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breal_max(+Number, -Result)

Extracts the upper floating point bound of Number
Number
A number.
Result
A variable or float.

Description

This predicate is used by the ECLiPSe compiler to expand evaluable arithmetic expressions. So a call to breal_max(Number, Result) is equivalent to
    Result is breal_max(Number).
A bounded real is a real number represented by a lower and upper bound in floating point format. This predicate extracts the upper bound and unifies it with Result. If Number is not a bounded real, the result returned is equivalent to converting it to a bounded real first.

Modes and Determinism

Exceptions

(4) instantiation fault
Number is not instantiated
(24) number expected
Number is a not a number.

Examples

Success:
      ?- breal_max(0.99__1.01, X).
      X = 1.01

      ?- breal_max(1, X).
      X = 1.0

      ?- breal_max(1.0, X).
      X = 1.0

      ?- breal_max(1_10, X).
      X = 0.10000000000000002

Error:
      ?- breal_max("a", Z).
      number expected in breal_max("a", Z)

      ?- breal_max(2 + 4, Z).
      number expected in breal_max(2 + 4, Z)

See Also

breal_min / 2, breal / 1, breal / 2, breal_bounds / 3, breal_from_bounds / 3, is / 2