extended_type

package
v0.0.6 Latest Latest
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 Go to latest Published: Apr 26, 2022 License: MIT Imports: 6 Imported by: 2

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Constants

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Variables

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var MaxUint128 = New(math.MaxUint64, math.MaxUint64)

MaxUint128 is the largest possible uint128 value.

Functions

This section is empty.

Types

type Uint128 

type Uint128 struct {
	Lo, Hi uint64
}

A Uint128 is an unsigned 128-bit number. 

var ZeroUint128 Uint128

ZeroUint128 is a zero-valued uint128.

func From64 

func From64(v uint64) Uint128

From64 converts v to a Uint128 value.

func FromBig 

func FromBig(i *big.Int) (u Uint128)

FromBig converts i to a Uint128 value. It panics if i is negative or overflows 128 bits.

func FromBytes 

func FromBytes(b []byte) Uint128

FromBytes converts b to a Uint128 value.

func FromString 

func FromString(s string) (u Uint128, err error)

FromString parses s as a Uint128 value.

func New 

func New(lo, hi uint64) Uint128

New returns the Uint128 value (lo,hi).

func (Uint128) Add 

func (u Uint128) Add(v Uint128) Uint128

Add returns u+v. No error, if the result overflows

func (Uint128) Add64 

func (u Uint128) Add64(v uint64) Uint128

Add64 returns u+v. No error, if the result overflows

func (Uint128) And 

func (u Uint128) And(v Uint128) Uint128

And returns u&v.

func (Uint128) And64 

func (u Uint128) And64(v uint64) Uint128

And64 returns u&v.

func (Uint128) Big 

func (u Uint128) Big() *big.Int

Big returns u as a *big.Int.

func (Uint128) Cmp 

func (u Uint128) Cmp(v Uint128) int

Cmp compares u and v and returns: 

-1 if u <  v
 0 if u == v
+1 if u >  v

func (Uint128) Cmp64 

func (u Uint128) Cmp64(v uint64) int

Cmp64 compares u and v and returns: 

-1 if u <  v
 0 if u == v
+1 if u >  v

func (Uint128) Div 

func (u Uint128) Div(v Uint128) Uint128

Div returns u/v.

func (Uint128) Div64 

func (u Uint128) Div64(v uint64) Uint128

Div64 returns u/v. No error, if the result overflows

func (Uint128) Equals 

func (u Uint128) Equals(v Uint128) bool

Equals returns true if u == v.

Uint128 values can be compared directly with ==, but use of the Equals method is preferred for consistency.

func (Uint128) Equals64 

func (u Uint128) Equals64(v uint64) bool

Equals64 returns true if u == v.

func (Uint128) Format 

func (u Uint128) Format(f fmt.State, verb rune)

func (Uint128) IsZero 

func (u Uint128) IsZero() bool

IsZero returns true if u == 0.

func (Uint128) LeadingZeros 

func (u Uint128) LeadingZeros() int

LeadingZeros returns the number of leading zero bits in u; the result is 128 for u == 0.

func (Uint128) Len 

func (u Uint128) Len() int

Len returns the minimum number of bits required to represent u; the result is 0 for u == 0.

func (Uint128) Lsh 

func (u Uint128) Lsh(n uint) (s Uint128)

Lsh returns u<<n.

func (Uint128) Mod 

func (u Uint128) Mod(v Uint128) (r Uint128)

Mod returns r = u%v.

func (Uint128) Mod64 

func (u Uint128) Mod64(v uint64) (r uint64)

Mod64 returns r = u%v.

func (Uint128) Mul 

func (u Uint128) Mul(v Uint128) Uint128

Mul returns u*v. No error, if the result overflows

func (Uint128) Mul64 

func (u Uint128) Mul64(v uint64) Uint128

Mul64 returns u*v. No error, if the result overflows

func (Uint128) OnesCount 

func (u Uint128) OnesCount() int

OnesCount returns the number of one bits ("population count") in u.

func (Uint128) Or 

func (u Uint128) Or(v Uint128) Uint128

Or returns u|v.

func (Uint128) Or64 

func (u Uint128) Or64(v uint64) Uint128

Or64 returns u|v.

func (Uint128) PutBytes 

func (u Uint128) PutBytes(b []byte)

PutBytes stores u in b in little-endian order. It panics if len(b) < 16.

func (Uint128) QuoRem 

func (u Uint128) QuoRem(v Uint128) (q, r Uint128)

QuoRem returns q = u/v and r = u%v.

func (Uint128) QuoRem64 

func (u Uint128) QuoRem64(v uint64) (q Uint128, r uint64)

QuoRem64 returns q = u/v and r = u%v.

func (Uint128) Reverse 

func (u Uint128) Reverse() Uint128

Reverse returns the value of u with its bits in reversed order.

func (Uint128) ReverseBytes 

func (u Uint128) ReverseBytes() Uint128

ReverseBytes returns the value of u with its bytes in reversed order.

func (Uint128) RotateLeft 

func (u Uint128) RotateLeft(k int) Uint128

RotateLeft returns the value of u rotated left by (k mod 128) bits.

func (Uint128) RotateRight 

func (u Uint128) RotateRight(k int) Uint128

RotateRight returns the value of u rotated left by (k mod 128) bits.

func (Uint128) Rsh 

func (u Uint128) Rsh(n uint) (s Uint128)

Rsh returns u>>n.

func (*Uint128) Scan 

func (u *Uint128) Scan(s fmt.ScanState, ch rune) error

Scan implements fmt.Scanner.

func (Uint128) String 

func (u Uint128) String() string

String returns the base-10 representation of u as a string.

func (Uint128) Sub 

func (u Uint128) Sub(v Uint128) Uint128

Sub returns u-v. No error, if the result overflows

func (Uint128) Sub64 

func (u Uint128) Sub64(v uint64) Uint128

Sub64 returns u-v. No error, if the result overflows

func (*Uint128) ToBytes added in v0.0.4 

func (u *Uint128) ToBytes() []byte

ToBytes transform Uint128 to byte slice

func (Uint128) TrailingZeros 

func (u Uint128) TrailingZeros() int

TrailingZeros returns the number of trailing zero bits in u; the result is 128 for u == 0.

func (Uint128) Xor 

func (u Uint128) Xor(v Uint128) Uint128

Xor returns u^v.

func (Uint128) Xor64 

func (u Uint128) Xor64(v uint64) Uint128

Xor64 returns u^v.

Source Files

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