IntUtils class

Utility class for integer-related operations and conversions.

Constructors

IntUtils()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

pi → double

no setter

Static Methods

bitlengthInBytes(int value, {bool sign = false}) → int

ceilDiv(int a, int b) → int

cos(num x) → double

ctSelectBool(bool a, bool b, bool choice) → bool

ctSelectInt(int a, int b, bool choice) → int

decodeVarint(List<int> byteint) → (int, int)

Decodes a variable-length byte array into an integer value according to Bitcoin's variable-length integer encoding scheme.

encodeVarint(int value) → List<int>

Encodes an integer into a variable-length byte array according to Bitcoin's variable-length integer encoding scheme.

exp(num x) → double

fromBytes(List<int> bytes, {Endian byteOrder = Endian.big, bool sign = false}) → int

Converts a list of bytes to an integer, following the given byte order. Uses native int math when safe; otherwise decodes via BigInt and checks isValidInt before converting back, throwing instead of silently losing precision.

fromBytes16(List<int> bytes, {Endian byteOrder = Endian.big, bool sign = false}) → int

fromBytes32(List<int> bytes, {Endian byteOrder = Endian.big, bool sign = false}) → int

fromBytes64(List<int> bytes, {Endian byteOrder = Endian.big, bool sign = false}) → int

fromBytes8(List<int> bytes, {Endian byteOrder = Endian.big, bool sign = false}) → int

log(num x) → double

max(int a, int b) → int

min(int a, int b) → int

parse(dynamic number, {bool allowHex = true}) → int

Parses a dynamic value number into an integer.

pow(num x, num exponent) → num

prependVarint(List<int> data) → List<int>

Prepends a variable-length integer encoding of the given data length to the provided data.

sqrt(num x) → double

toBinaryBool(int value, {int? bitLength}) → List<bool>

toBytes(int val, {int? length, Endian byteOrder = Endian.big, bool sign = false}) → List<int>

Converts an integer to a byte list with the given length and byte order. Pass sign: true to allow/encode negative values as two's complement. Length auto-sizing (when length is omitted) uses the same sign convention, so the result always round-trips correctly.

tryParse(dynamic number, {bool allowHex = true}) → int?

Tries to parse a dynamic value number into an integer, returning null if parsing fails.