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6.13.12.2 The <zero-flonum> type

Core Type: <zero-flonum>
Parent Type: <flonum>

Type of zero flonum values: ‘+0.0’ and ‘-0.0’.

Constructor on <zero-flonum>: <zero-flonum> type-constructor obj

Validate obj as object of type <zero-flonum>. Return obj itself.

Type predicate on <zero-flonum>: <boolean> type-predicate obj

The type predicate is zero-flonum?. Return #t if obj is an object of type <zero-flonum>; otherwise return #f.