CGAL 4.7 - Algebraic Foundations: RealEmbeddableTraits_::Sgn Concept Reference

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CGAL 4.7 - Algebraic Foundations

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RealEmbeddableTraits_::Sgn Concept Reference
Concepts

## Definition

This `AdaptableUnaryFunction` computes the sign of a real embeddable number.

Refines:
  `AdaptableUnaryFunction`

See Also
  `RealEmbeddableTraits`

## Types

typedef unspecified_type | result_type
| Type convertible to `CGAL::Sign`.
typedef unspecified_type | argument_type
| Is `RealEmbeddableTraits::Type`.

## Operations

result_type | operator() (argument_type x)
| Computes the sign of \( x\).