumberFormatterSettings::symbols
Derived symbols(const DecimalFormatSymbols &symbols) &&
Overload of symbols() for use on an rvalue reference.
icu::number::NumberFormatterSettings::padding
Derived padding(const impl::Padder &padder) const &
Set the padding strategy.
icu::number::NumberFormatterSettings::notation
Derived notation(const Notation &notation) const &
Specifies the notation style (simple, scientific, or compact) for rendering numbers.
icu::number::NumberFormatterSettings::sign
Derived sign(UNumberSignDisplay style) const &
Sets the plus/minus sign display strategy.
icu::number::NumberFormatterSettings::threshold
Derived threshold(int32_t threshold) &&
icu::number::NumberFormatterSettings::roundingMode
Derived roundingMode(UNumberFormatRoundingMode roundingMode) const &
Specifies how to determine the direction to round a number when it has more digits than fit in the de...
icu::number::NumberFormatterSettings::symbols
Derived symbols(const DecimalFormatSymbols &symbols) const &
Specifies the symbols (decimal separator, grouping separator, percent sign, numerals,...
icu::number::NumberFormatterSettings::macros
Derived macros(impl::MacroProps &&macros) &&
icu::number::NumberFormatterSettings::clone
LocalPointer< Derived > clone() const &
Returns the current (Un)LocalizedNumberFormatter as a LocalPointer wrapping a heap-allocated copy of ...
icu::number::NumberFormatterSettings::sign
Derived sign(UNumberSignDisplay style) &&
Overload of sign() for use on an rvalue reference.
icu::number::NumberFormatterSettings::toSkeleton
UnicodeString toSkeleton(UErrorCode &status) const
Creates a skeleton string representation of this number formatter.
icu::number::NumberFormatterSettings::grouping
Derived grouping(UNumberGroupingStrategy strategy) &&
Overload of grouping() for use on an rvalue reference.
icu::number::NumberFormatterSettings::usage
Derived usage(StringPiece usage) const &
Specifies the usage for which numbers will be formatted ("person-height", "road", "rainfall",...
icu::number::NumberFormatterSettings::adoptPerUnit
Derived adoptPerUnit(icu::MeasureUnit *perUnit) &&
Overload of adoptPerUnit() for use on an rvalue reference.
icu::number::NumberFormatterSettings::unitWidth
Derived unitWidth(UNumberUnitWidth width) &&
Overload of unitWidth() for use on an rvalue reference.
icu::number::NumberFormatterSettings::decimal
Derived decimal(UNumberDecimalSeparatorDisplay style) const &
Sets the decimal separator display strategy.
icu::number::NumberFormatterSettings::unit
Derived unit(const icu::MeasureUnit &unit) &&
Overload of unit() for use on an rvalue reference.
icu::number::NumberFormatterSettings::macros
Derived macros(impl::MacroProps &&macros) const &
icu::number::NumberFormatterSettings::scale
Derived scale(const Scale &scale) const &
Sets a scale (multiplier) to be used to scale the number by an arbitrary amount before formatting.
icu::number::NumberFormatterSettings::notation
Derived notation(const Notation &notation) &&
Overload of notation() for use on an rvalue reference.
icu::number::NumberFormatter
See the main description in numberformatter.h for documentation and examples.
Definition: numberformatter.h:2710
icu::number::NumberFormatter::forSkeleton
static UnlocalizedNumberFormatter forSkeleton(const UnicodeString &skeleton, UParseError &perror, UErrorCode &status)
Call this method at the beginning of a NumberFormatter fluent chain to create an instance based on a ...
icu::number::NumberFormatter::forSkeleton
static UnlocalizedNumberFormatter forSkeleton(const UnicodeString &skeleton, UErrorCode &status)
Call this method at the beginning of a NumberFormatter fluent chain to create an instance based on a ...
icu::number::NumberFormatter::with
static UnlocalizedNumberFormatter with()
Call this method at the beginning of a NumberFormatter fluent chain in which the locale is not curren...
icu::number::NumberFormatter::NumberFormatter
NumberFormatter()=delete
Use factory methods instead of the constructor to create a NumberFormatter.
icu::number::NumberFormatter::withLocale
static LocalizedNumberFormatter withLocale(const Locale &locale)
Call this method at the beginning of a NumberFormatter fluent chain in which the locale is known at t...
icu::number::Precision
A class that defines the rounding precision to be used when formatting numbers in NumberFormatter.
