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// © 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) {
if (this == &other) { return *this; } // self-assignment: no-op
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) 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) noexcept {
fMagnitude = src.fMagnitude;
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 */
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