ledger::core::BigInt Class Reference

#include <ledger/core/math/BigInt.h>

Collaboration diagram for ledger::core::BigInt:

Public Types
typedef unsigned int	SimpleInt
typedef unsigned long	DoubleInt

Public Member Functions
	BigInt (const BigInt &cpy)
	BigInt (BigInt &&mov)
	BigInt (const void *data, size_t length, bool negative)
	BigInt (const std::vector< uint8_t > &data, bool negative)
	BigInt (int value)
	BigInt (unsigned int value)
	BigInt (unsigned long long value)
	BigInt (int64_t value)
	BigInt (const std::string &str)
int	toInt () const
unsigned	toUnsignedInt () const
uint64_t	toUint64 () const
int64_t	toInt64 () const
std::string	toString () const
std::string	to_string () const
std::string	toHexString () const
std::vector< uint8_t >	toByteArray () const
BigInt	operator+ (const BigInt &rhs) const
BigInt	operator- (const BigInt &rhs) const
BigInt	operator* (const BigInt &rhs) const
BigInt	operator/ (const BigInt &rhs) const
BigInt	operator% (const BigInt &rhs) const
BigInt &	operator++ ()
BigInt	operator++ (int)
BigInt &	operator-- ()
BigInt	operator-- (int)
BigInt &	operator= (const BigInt &)
BigInt &	operator= (BigInt &&a)
bool	operator< (const BigInt &) const
bool	operator<= (const BigInt &) const
bool	operator== (const BigInt &) const
bool	operator> (const BigInt &) const
bool	operator>= (const BigInt &) const
int	compare (const BigInt &) const
BigInt	pow (unsigned short p) const
unsigned long	getBitSize () const
bool	isNegative () const
bool	isPositive () const
bool	isZero () const
BigInt	negative () const
BigInt	positive () const
BigInt &	assignI64 (int64_t value)
template<typename T >
BigInt &	assignScalar (T value)

Static Public Member Functions
static LIBCORE_EXPORT BigInt *	from_hex (const std::string &str)
static LIBCORE_EXPORT BigInt	fromHex (const std::string &str)
static LIBCORE_EXPORT BigInt *	from_dec (const std::string &str)
static LIBCORE_EXPORT BigInt	fromDecimal (const std::string &str)
static LIBCORE_EXPORT BigInt	fromString (const std::string &str)
template<typename T >
static BigInt	fromScalar (T value)

Static Public Attributes
static LIBCORE_EXPORT const BigInt	ZERO = BigInt(0)
static LIBCORE_EXPORT const BigInt	ONE = BigInt(1)
static LIBCORE_EXPORT const BigInt	TEN = BigInt(10)
static LIBCORE_EXPORT const std::string	DIGITS = std::string("0123456789abcdefghijklmnopqrstuvwxyz")
static LIBCORE_EXPORT const int	MIN_RADIX = 2
static LIBCORE_EXPORT const int	MAX_RADIX = 36

Detailed Description

Helper class used to deal with really big integers.

Constructor & Destructor Documentation

BigInt() [1/3]

ledger::core::BigInt::BigInt	(	const void *	data,
		size_t	length,
		bool	negative
	)

Initializes a new BigInt with the given big endian data.

Parameters

data	The big integer data formatted in big endian
length	The length of the data
negative	true if the number is negative false otherwise

BigInt() [2/3]

ledger::core::BigInt::BigInt ( int  value )

explicit

Initializes a new BigInt with the runtime int.

Parameters

value
bits

Returns

BigInt() [3/3]

ledger::core::BigInt::BigInt

(

const std::string &

str

)

Initializes a new BigInt with the given string representation.

Parameters

str

Returns

Member Function Documentation

from_dec()

BigInt * ledger::core::BigInt::from_dec ( const std::string &  str )

static

Creates a new BigInt from the given decimal encoded string.

Parameters

str	The number encoded in decimal (e.g. "125")

Returns

from_hex()

BigInt * ledger::core::BigInt::from_hex ( const std::string &  str )

static

Creates a new BigInt from the given hexadecimal encoded string.

Parameters

str	The number encoded in hexadecimal (e.g. "E0A1B3")

Returns

An instance of BigInt

fromDecimal()

BigInt ledger::core::BigInt::fromDecimal ( const std::string &  str )

static

Creates a new BigInt from the given decimal encoded string.

Parameters

str	The number encoded in decimal (e.g. "125")

Returns

fromHex()

BigInt ledger::core::BigInt::fromHex ( const std::string &  str )

static

Creates a new BigInt from the given hexadecimal encoded string.

Parameters

str	The number encoded in hexadecimal (e.g. "E0A1B3")

toByteArray()

std::vector< uint8_t > ledger::core::BigInt::toByteArray

(

)

const

Serializes the BigInt into a Big Endian byte array.

Returns

toHexString()

std::string ledger::core::BigInt::toHexString

(

)

const

Serializes the BigInt into a hexadecimal std::string.

Returns

toInt()

int ledger::core::BigInt::toInt

(

)

const

Converts the BigInt to int

Returns

toString()

std::string ledger::core::BigInt::toString

(

)

const

Serializes the BigInt into a decimal std::string.

Parameters

str
radix

Returns

toUnsignedInt()

unsigned int ledger::core::BigInt::toUnsignedInt

(

)

const

Converts the BigInt to unsigned int

Returns

Member Data Documentation

DIGITS

const std::string ledger::core::BigInt::DIGITS = std::string("0123456789abcdefghijklmnopqrstuvwxyz")

static

Available digits for conversion to and from strings.

MAX_RADIX

const int ledger::core::BigInt::MAX_RADIX = 36

static

The minimum radix available for conversion to and from strings.

MIN_RADIX

const int ledger::core::BigInt::MIN_RADIX = 2

static

The maximum radix available for conversion to and from strings.

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The documentation for this class was generated from the following files:

• src/math/BigInt.h
• src/math/BigInt.cpp