Definition: numberformatter.h:473
icu::number::Precision::maxSignificantDigits
static SignificantDigitsPrecision maxSignificantDigits(int32_t maxSignificantDigits)
Show numbers rounded if necessary to a certain number of significant digits/figures.
icu::number::Precision::fixedFraction
static FractionPrecision fixedFraction(int32_t minMaxFractionPlaces)
Show numbers rounded if necessary to a certain number of fraction places (numerals after the decimal ...
icu::number::Precision::minSignificantDigits
static SignificantDigitsPrecision minSignificantDigits(int32_t minSignificantDigits)
Always show at least a certain number of significant digits/figures, padding with zeros if necessary.
icu::number::Precision::maxFraction
static FractionPrecision maxFraction(int32_t maxFractionPlaces)
Show numbers rounded if necessary to a certain number of fraction places (numerals after the decimal ...
icu::number::Precision::increment
static IncrementPrecision increment(double roundingIncrement)
Show numbers rounded if necessary to the closest multiple of a certain rounding increment.
icu::number::Precision::currency
static CurrencyPrecision currency(UCurrencyUsage currencyUsage)
Show numbers rounded and padded according to the rules for the currency unit.
icu::number::Precision::minFraction
static FractionPrecision minFraction(int32_t minFractionPlaces)
Always show at least a certain number of fraction places after the decimal separator,...
icu::number::Precision::trailingZeroDisplay
Precision trailingZeroDisplay(UNumberTrailingZeroDisplay trailingZeroDisplay) const
Configure how trailing zeros are displayed on numbers.
icu::number::Precision::unlimited
static Precision unlimited()
Show all available digits to full precision.
icu::number::Precision::integer
static FractionPrecision integer()
Show numbers rounded if necessary to the nearest integer.
icu::number::Precision::fixedSignificantDigits
static SignificantDigitsPrecision fixedSignificantDigits(int32_t minMaxSignificantDigits)
Show numbers rounded if necessary to a certain number of significant digits or significant figures.
icu::number::Precision::incrementExact
static IncrementPrecision incrementExact(uint64_t mantissa, int16_t magnitude)
Version of Precision::increment() that takes an integer at a particular power of 10.
icu::number::Precision::minMaxFraction
static FractionPrecision minMaxFraction(int32_t minFractionPlaces, int32_t maxFractionPlaces)
Show numbers rounded if necessary to a certain number of fraction places (numerals after the decimal ...
icu::number::Precision::minMaxSignificantDigits
static SignificantDigitsPrecision minMaxSignificantDigits(int32_t minSignificantDigits, int32_t maxSignificantDigits)
Show numbers rounded if necessary to a certain number of significant digits/figures; in addition,...
icu::number::Scale
A class that defines a quantity by which a number should be multiplied when formatting.
Definition: numberformatter.h:1085
icu::number::Scale::none
static Scale none()
Do not change the value of numbers when formatting or parsing.
icu::number::Scale::operator=
Scale & operator=(const Scale &other)
icu::number::Scale::powerOfTen
static Scale powerOfTen(int32_t power)
Multiply numbers by a power of ten before formatting.
icu::number::Scale::Scale
Scale(const Scale &other)
icu::number::Scale::byDoubleAndPowerOfTen
static Scale byDoubleAndPowerOfTen(double multiplicand, int32_t power)
Multiply a number by both a power of ten and by an arbitrary double value.
icu::number::Scale::byDecimal
static Scale byDecimal(StringPiece multiplicand)
Multiply numbers by an arbitrary value before formatting.
icu::number::Scale::Scale
Scale(int32_t magnitude, impl::DecNum *arbitraryToAdopt)
icu::number::Scale::Scale
Scale(Scale &&src) noexcept
icu::number::Scale::~Scale
~Scale()
icu::number::Scale::byDouble
static Scale byDouble(double multiplicand)
Multiply numbers by an arbitrary value before formatting.
icu::number::Scale::operator=
Scale & operator=(Scale &&src) noexcept
icu::number::ScientificNotation
A class that defines the scientific notation style to be used when formatting numbers in NumberFormat...
Definition: numberformatter.h:412
icu::number::ScientificNotation::withExponentSignDisplay
ScientificNotation withExponentSignDisplay(UNumberSignDisplay exponentSignDisplay) const
Sets whether to show the sign on positive and negative exponents in scientific notation.
icu::number::ScientificNotation::withMinExponentDigits
ScientificNotation withMinExponentDigits(int32_t minExponentDigits) const
Sets the minimum number of digits to show in the exponent of scientific notation, padding with zeros ...
icu::number::UnlocalizedNumberFormatter
A NumberFormatter that does not yet have a locale.
