Add a new general constraint of type GRB.GENCONSTR_ABS to a model.

An ABS constraint <span>$</span>r = \mbox{abs}\{x\}<span>$</span> states that the resultant variable <span>$</span>r<span>$</span> should be equal to the absolute value of the argument variable <span>$</span>x<span>$</span>.

GRBGenConstr AddGenConstrAbs ( GRBVar resvar,
    GRBVar argvar,
    string name )

    resvar: The resultant variable of the new constraint.

    argvar: The argument variable of the new constraint.

    name: Name for the new general constraint.

    Return value:

    New general constraint.