operator<=

public IloRange operator<=(const IloRangeBase base, IloNum val)

Definition file: ilconcert/ilolinear.h

This overloaded C++ operator constrains its first argument to be less than or equal to its second argument. In order to be taken into account, this constraint must be added to a model and extracted for an algorithm.

operator<=

public IloPredicate< IloObject > operator<=(IloEvaluator< IloObject > left, IloEvaluator< IloObject > right)

public IloPredicate< IloObject > operator<=(IloEvaluator< IloObject > left, IloNum threshold)

public IloPredicate< IloObject > operator<=(IloNum threshold, IloEvaluator< IloObject > right)

Definition file: ilsolver/iloselector.h

Include file: <ilsolver/iloselector.h>

Creates a less-than-or-equal predicate from two evaluators.

These operators create a new IloPredicate<IloObject> instance by comparing the value returned by an evaluator with either that of another evaluator or a threshold value. The semantics of the new predicate is a less-than-or-equal comparison. The first function creates a predicate which returns IloTrue if and only if the value returned by the left evaluator is less than or equal to the value returned by the right evaluator. The second function creates a predicate which returns IloTrue if and only if the value returned by the left evaluator is less than or equal to the threshold value. Finally, the third function creates a predicate that returns IloTrue if and only if the threshold value is less than or equal to the value returned by the right evaluator.

For more information, see Selectors.

operator<=

public IloConstraint operator<=(IloNumExprArg base, IloNumExprArg base2)

public IloRange operator<=(IloNumExprArg base, IloNum val)

public IloRangeBase operator<=(IloNum val, const IloNumExprArg expr)

Definition file: ilconcert/ilolinear.h

overloaded C++ operator

operator<=

public IlcBool operator<=(const IlcRevFloat & rev, IlcFloat value)

public IlcBool operator<=(const IlcRevInt & rev, IlcInt value)

public IlcBool operator<=(IlcInt value, const IlcRevInt & rev)

public IlcBool operator<=(const IlcRevInt & rev1, const IlcRevInt & rev2)

public IlcBool operator<=(IlcFloat value, const IlcRevFloat & rev)

public IlcBool operator<=(const IlcRevFloat & rev1, const IlcRevFloat & rev2)

public IlcBool operator<=(const IlcIntToIntStepFunction & f1, const IlcIntToIntStepFunction & f2)

Definition file: ilsolver/basic.h

Include file: <ilsolver/ilosolver.h>

This operator compares its arguments; if the first argument is less than or equal to the second, then it returns IlcTrue; otherwise, it returns IlcFalse.

operator<=

public IlcConstraint operator<=(const IlcIntExp exp1, const IlcIntExp exp2)

public IlcConstraint operator<=(const IlcIntExp exp1, IlcInt exp2)

public IlcConstraint operator<=(IlcInt exp1, const IlcIntExp exp2)

public IlcConstraint operator<=(const IlcFloatExp exp1, const IlcFloatExp exp2)

public IlcConstraint operator<=(const IlcFloatExp exp1, IlcFloat exp2)

public IlcConstraint operator<=(IlcFloat exp1, const IlcFloatExp exp2)

public IlcConstraint operator<=(const IlcConstraint ct1, const IlcConstraint ct2)

Definition file: ilsolver/ilcint.h

Include file: <ilsolver/ilosolver.h>

This operator creates and returns an inequality constraint between its arguments; that is, the first argument must be less than or equal to the second.

When its arguments are constraints (instances of IlcConstraint), the constraint that this operator creates and returns is the implication between its arguments: ct1 implies ct2. The implication operator may look strange. This operator was selected for two reasons. First, there is no operator in C++ that looks like the conventional implication sign, =>. One possible candidate is -> but because of its purpose in C++, that choice is too dangerous. Second, if you recall that 1 represents IlcTrue, and 0 represents IlcFalse, then implication is the “less than or equal to” constraint.

This constraint is associated with the whenRange propagation event after you post it if its arguments are constrained floating-point expressions or constrained integer expressions.

When you create a constraint, it has no effect until you post it.