decimal

package

v0.0.0-...-f5948c0 Latest Latest Go to latest Published: Aug 23, 2023 License: MIT Imports: 8 Imported by: 0

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Repository

github.com/hopeio/zeta

Documentation ¶

Index ¶

type Decimal
type Decimal1
- func New1(Dec string) (dec Decimal1, err error)
type Decimal11
- func New11(Dec string, eff int) (dec *Decimal11, err error)
- func (x *Decimal11) Add(v *Decimal11) *Decimal11
- func (x *Decimal11) String() string
type Decimal2
type Decimal3
- func New3(mant uint64, exp int, neg bool) *Decimal3
- func New3FromStr(str string) (Decimal3, error)
type RoundingMode

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Decimal ¶

type Decimal struct {
	// contains filtered or unexported fields
}

func (*Decimal) Compose ¶

func (d *Decimal) Compose(form byte, negative bool, coefficient []byte, exponent int32) error

func (*Decimal) Decompose ¶

func (d *Decimal) Decompose(buf []byte) (form byte, negative bool, coefficient []byte, exponent int32)

func (*Decimal) String ¶

func (d *Decimal) String() string

type Decimal1 ¶

type Decimal1 struct {
	Int uint64
	// contains filtered or unexported fields
}

放弃，省空间，但计算时间浪费，来回不停转字符串

func New1 ¶

func New1(Dec string) (dec Decimal1, err error)

func (*Decimal1) Add ¶

func (d *Decimal1) Add(v Decimal1) Decimal1

func (*Decimal1) Dec ¶

func (d *Decimal1) Dec() string

func (*Decimal1) DecInt ¶

func (d *Decimal1) DecInt() uint64

func (*Decimal1) Multi ¶

func (d *Decimal1) Multi(v Decimal1)

func (*Decimal1) SetDec ¶

func (d *Decimal1) SetDec(dec string) error

func (*Decimal1) SetDecInt ¶

func (d *Decimal1) SetDecInt(dec uint64) error

func (Decimal1) String ¶

func (d Decimal1) String() string

type Decimal11 ¶

type Decimal11 struct {
	Int uint64
	// contains filtered or unexported fields
}

func New11 ¶

func New11(Dec string, eff int) (dec *Decimal11, err error)

func (*Decimal11) Add ¶

func (x *Decimal11) Add(v *Decimal11) *Decimal11

func (*Decimal11) String ¶

func (x *Decimal11) String() string

type Decimal2 ¶

type Decimal2 string

example:"123456789.987654321"

type Decimal3 ¶

type Decimal3 struct {
	// contains filtered or unexported fields
}

func New3 ¶

func New3(mant uint64, exp int, neg bool) *Decimal3

func New3FromStr ¶

func New3FromStr(str string) (Decimal3, error)

func (*Decimal3) Add ¶

func (x *Decimal3) Add(v Decimal3) *Decimal3

func (*Decimal3) Compose ¶

func (x *Decimal3) Compose(form byte, negative bool, mant []byte, exponent int32) error

func (*Decimal3) Decompose ¶

func (x *Decimal3) Decompose(buf []byte) (form byte, negative bool, mant []byte, exponent int32)

func (*Decimal3) Div ¶

func (x *Decimal3) Div(v Decimal3, mode RoundingMode) *Decimal3

func (*Decimal3) DivInt ¶

func (x *Decimal3) DivInt(v int, mode RoundingMode) *Decimal3

func (*Decimal3) Float ¶

func (x *Decimal3) Float() float64

func (*Decimal3) Mul ¶

func (x *Decimal3) Mul(v Decimal3) *Decimal3

func (*Decimal3) Scan ¶

func (x *Decimal3) Scan(raw interface{}) error

func (Decimal3) String ¶

func (x Decimal3) String() string

func (x *Decimal3) Div2(v Decimal3) *Decimal3 {
	f1:=big.NewFloat(x.Float())
	f2:=big.NewFloat(v.Float())
	f3,_:=f1.Quo(f1,f2).Float64()
}

func (*Decimal3) Sub ¶

func (x *Decimal3) Sub(v Decimal3) *Decimal3

func (Decimal3) Value ¶

func (x Decimal3) Value() (driver.Value, error)

type RoundingMode ¶

type RoundingMode uint8

const (
	UP RoundingMode = iota
	DOWN
	HALFUP
)

Source Files ¶

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