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Applies to: ~>0.1
class operator Negative(const F: TFraction): TFraction;
This operator overload enables the unary negative (negation) operator
- to be applied to a TFraction.
The operator returns a copy of the fraction with its sign changed.
var F, FNeg: TFraction; begin F := TFraction.Create(3, 4); FNeg := -F; Assert((FNeg.Numerator = -3) and (FNeg.Denominator = 4)); F := TFraction.Create(-3, 4); FNeg := -F; Assert((FNeg.Numerator = 3) and (FNeg.Denominator = 4)); F := TFraction.Create(0, 1); FNeg := -F; Assert((FNeg.Numerator = 0) and (FNeg.Denominator = 1)); end;