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gotypes
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Decimal
decimal types for MySQL/PostgreSQL/MSSQL/Sqlite and MongoDB (official or mgo.v2 driver)
Documentation
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Index ¶
- type Decimal
- func (d Decimal) Abs() Decimal
- func (d Decimal) Add(d2 Decimal) Decimal
- func (d Decimal) Cmp(d2 Decimal) int
- func (d Decimal) Cos() Decimal
- func (d Decimal) Div(d2 Decimal) Decimal
- func (d Decimal) Equal(d2 Decimal) bool
- func (d Decimal) Float64() (f float64)
- func (d *Decimal) FromFloat(v float64)
- func (d *Decimal) FromInt(v int64)
- func (d *Decimal) FromString(v string)
- func (d Decimal) GetBSON() (interface{}, error)
- func (d Decimal) GreaterThan(d2 Decimal) bool
- func (d Decimal) GreaterThanOrEqual(d2 Decimal) bool
- func (d Decimal) IntPart() int64
- func (d Decimal) IsNegative() bool
- func (d Decimal) IsPositive() bool
- func (d Decimal) IsZero() bool
- func (d Decimal) LessThan(d2 Decimal) bool
- func (d Decimal) LessThanOrEqual(d2 Decimal) bool
- func (d Decimal) Marshal() ([]byte, error)
- func (d Decimal) MarshalBSON() ([]byte, error)
- func (d Decimal) MarshalBSONValue() (bsontype.Type, []byte, error)
- func (d Decimal) MarshalBinary() (data []byte, err error)
- func (d Decimal) MarshalJSON() ([]byte, error)
- func (d Decimal) MarshalText() (text []byte, err error)
- func (d Decimal) Max(rest ...Decimal) Decimal
- func (d Decimal) Min(rest ...Decimal) Decimal
- func (d Decimal) Mod(d2 Decimal) Decimal
- func (d Decimal) Mul(d2 Decimal) Decimal
- func (d Decimal) Neg() Decimal
- func (d Decimal) Pow(d2 Decimal) Decimal
- func (d Decimal) Round(places int32) Decimal
- func (d *Decimal) Scan(src interface{}) error
- func (d *Decimal) SetBSON(raw mgobson.Raw) error
- func (d Decimal) Sign() int
- func (d Decimal) Sin() Decimal
- func (d Decimal) String() string
- func (d Decimal) StringFixed(places int32) string
- func (d Decimal) StringScaled(exp int32) string
- func (d Decimal) Sub(d2 Decimal) Decimal
- func (d Decimal) Sum(rest ...Decimal) Decimal
- func (d Decimal) Tan() Decimal
- func (d Decimal) Truncate(precision int32) Decimal
- func (d *Decimal) Unmarshal(data []byte) error
- func (d *Decimal) UnmarshalBSON(data []byte) error
- func (d *Decimal) UnmarshalBSONValue(_ bsontype.Type, data []byte) error
- func (d *Decimal) UnmarshalBinary(data []byte) error
- func (d *Decimal) UnmarshalJSON(decimalBytes []byte) error
- func (d *Decimal) UnmarshalText(text []byte) error
- func (d Decimal) Value() (driver.Value, error)
Constants ¶
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Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Decimal ¶
type Decimal struct {
// contains filtered or unexported fields
}
func NewDecimal ¶
func NewDecimal(v interface{}) (d Decimal)
func (Decimal) Cmp ¶
Cmp compares the numbers represented by d and d2 and returns:
-1 if d < d2 0 if d == d2 +1 if d > d2
func (Decimal) Div ¶
Div returns d / d2. If it doesn't divide exactly, the result will have DivisionPrecision digits after the decimal point.
func (Decimal) Float64 ¶
Float64 returns the nearest float64 value for d and a bool indicating whether f represents d exactly.
func (*Decimal) FromString ¶
func (Decimal) GreaterThan ¶
GreaterThan (GT) returns true when d is greater than d2.
func (Decimal) GreaterThanOrEqual ¶
GreaterThanOrEqual (GTE) returns true when d is greater than or equal to d2.
func (Decimal) LessThanOrEqual ¶
LessThanOrEqual (LTE) returns true when d is less than or equal to d2.
func (Decimal) MarshalBSON ¶
MarshalBSON implements the bson.Marshaler interface.
func (Decimal) MarshalBSONValue ¶
MarshalBSON implements the bson.Marshaler interface.
func (Decimal) MarshalBinary ¶
MarshalBinary implements the encoding.BinaryMarshaler interface.
func (Decimal) MarshalJSON ¶
MarshalJSON implements the json.Marshaler interface.
func (Decimal) MarshalText ¶
MarshalText implements the encoding.TextMarshaler interface for XML serialization.
func (Decimal) Max ¶
Max returns the largest Decimal that was passed in the arguments. To call this function with an array, you must do: This makes it harder to accidentally call Max with 0 arguments.
func (Decimal) Min ¶
Min returns the smallest Decimal that was passed in the arguments. To call this function with an array, you must do: This makes it harder to accidentally call Min with 0 arguments.
func (Decimal) Round ¶
Round rounds the decimal to places decimal places. If places < 0, it will round the integer part to the nearest 10^(-places).
Example:
NewFromFloat(5.45).Round(1).String() // output: "5.5" NewFromFloat(545).Round(-1).String() // output: "550"
func (Decimal) String ¶
String returns the string representation of the decimal with the fixed point.
Example:
d := New(-12345, -3) println(d.String())
Output:
-12.345
func (Decimal) StringFixed ¶
StringFixed returns a rounded fixed-point string with places digits after the decimal point.
Example:
NewFromFloat(0).StringFixed(2) // output: "0.00" NewFromFloat(0).StringFixed(0) // output: "0" NewFromFloat(5.45).StringFixed(0) // output: "5" NewFromFloat(5.45).StringFixed(1) // output: "5.5" NewFromFloat(5.45).StringFixed(2) // output: "5.45" NewFromFloat(5.45).StringFixed(3) // output: "5.450" NewFromFloat(545).StringFixed(-1) // output: "550"
func (Decimal) StringScaled ¶
StringScaled first scales the decimal then calls .String() on it. NOTE: buggy, unintuitive, and DEPRECATED! Use StringFixed instead.
func (Decimal) Truncate ¶
Truncate truncates off digits from the number, without rounding.
NOTE: precision is the last digit that will not be truncated (must be >= 0).
Example:
decimal.NewFromString("123.456").Truncate(2).String() // "123.45"
func (*Decimal) UnmarshalBSON ¶
func (*Decimal) UnmarshalBSONValue ¶
UnmarshalBSON implements the bson.Unmarshaler interface.
func (*Decimal) UnmarshalBinary ¶
UnmarshalBinary implements the encoding.BinaryUnmarshaler interface. As a string representation is already used when encoding to text, this method stores that string as []byte
func (*Decimal) UnmarshalJSON ¶
UnmarshalJSON implements the json.Unmarshaler interface.
func (*Decimal) UnmarshalText ¶
UnmarshalText implements the encoding.TextUnmarshaler interface for XML deserialization.
Source Files