1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
// © 2018 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
// Allow implicit conversion from char16_t* to UnicodeString for this file:
// Helpful in toString methods and elsewhere.
#define UNISTR_FROM_STRING_EXPLICIT
#include "number_decnum.h"
#include "number_types.h"
#include "number_multiplier.h"
#include "numparse_validators.h"
#include "number_utils.h"
#include "decNumber.h"
using namespace icu;
using namespace icu::number;
using namespace icu::number::impl;
using namespace icu::numparse::impl;
Scale::Scale(int32_t magnitude, DecNum* arbitraryToAdopt)
: fMagnitude(magnitude), fArbitrary(arbitraryToAdopt), fError(U_ZERO_ERROR) {
if (fArbitrary != nullptr) {
// Attempt to convert the DecNum to a magnitude multiplier.
fArbitrary->normalize();
if (fArbitrary->getRawDecNumber()->digits == 1 && fArbitrary->getRawDecNumber()->lsu[0] == 1 &&
!fArbitrary->isNegative()) {
// Success!
fMagnitude += fArbitrary->getRawDecNumber()->exponent;
delete fArbitrary;
fArbitrary = nullptr;
}
}
}
Scale::Scale(const Scale& other)
: fMagnitude(other.fMagnitude), fArbitrary(nullptr), fError(other.fError) {
if (other.fArbitrary != nullptr) {
UErrorCode localStatus = U_ZERO_ERROR;
fArbitrary = new DecNum(*other.fArbitrary, localStatus);
}
}
Scale& Scale::operator=(const Scale& other) {
fMagnitude = other.fMagnitude;
if (other.fArbitrary != nullptr) {
UErrorCode localStatus = U_ZERO_ERROR;
fArbitrary = new DecNum(*other.fArbitrary, localStatus);
} else {
fArbitrary = nullptr;
}
fError = other.fError;
return *this;
}
Scale::Scale(Scale&& src) U_NOEXCEPT
: fMagnitude(src.fMagnitude), fArbitrary(src.fArbitrary), fError(src.fError) {
// Take ownership away from src if necessary
src.fArbitrary = nullptr;
}
Scale& Scale::operator=(Scale&& src) U_NOEXCEPT {
fMagnitude = src.fMagnitude;
if (fArbitrary != nullptr) {
delete fArbitrary;
}
fArbitrary = src.fArbitrary;
fError = src.fError;
// Take ownership away from src if necessary
src.fArbitrary = nullptr;
return *this;
}
Scale::~Scale() {
delete fArbitrary;
}
Scale Scale::none() {
return {0, nullptr};
}
Scale Scale::powerOfTen(int32_t power) {
return {power, nullptr};
}
Scale Scale::byDecimal(StringPiece multiplicand) {
UErrorCode localError = U_ZERO_ERROR;
LocalPointer<DecNum> decnum(new DecNum(), localError);
if (U_FAILURE(localError)) {
return {localError};
}
decnum->setTo(multiplicand, localError);
if (U_FAILURE(localError)) {
return {localError};
}
return {0, decnum.orphan()};
}
Scale Scale::byDouble(double multiplicand) {
UErrorCode localError = U_ZERO_ERROR;
LocalPointer<DecNum> decnum(new DecNum(), localError);
if (U_FAILURE(localError)) {
return {localError};
}
decnum->setTo(multiplicand, localError);
if (U_FAILURE(localError)) {
return {localError};
}
return {0, decnum.orphan()};
}
Scale Scale::byDoubleAndPowerOfTen(double multiplicand, int32_t power) {
UErrorCode localError = U_ZERO_ERROR;
LocalPointer<DecNum> decnum(new DecNum(), localError);
if (U_FAILURE(localError)) {
return {localError};
}
decnum->setTo(multiplicand, localError);
if (U_FAILURE(localError)) {
return {localError};
}
return {power, decnum.orphan()};
}
void Scale::applyTo(impl::DecimalQuantity& quantity) const {
quantity.adjustMagnitude(fMagnitude);
if (fArbitrary != nullptr) {
UErrorCode localStatus = U_ZERO_ERROR;
quantity.multiplyBy(*fArbitrary, localStatus);
}
}
void Scale::applyReciprocalTo(impl::DecimalQuantity& quantity) const {
quantity.adjustMagnitude(-fMagnitude);
if (fArbitrary != nullptr) {
UErrorCode localStatus = U_ZERO_ERROR;
quantity.divideBy(*fArbitrary, localStatus);
}
}
void
MultiplierFormatHandler::setAndChain(const Scale& multiplier, const MicroPropsGenerator* parent) {
fMultiplier = multiplier;
fParent = parent;
}
void MultiplierFormatHandler::processQuantity(DecimalQuantity& quantity, MicroProps& micros,
UErrorCode& status) const {
fParent->processQuantity(quantity, micros, status);
fMultiplier.applyTo(quantity);
}
#endif /* #if !UCONFIG_NO_FORMATTING */
|