Definition: numberformatter.h:2435
icu::number::UnlocalizedNumberFormatter::UnlocalizedNumberFormatter
UnlocalizedNumberFormatter()=default
Default constructor: puts the formatter into a valid but undefined state.
icu::number::UnlocalizedNumberFormatter::operator=
UnlocalizedNumberFormatter & operator=(const UnlocalizedNumberFormatter &other)
Copy assignment operator.
icu::number::UnlocalizedNumberFormatter::UnlocalizedNumberFormatter
UnlocalizedNumberFormatter(const UnlocalizedNumberFormatter &other)
Returns a copy of this UnlocalizedNumberFormatter.
icu::number::UnlocalizedNumberFormatter::locale
LocalizedNumberFormatter locale(const icu::Locale &locale) &&
Overload of locale() for use on an rvalue reference.
icu::number::UnlocalizedNumberFormatter::UnlocalizedNumberFormatter
UnlocalizedNumberFormatter(UnlocalizedNumberFormatter &&src) noexcept
Move constructor: The source UnlocalizedNumberFormatter will be left in a valid but undefined state.
icu::number::UnlocalizedNumberFormatter::operator=
UnlocalizedNumberFormatter & operator=(UnlocalizedNumberFormatter &&src) noexcept
Move assignment operator: The source UnlocalizedNumberFormatter will be left in a valid but undefined...
icu::number::UnlocalizedNumberFormatter::locale
LocalizedNumberFormatter locale(const icu::Locale &locale) const &
Associate the given locale with the number formatter.
icu::number::impl::Grouper
Definition: numberformatter.h:1371
icu::number::impl::Grouper::forStrategy
static Grouper forStrategy(UNumberGroupingStrategy grouping)
icu::number::impl::Grouper::Grouper
Grouper(int16_t grouping1, int16_t grouping2, int16_t minGrouping, UNumberGroupingStrategy strategy)
Definition: numberformatter.h:1386
icu::number::impl::Grouper::getSecondary
int16_t getSecondary() const
icu::number::impl::Grouper::forProperties
static Grouper forProperties(const DecimalFormatProperties &properties)
Resolve the values in Properties to a Grouper object.
icu::number::impl::Grouper::getPrimary
int16_t getPrimary() const
icu::number::impl::Padder
Definition: numberformatter.h:1455
icu::number::impl::Padder::forProperties
static Padder forProperties(const DecimalFormatProperties &properties)
icu::number::impl::Padder::codePoints
static Padder codePoints(UChar32 cp, int32_t targetWidth, UNumberFormatPadPosition position)
icu::number::impl::Padder::none
static Padder none()
icu::number::impl::StringProp
Manages NumberFormatterSettings::usage()'s char* instance on the heap.
Definition: numberformatter.h:1213
icu::number::impl::StringProp::StringProp
StringProp(StringProp &&src) noexcept
icu::number::impl::StringProp::StringProp
StringProp(const StringProp &other)
icu::number::impl::StringProp::length
int16_t length() const
Definition: numberformatter.h:1234
icu::number::impl::StringProp::isSet
bool isSet() const
Definition: numberformatter.h:1244
icu::number::impl::StringProp::~StringProp
~StringProp()
icu::number::impl::StringProp::operator=
StringProp & operator=(StringProp &&src) noexcept
icu::number::impl::StringProp::operator=
StringProp & operator=(const StringProp &other)
icu::number::impl::StringProp::set
void set(StringPiece value)
icu::number::impl::SymbolsWrapper
Definition: numberformatter.h:1280
icu::number::impl::SymbolsWrapper::SymbolsWrapper
SymbolsWrapper()
Definition: numberformatter.h:1283
icu::number::impl::SymbolsWrapper::operator=
SymbolsWrapper & operator=(const SymbolsWrapper &other)
icu::number::impl::SymbolsWrapper::getNumberingSystem
const NumberingSystem * getNumberingSystem() const
Get the NumberingSystem pointer.
icu::number::impl::SymbolsWrapper::isNumberingSystem
bool isNumberingSystem() const
Whether the object is currently holding a NumberingSystem.
icu::number::impl::SymbolsWrapper::getDecimalFormatSymbols
const DecimalFormatSymbols * getDecimalFormatSymbols() const
Get the DecimalFormatSymbols pointer.
icu::number::impl::SymbolsWrapper::~SymbolsWrapper
~SymbolsWrapper()
icu::number::impl::SymbolsWrapper::SymbolsWrapper
SymbolsWrapper(const SymbolsWrapper &other)
icu::number::impl::SymbolsWrapper::SymbolsWrapper
SymbolsWrapper(SymbolsWrapper &&src) noexcept
icu::number::impl::SymbolsWrapper::setTo
void setTo(const DecimalFormatSymbols &dfs)
The provided object is copied, but we do not adopt it.
