RAD Studio VCL Reference
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Math.NegativeValue Constant

NegativeValue defines a negative number result from using Sign.

Pascal
NegativeValue = Low(TValueSign);
C++
NegativeValue = Low(TValueSign);

Sign determines the sign of a number, returning the result in a TValueSign value. TValueSign will be NegativeValue if the number is negative. 

 

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