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max(+Number1, +Number2, -Maximum)

Unifies the maximum of Number1 and Number2 with Maximum.
Number1
A number.
Number2
A number.
Maximum
A variable or number.

Description

This predicate is used by the ECLiPSe compiler to expand evaluable arithmetic expressions. So the call to max(Number1, Number2, Maximum) is equivalent to
	Maximum is max(Number1, Number2)
which should be preferred for portability.

In coroutining mode, if Number1 or Number2 are uninstantiated, the call to max/3 is delayed until these variables are instantiated.

Modes and Determinism

Exceptions

(4) instantiation fault
Number1 or Number2 is not instantiated (non-coroutining mode only).
(24) number expected
Number1 or Number2 is not of a numeric type.

Examples

Success:
      max(5, 2, 5).
      max(2_3, 3_4, 3_4).
      max(5.0 , 2.0, 5.0).
      max(5, 2.0, 5.0).         (The types are adjusted)
      max(5, 2_0, 5_0).         (The types are adjusted)
Fail:
      max(1, 2, 3).
      max(1, 2, 2.0).
      max(5, 2, r).
      max(5, 2.0, 5).
Error:
      max(A, 2, 6).             (Error 4).
      max(4 - 2, 3, 3).         (Error 24).



See Also

is / 2