CPXXmultiobjgetobjval and CPXmultiobjgetobjval

The routine CPXXmultiobjgetobjval/CPXmultiobjgetobjval accesses the value of objective with index n after multiobjective optimization.

int CPXXmultiobjgetobjval( CPXCENVptr env, CPXCLPptr lp, CPXDIM n, double * objval_p)

int CPXmultiobjgetobjval( CPXCENVptr env, CPXCLPptr lp, int n, double * objval_p)

Description

The routine CPXXmultiobjgetobjval/CPXmultiobjgetobjval returns the value of the specified objective in *objval_p after multiobjective optimization terminates, provided there is a solution.

Arguments

env: A pointer to the CPLEX environment as returned by CPXXopenCPLEX/CPXopenCPLEX.
lp: A pointer to a CPLEX problem object as returned by CPXXcreateprob/CPXcreateprob.
n: The index of the objective whose value should be returned.
objval_p: A pointer to a double number in which the evaluated objective value should be returned.

Return

The routine returns 0 (zero) if successful and nonzero if an error occurs. Potential errors include: objective index out of range; objval_p being NULL; or no solution available"the objective index is out of range or no solution exists.

Example


        status = CPXmultiobjgetobjval (env, lp, n, objval_p);