bigfloat

package
v0.7.11 Latest Latest
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 Go to latest Published: Jun 26, 2019 License: MIT Imports: 7 Imported by: 0

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Constants

View Source 
const (
	ToNearestEven big.RoundingMode = iota // == IEEE 754-2008 roundTiesToEven
	ToNearestAway                         // == IEEE 754-2008 roundTiesToAway
	ToZero                                // == IEEE 754-2008 roundTowardZero
	AwayFromZero                          // no IEEE 754-2008 equivalent
	ToNegativeInf                         // == IEEE 754-2008 roundTowardNegative
	ToPositiveInf                         // == IEEE 754-2008 roundTowardPositive
)

These constants define supported rounding modes.

View Source 
const AutoPrec = 512 // 256 -> decimal 32   512 -> decimal 78

Variables

This section is empty.

Functions

This section is empty.

Types

type BigFloat 

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

func Zero added in v0.7.7 

func Zero() *BigFloat

func (*BigFloat) Abs 

func (bf *BigFloat) Abs(a BigFloat)

func (*BigFloat) Add 

func (bf *BigFloat) Add(a BigFloat, b BigFloat)

@todo calc pointer param

func (*BigFloat) BF 

func (bf *BigFloat) BF() big.Float

func (*BigFloat) Ceil added in v0.5.7 

func (bf *BigFloat) Ceil() (*BigFloat, error)

func (*BigFloat) Cmp 

func (bf *BigFloat) Cmp(a BigFloat) int

func (*BigFloat) Convert added in v0.5.7 

func (bf *BigFloat) Convert(f *big.Float) error

func (*BigFloat) Copy added in v0.5.7 

func (bf *BigFloat) Copy(newBf *BigFloat) error

func (*BigFloat) CreateFromString 

func (bf *BigFloat) CreateFromString(s string, mode big.RoundingMode) error

func (*BigFloat) Div 

func (bf *BigFloat) Div(a BigFloat, b BigFloat)

func (*BigFloat) Float added in v0.5.7 

func (bf *BigFloat) Float() *big.Float

func (*BigFloat) Floor added in v0.5.7 

func (bf *BigFloat) Floor() (*BigFloat, error)

func (BigFloat) MarshalBinary added in v0.7.4 

func (bf BigFloat) MarshalBinary() (data []byte, err error)

func (BigFloat) MarshalJSON 

func (bf BigFloat) MarshalJSON() ([]byte, error)

@todo xml protobuf ...

func (*BigFloat) Mul 

func (bf *BigFloat) Mul(a BigFloat, b BigFloat)

func (*BigFloat) Round added in v0.5.7 

func (bf *BigFloat) Round(decimal uint, roundType RoundType) (*BigFloat, error)

func (*BigFloat) Scan 

func (bf *BigFloat) Scan(src interface{}) error

func (*BigFloat) SetInt added in v0.5.7 

func (bf *BigFloat) SetInt(i *bigint.BigInt, mode big.RoundingMode) error

func (*BigFloat) String 

func (bf *BigFloat) String() string

func (*BigFloat) Sub 

func (bf *BigFloat) Sub(a BigFloat, b BigFloat)

func (*BigFloat) UnmarshalBinary added in v0.7.4 

func (bf *BigFloat) UnmarshalBinary(data []byte) error

func (*BigFloat) UnmarshalJSON added in v0.6.5 

func (bf *BigFloat) UnmarshalJSON(src []byte) error

func (BigFloat) Value 

func (bf BigFloat) Value() (driver.Value, error)

type RoundType added in v0.5.7 

type RoundType byte
const (
	RoundUpAlways RoundType = iota
	RoundDown
	RoundUpAuto
)

type Slice added in v0.7.2 

type Slice []*BigFloat

func (Slice) Len added in v0.7.2 

func (s Slice) Len() int

func (Slice) Less added in v0.7.2 

func (s Slice) Less(i, j int) bool

func (Slice) Swap added in v0.7.2 

func (s Slice) Swap(i, j int)

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