icu::number::impl::SymbolsWrapper::operator=
SymbolsWrapper & operator=(SymbolsWrapper &&src) noexcept
icu::number::impl::SymbolsWrapper::setTo
void setTo(const NumberingSystem *ns)
Adopt the provided object.
icu::number::impl::SymbolsWrapper::copyErrorTo
UBool copyErrorTo(UErrorCode &status) const
Definition: numberformatter.h:1341
icu::number::impl::SymbolsWrapper::isDecimalFormatSymbols
bool isDecimalFormatSymbols() const
Whether the object is currently holding a DecimalFormatSymbols.
currunit.h
C++ API: Currency Unit Information.
dcfmtsym.h
C++ API: Symbols for formatting numbers.
displayoptions.h
C++ API: Display options class.
fieldpos.h
C++ API: FieldPosition identifies the fields in a formatted output.
formattednumber.h
C API: Formatted number result from various number formatting functions.
fpositer.h
C++ API: FieldPosition Iterator.
measunit.h
C++ API: A unit for measuring a quantity.
icu::operator==
U_EXPORT UBool operator==(const StringPiece &x, const StringPiece &y)
Global operator == for StringPiece.
nounit.h
C++ API: units for percent and permille.
icu::number::impl::digits_t
int16_t digits_t
Datatype for minimum/maximum fraction digits.
Definition: numberformatter.h:133
icu::number::impl::touchRangeLocales
void touchRangeLocales(impl::RangeMacroProps &macros)
Used for NumberRangeFormatter and implemented in numrange_fluent.cpp.
parseerr.h
C API: Parse Error Information.
plurrule.h
C++ API: PluralRules object.
UParseError
A UParseError struct is used to returned detailed information about parsing errors.
Definition: parseerr.h:58
icu::number::Notation::NotationUnion::ScientificSettings
Definition: numberformatter.h:355
icu::number::Notation::NotationUnion::ScientificSettings::fRequireMinInt
bool fRequireMinInt
Definition: numberformatter.h:359
icu::number::Notation::NotationUnion::ScientificSettings::fMinExponentDigits
impl::digits_t fMinExponentDigits
Definition: numberformatter.h:361
icu::number::Notation::NotationUnion::ScientificSettings::fExponentSignDisplay
UNumberSignDisplay fExponentSignDisplay
Definition: numberformatter.h:363
icu::number::Notation::NotationUnion::ScientificSettings::fEngineeringInterval
int8_t fEngineeringInterval
Definition: numberformatter.h:357
icu::number::Precision::PrecisionUnion::FractionSignificantSettings
Definition: numberformatter.h:726
icu::number::Precision::PrecisionUnion::FractionSignificantSettings::fMinFrac
impl::digits_t fMinFrac
Definition: numberformatter.h:729
icu::number::Precision::PrecisionUnion::FractionSignificantSettings::fRetain
bool fRetain
Whether to retain trailing zeros based on the looser strategy.
Definition: numberformatter.h:742
icu::number::Precision::PrecisionUnion::FractionSignificantSettings::fMaxSig
impl::digits_t fMaxSig
Definition: numberformatter.h:735
icu::number::Precision::PrecisionUnion::FractionSignificantSettings::fPriority
UNumberRoundingPriority fPriority
Definition: numberformatter.h:737
icu::number::Precision::PrecisionUnion::FractionSignificantSettings::fMaxFrac
impl::digits_t fMaxFrac
Definition: numberformatter.h:731
icu::number::Precision::PrecisionUnion::FractionSignificantSettings::fMinSig
impl::digits_t fMinSig
Definition: numberformatter.h:733
icu::number::Precision::PrecisionUnion::IncrementSettings
Definition: numberformatter.h:745
icu::number::Precision::PrecisionUnion::IncrementSettings::fIncrementMagnitude
impl::digits_t fIncrementMagnitude
Definition: numberformatter.h:752
icu::number::Precision::PrecisionUnion::IncrementSettings::fIncrement
uint64_t fIncrement
Definition: numberformatter.h:750
icu::number::Precision::PrecisionUnion::IncrementSettings::fMinFrac
impl::digits_t fMinFrac
Definition: numberformatter.h:754
icu::number::impl::MacroProps
Definition: numberformatter.h:1521
icu::number::impl::MacroProps::perUnit
MeasureUnit perUnit
Definition: numberformatter.h:1529
icu::number::impl::MacroProps::scale
Scale scale
Definition: numberformatter.h:1564
icu::number::impl::MacroProps::copyErrorTo
bool copyErrorTo(UErrorCode &status) const
Check all members for errors.
