Arguments and Values

Description

minusp returns true if real is less than zero; otherwise, returns false.

plusp returns true if real is greater than zero; otherwise, returns false.

Regardless of whether an implementation provides distinct representations for positive and negative float zeros, (minusp -0.0) always returns false.

Examples

 (minusp -1) ⇒  true
 (plusp 0) ⇒  false
 (plusp least-positive-single-float) ⇒  true

Exceptional Situations

Should signal an error of type type-error if real is not a real.

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