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$\=(?Expr1, ?Expr2, ?Bool)

Reified arithmetic comparison
Expr1
An arithmetic expression
Expr2
An arithmetic expression
Bool
Variable, 0 or 1

Description

Reified version of $\=/2, i.e. the truth value of the comparison is reflected in the value of the 0/1 variable Bool.

This constraint suspends until its first two arguments are ground. It then unifies Bool according to the truth value of the corresponding $\=/2 constraint.

Modules

This predicate is sensitive to its module context (tool predicate, see @/2).

Exceptions

(24) number expected
Expr1 or Expr2 is not an arithmetic expression.

See Also

$\= / 2, =\= / 3