util

package
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Published: Dec 3, 2020 License: MIT Imports: 9 Imported by: 140

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Index

Constants

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const Uint160Size = 20

Uint160Size is the size of Uint160 in bytes.

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const Uint256Size = 32

Uint256Size is the size of Uint256 in bytes.

Variables

This section is empty.

Functions

func ArrayReverse

func ArrayReverse(b []byte) []byte

ArrayReverse returns a reversed version of the given byte slice.

func FixedNFromString

func FixedNFromString(s string, precision int) (int64, error)

FixedNFromString parses s which must be a fixed point number with precision 10^-d.

Types

type Fixed8

type Fixed8 int64

Fixed8 represents a fixed-point number with precision 10^-8.

func Fixed8FromFloat

func Fixed8FromFloat(val float64) Fixed8

Fixed8FromFloat returns a new Fixed8 type multiplied by decimals.

func Fixed8FromInt64

func Fixed8FromInt64(val int64) Fixed8

Fixed8FromInt64 returns a new Fixed8 type multiplied by decimals.

func Fixed8FromString

func Fixed8FromString(s string) (Fixed8, error)

Fixed8FromString parses s which must be a fixed point number with precision up to 10^-8

func Satoshi

func Satoshi() Fixed8

Satoshi defines the value of a 'Satoshi'.

func (Fixed8) Add

func (f Fixed8) Add(g Fixed8) Fixed8

Add implements Fixd8 addition operator.

func (Fixed8) CompareTo

func (f Fixed8) CompareTo(g Fixed8) int

CompareTo returns the difference between the f and g. difference < 0 implies f < g. difference = 0 implies f = g. difference > 0 implies f > g.

func (*Fixed8) DecodeBinary

func (f *Fixed8) DecodeBinary(r *io.BinReader)

DecodeBinary implements the io.Serializable interface.

func (Fixed8) Div

func (f Fixed8) Div(i int64) Fixed8

Div implements Fixd8 division operator.

func (*Fixed8) EncodeBinary

func (f *Fixed8) EncodeBinary(w *io.BinWriter)

EncodeBinary implements the io.Serializable interface.

func (Fixed8) Equal

func (f Fixed8) Equal(g Fixed8) bool

Equal implements Fixd8 == operator.

func (Fixed8) FloatValue

func (f Fixed8) FloatValue() float64

FloatValue returns the original value representing Fixed8 as float64.

func (Fixed8) FractionalValue

func (f Fixed8) FractionalValue() int32

FractionalValue returns decimal part of the original value. It has the same sign as f, so that f = f.IntegralValue() + f.FractionalValue().

func (Fixed8) GreaterThan

func (f Fixed8) GreaterThan(g Fixed8) bool

GreaterThan implements Fixd8 < operator.

func (Fixed8) IntegralValue

func (f Fixed8) IntegralValue() int64

IntegralValue returns integer part of the original value representing Fixed8 as int64.

func (Fixed8) LessThan

func (f Fixed8) LessThan(g Fixed8) bool

LessThan implements Fixd8 < operator.

func (Fixed8) MarshalJSON

func (f Fixed8) MarshalJSON() ([]byte, error)

MarshalJSON implements the json marshaller interface.

func (Fixed8) MarshalYAML

func (f Fixed8) MarshalYAML() (interface{}, error)

MarshalYAML implements the yaml marshaller interface.

func (Fixed8) String

func (f Fixed8) String() string

String implements the Stringer interface.

func (Fixed8) Sub

func (f Fixed8) Sub(g Fixed8) Fixed8

Sub implements Fixd8 subtraction operator.

func (*Fixed8) UnmarshalJSON

func (f *Fixed8) UnmarshalJSON(data []byte) error

UnmarshalJSON implements the json unmarshaller interface.

func (*Fixed8) UnmarshalYAML

func (f *Fixed8) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml unmarshaler interface.

type Uint160

type Uint160 [Uint160Size]uint8

Uint160 is a 20 byte long unsigned integer.

func Uint160DecodeBytesBE

func Uint160DecodeBytesBE(b []byte) (u Uint160, err error)

Uint160DecodeBytesBE attempts to decode the given bytes into an Uint160.

func Uint160DecodeBytesLE

func Uint160DecodeBytesLE(b []byte) (u Uint160, err error)

Uint160DecodeBytesLE attempts to decode the given bytes in little-endian into an Uint160.

