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add functions IsPositive, IsNegative and IsZero (#88)
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1 changed files with 27 additions and 0 deletions
27
decimal.go
27
decimal.go
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@ -556,6 +556,33 @@ func (d Decimal) Sign() int {
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return d.value.Sign()
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}
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// IsPositive return
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//
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// true if d > 0
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// false if d == 0
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// false if d < 0
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func (d Decimal) IsPositive() bool {
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return d.Sign() == 1
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}
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// IsNegative return
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//
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// true if d < 0
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// false if d == 0
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// false if d > 0
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func (d Decimal) IsNegative() bool {
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return d.Sign() == -1
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}
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// IsZero return
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//
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// true if d == 0
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// false if d > 0
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// false if d < 0
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func (d Decimal) IsZero() bool {
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return d.Sign() == 0
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}
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// Exponent returns the exponent, or scale component of the decimal.
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func (d Decimal) Exponent() int32 {
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return d.exp
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