double-conversion-bignum.cpp | Explore in Territory

// © 2018 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
//
// From the double-conversion library. Original license:
//
// Copyright 2010 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
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//       notice, this list of conditions and the following disclaimer.
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//       with the distribution.
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// ICU PATCH: ifdef around UCONFIG_NO_FORMATTING
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING

#include <algorithm>
#include <cstring>

// ICU PATCH: Customize header file paths for ICU.

#include "double-conversion-bignum.h"
#include "double-conversion-utils.h"

// ICU PATCH: Wrap in ICU namespace
U_NAMESPACE_BEGIN

namespace double_conversion {

Bignum::Chunk& Bignum::RawBigit(const int index) { … }


const Bignum::Chunk& Bignum::RawBigit(const int index) const { … }


template<typename S>
static int BitSize(const S value) { … }

// Guaranteed to lie in one Bigit.
void Bignum::AssignUInt16(const uint16_t value) { … }


void Bignum::AssignUInt64(uint64_t value) { … }


void Bignum::AssignBignum(const Bignum& other) { … }


static uint64_t ReadUInt64(const Vector<const char> buffer,
                           const int from,
                           const int digits_to_read) { … }


void Bignum::AssignDecimalString(const Vector<const char> value) { … }


static uint64_t HexCharValue(const int c) { … }


// Unlike AssignDecimalString(), this function is "only" used
// for unit-tests and therefore not performance critical.
void Bignum::AssignHexString(Vector<const char> value) { … }


void Bignum::AddUInt64(const uint64_t operand) { … }


void Bignum::AddBignum(const Bignum& other) { … }


void Bignum::SubtractBignum(const Bignum& other) { … }


void Bignum::ShiftLeft(const int shift_amount) { … }


void Bignum::MultiplyByUInt32(const uint32_t factor) { … }


void Bignum::MultiplyByUInt64(const uint64_t factor) { … }


void Bignum::MultiplyByPowerOfTen(const int exponent) { … }


void Bignum::Square() { … }


void Bignum::AssignPowerUInt16(uint16_t base, const int power_exponent) { … }


// Precondition: this/other < 16bit.
uint16_t Bignum::DivideModuloIntBignum(const Bignum& other) { … }


template<typename S>
static int SizeInHexChars(S number) { … }


static char HexCharOfValue(const int value) { … }


bool Bignum::ToHexString(char* buffer, const int buffer_size) const { … }


Bignum::Chunk Bignum::BigitOrZero(const int index) const { … }


int Bignum::Compare(const Bignum& a, const Bignum& b) { … }


int Bignum::PlusCompare(const Bignum& a, const Bignum& b, const Bignum& c) { … }


void Bignum::Clamp() { … }


void Bignum::Align(const Bignum& other) { … }


void Bignum::BigitsShiftLeft(const int shift_amount) { … }


void Bignum::SubtractTimes(const Bignum& other, const int factor) { … }


}  // namespace double_conversion

// ICU PATCH: Close ICU namespace
U_NAMESPACE_END
#endif // ICU PATCH: close #if !UCONFIG_NO_FORMATTING
chromium/third_party/icu/source/i18n/double-conversion-bignum.cpp