func Uint160DecodeStringBE

func Uint160DecodeStringBE(s string) (Uint160, error)

Uint160DecodeStringBE attempts to decode the given string into an Uint160.

func Uint160DecodeStringLE

func Uint160DecodeStringLE(s string) (Uint160, error)

Uint160DecodeStringLE attempts to decode the given string in little-endian hex encoding into an Uint160.

func (Uint160) BytesBE

func (u Uint160) BytesBE() []byte

BytesBE returns a big-endian byte representation of u.

func (Uint160) BytesLE

func (u Uint160) BytesLE() []byte

BytesLE returns a little-endian byte representation of u.

func (Uint160) Equals

func (u Uint160) Equals(other Uint160) bool

Equals returns true if both Uint256 values are the same.

func (Uint160) Less

func (u Uint160) Less(other Uint160) bool

Less returns true if this value is less than given Uint160 value. It's primarily intended to be used for sorting purposes.

func (Uint160) MarshalJSON

func (u Uint160) MarshalJSON() ([]byte, error)

MarshalJSON implements the json marshaller interface.

func (Uint160) Reverse

func (u Uint160) Reverse() (r Uint160)

Reverse returns reversed representation of u.

func (Uint160) String

func (u Uint160) String() string

String implements the stringer interface.

func (Uint160) StringBE

func (u Uint160) StringBE() string

StringBE returns string representations of u with big-endian byte order.

func (Uint160) StringLE

func (u Uint160) StringLE() string

StringLE returns string representations of u with little-endian byte order.

func (*Uint160) UnmarshalJSON

func (u *Uint160) UnmarshalJSON(data []byte) (err error)

UnmarshalJSON implements the json unmarshaller interface.

type Uint256

type Uint256 [Uint256Size]uint8

Uint256 is a 32 byte long unsigned integer.

func Uint256DecodeBytesBE

func Uint256DecodeBytesBE(b []byte) (u Uint256, err error)

Uint256DecodeBytesBE attempts to decode the given string (in BE representation) into an Uint256.

func Uint256DecodeBytesLE

func Uint256DecodeBytesLE(b []byte) (u Uint256, err error)

Uint256DecodeBytesLE attempts to decode the given string (in LE representation) into an Uint256.

func Uint256DecodeStringBE

func Uint256DecodeStringBE(s string) (u Uint256, err error)

Uint256DecodeStringBE attempts to decode the given string (in BE representation) into an Uint256.

func Uint256DecodeStringLE

func Uint256DecodeStringLE(s string) (u Uint256, err error)

Uint256DecodeStringLE attempts to decode the given string (in LE representation) into an Uint256.

func (Uint256) BytesBE

func (u Uint256) BytesBE() []byte

BytesBE returns a byte slice representation of u.

func (Uint256) BytesLE

func (u Uint256) BytesLE() []byte

BytesLE return a little-endian byte representation of u.

func (Uint256) CompareTo

func (u Uint256) CompareTo(other Uint256) int

CompareTo compares two Uint256 with each other. Possible output: 1, -1, 0

1 implies u > other.

-1 implies u < other.

0 implies  u = other.

func (*Uint256) DecodeBinary

func (u *Uint256) DecodeBinary(r *io.BinReader)

DecodeBinary implements io.Serializable interface.

func (*Uint256) EncodeBinary

func (u *Uint256) EncodeBinary(w *io.BinWriter)

EncodeBinary implements io.Serializable interface.

func (Uint256) Equals

func (u Uint256) Equals(other Uint256) bool

Equals returns true if both Uint256 values are the same.

func (Uint256) MarshalJSON

func (u Uint256) MarshalJSON() ([]byte, error)

MarshalJSON implements the json marshaller interface.

func (Uint256) Reverse

func (u Uint256) Reverse() Uint256

Reverse reverses the Uint256 object

func (Uint256) String

func (u Uint256) String() string

String implements the stringer interface.

func (Uint256) StringBE

func (u Uint256) StringBE() string

StringBE produces string representation of Uint256 with BE byte order.

func (Uint256) StringLE

func (u Uint256) StringLE() string

StringLE produces string representation of Uint256 with LE byte order.

func (*Uint256) UnmarshalJSON

func (u *Uint256) UnmarshalJSON(data []byte) (err error)

UnmarshalJSON implements the json unmarshaller interface.

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