fixedpoint

package
v0.0.0-...-ce66ebf Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jul 15, 2023 License: AGPL-3.0 Imports: 8 Imported by: 0

Documentation

Index

Constants

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const DefaultPow = 1e8
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const DefaultPrecision = 8
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const MaxPrecision = 12
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const NegInf = Value(math.MinInt64)
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const NegOne = Value(-1e8)
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const One = Value(1e8)
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const PosInf = Value(math.MaxInt64)
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const Zero = Value(0)

Variables

View Source 
var ErrPrecisionLoss = errors.New("precision loss")

Functions

func Compare 

func Compare(x, y Value) int

func Count 

func Count(values []Value, counter Counter) int

func Equal 

func Equal(x, y Value) bool

func NegativeTester 

func NegativeTester(value Value) bool

func Parse 

func Parse(input string) (num int64, numDecimalPoints int, err error)

func PositiveTester 

func PositiveTester(value Value) bool

Types

type Ascending 

type Ascending []Value

func (Ascending) Len 

func (s Ascending) Len() int

func (Ascending) Less 

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

func (Ascending) Swap 

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

type Counter 

type Counter func(a Value) bool

type Descending 

type Descending []Value

func (Descending) Len 

func (s Descending) Len() int

func (Descending) Less 

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

func (Descending) Swap 

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

type Reducer 

type Reducer func(prev, curr Value) Value

type RoundingMode 

type RoundingMode int
const (
	Up RoundingMode = iota
	Down
	HalfUp
)

type Slice 

type Slice []Value

func (Slice) Len 

func (s Slice) Len() int

Defaults to ascending sort

func (Slice) Less 

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

func (Slice) Reduce 

func (s Slice) Reduce(reducer Reducer, a ...Value) Value

func (Slice) Swap 

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

type Tester 

type Tester func(value Value) bool

type Value 

type Value int64
var (
	Two   Value = NewFromInt(2)
	Three Value = NewFromInt(3)
	Four  Value = NewFromInt(4)
)

func Abs 

func Abs(a Value) Value

func Avg 

func Avg(values []Value) (avg Value)

func Clamp 

func Clamp(x, min, max Value) Value

func Div 

func Div(x, y Value) Value

func Filter 

func Filter(values []Value, f Tester) (slice []Value)

func Max 

func Max(a, b Value) Value

func Min 

func Min(a, b Value) Value

func Mul 

func Mul(x, y Value) Value

func Must 

func Must(v Value, err error) Value

func MustNewFromBytes 

func MustNewFromBytes(input []byte) (v Value)

func MustNewFromString 

func MustNewFromString(input string) Value

func NewFromBytes 

func NewFromBytes(input []byte) (Value, error)

func NewFromFloat 

func NewFromFloat(val float64) Value

func NewFromInt 

func NewFromInt(val int64) Value

func NewFromString 

func NewFromString(input string) (Value, error)

func Reduce 

func Reduce(values []Value, reducer Reducer, a ...Value) Value

func Sum 

func Sum(values []Value) (s Value)

func SumReducer 

func SumReducer(prev, curr Value) Value

func (Value) Abs 

func (v Value) Abs() Value

func (Value) Add 

func (v Value) Add(v2 Value) Value

func (*Value) AtomicAdd 

func (v *Value) AtomicAdd(v2 Value)

func (*Value) AtomicLoad 

func (v *Value) AtomicLoad() Value

func (Value) Ceil 

func (v Value) Ceil() Value

func (Value) Clamp 

func (x Value) Clamp(min, max Value) Value

func (Value) Compare 

func (x Value) Compare(y Value) int

func (Value) Div 

func (v Value) Div(v2 Value) Value

func (Value) Eq 

func (x Value) Eq(y Value) bool

func (Value) Float64 

func (v Value) Float64() float64

func (Value) Floor 

func (v Value) Floor() Value

func (Value) FormatPercentage 

func (v Value) FormatPercentage(prec int) string

func (Value) FormatString 

func (v Value) FormatString(prec int) string

func (Value) Int 

func (v Value) Int() int

func (Value) Int64 

func (v Value) Int64() int64

func (Value) IsInf 

func (a Value) IsInf() bool

func (Value) IsZero 

func (v Value) IsZero() bool

func (Value) MarshalJSON 

func (v Value) MarshalJSON() ([]byte, error)

func (Value) MarshalYAML 

func (v Value) MarshalYAML() (interface{}, error)

func (Value) Mul 

func (v Value) Mul(v2 Value) Value

func (Value) MulExp 

func (a Value) MulExp(exp int) Value

func (Value) Neg 

func (v Value) Neg() Value

func (Value) NumFractionalDigits 

func (a Value) NumFractionalDigits() int

TODO: speedup

func (Value) NumIntDigits 

func (a Value) NumIntDigits() int

func (Value) Percentage 

func (v Value) Percentage() string

func (Value) Round 

func (v Value) Round(r int, mode RoundingMode) Value

func (*Value) Scan 

func (v *Value) Scan(src interface{}) error

func (Value) Sign 

func (v Value) Sign() int

TODO inf

func (Value) SignedPercentage 

func (v Value) SignedPercentage() string

func (Value) String 

func (v Value) String() string

func (Value) Sub 

func (v Value) Sub(v2 Value) Value

func (Value) Trunc 

func (v Value) Trunc() Value

Trunc returns the integer portion (truncating any fractional part)

func (*Value) UnmarshalJSON 

func (v *Value) UnmarshalJSON(data []byte) error

func (*Value) UnmarshalYAML 

func (v *Value) UnmarshalYAML(unmarshal func(a interface{}) error) (err error)

func (Value) Value 

func (v Value) Value() (driver.Value, error)

Source Files

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