Definition: numberformatter.h:1590
icu::number::impl::MacroProps::usage
StringProp usage
Definition: numberformatter.h:1567
icu::number::impl::MacroProps::unitDisplayCase
StringProp unitDisplayCase
Definition: numberformatter.h:1570
icu::number::impl::MacroProps::locale
Locale locale
Definition: numberformatter.h:1582
icu::number::impl::MacroProps::precision
Precision precision
Definition: numberformatter.h:1532
icu::number::impl::MacroProps::integerWidth
IntegerWidth integerWidth
Definition: numberformatter.h:1544
icu::number::impl::MacroProps::padder
Padder padder
Definition: numberformatter.h:1541
icu::number::impl::MacroProps::grouper
Grouper grouper
Definition: numberformatter.h:1538
icu::number::impl::MacroProps::unit
MeasureUnit unit
Definition: numberformatter.h:1526
icu::number::impl::MacroProps::notation
Notation notation
Definition: numberformatter.h:1523
icu::number::impl::MacroProps::symbols
SymbolsWrapper symbols
Definition: numberformatter.h:1547
icu::number::impl::RangeMacroProps
Definition: numberrangeformatter.h:93
ucurr.h
C API: Encapsulates information about a currency.
UCurrencyUsage
UCurrencyUsage
Currency Usage used for Decimal Format.
Definition: ucurr.h:41
UChar32
int32_t UChar32
Define UChar32 as a type for single Unicode code points.
Definition: umachine.h:435
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition: umachine.h:247
unum.h
C API: Compatibility APIs for number formatting.
UNumberCompactStyle
UNumberCompactStyle
Constants for specifying short or long format.
Definition: unum.h:289
UNumberFormatPadPosition
UNumberFormatPadPosition
The possible number format pad positions.
Definition: unum.h:278
unumberformatter.h
C API: Localized number formatting; not recommended for C++.
UNumberRoundingPriority
UNumberRoundingPriority
An enum declaring how to resolve conflicts between maximum fraction digits and maximum significant di...
Definition: unumberformatter.h:118
UNumberSignDisplay
UNumberSignDisplay
An enum declaring how to denote positive and negative numbers.
Definition: unumberformatter.h:264
UNUM_SIGN_COUNT
@ UNUM_SIGN_COUNT
One more than the highest UNumberSignDisplay value.
Definition: unumberformatter.h:355
UNumberDecimalSeparatorDisplay
UNumberDecimalSeparatorDisplay
An enum declaring how to render the decimal separator.
Definition: unumberformatter.h:369
UNUM_DECIMAL_SEPARATOR_COUNT
@ UNUM_DECIMAL_SEPARATOR_COUNT
One more than the highest UNumberDecimalSeparatorDisplay value.
Definition: unumberformatter.h:392
UNumberTrailingZeroDisplay
UNumberTrailingZeroDisplay
An enum declaring how to render trailing zeros.
Definition: unumberformatter.h:403
UNUM_TRAILING_ZERO_AUTO
@ UNUM_TRAILING_ZERO_AUTO
Display trailing zeros according to the settings for minimum fraction and significant digits.
Definition: unumberformatter.h:409
UNumberUnitWidth
UNumberUnitWidth
An enum declaring how to render units, including currencies.
Definition: unumberformatter.h:152
UNUM_UNIT_WIDTH_COUNT
@ UNUM_UNIT_WIDTH_COUNT
One more than the highest UNumberUnitWidth value.
Definition: unumberformatter.h:242
unumberoptions.h
C API: Header-only input options for various number formatting APIs.
UNumberFormatRoundingMode
UNumberFormatRoundingMode
The possible number format rounding modes.
Definition: unumberoptions.h:28
UNUM_ROUND_HALFEVEN
@ UNUM_ROUND_HALFEVEN
Half-even rounding.
Definition: unumberoptions.h:37
UNumberGroupingStrategy
UNumberGroupingStrategy
An enum declaring the strategy for when and how to display grouping separators (i....
Definition: unumberoptions.h:96
uobject.h
C++ API: Common ICU base class UObject.
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
UErrorCode
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition: utypes.h:415
U_MEMORY_ALLOCATION_ERROR
@ U_MEMORY_ALLOCATION_ERROR
Memory allocation error.
Definition: utypes.h:457
U_ZERO_ERROR
@ U_ZERO_ERROR
No error, no warning.
Definition: utypes.h:449
U_FAILURE
#define U_FAILURE(x)
Does the error code indicate a failure?
Definition: utypes.h:717
U_I18N_API
#define U_I18N_API
Set to export library symbols from inside the i18n library, and to import them from outside.
Definition: utypes.h:301