CPXXNETchgobj and CPXNETchgobj

The routine CPXXNETchgobj/CPXNETchgobj is used to change the objective values for a set of arcs in the network stored in a network problem object.

int CPXXNETchgobj( CPXCENVptr env, CPXNETptr net, CPXDIM cnt, CPXDIM const * indices, double const * obj )

int CPXNETchgobj( CPXCENVptr env, CPXNETptr net, int cnt, int const * indices, double const * obj )

Description

The routine CPXXNETchgobj/CPXNETchgobj is used to change the objective values for a set of arcs in the network stored in a network problem object.

Any solution information stored in the problem object is lost.

env: A pointer to the CPLEX environment as returned by CPXXopenCPLEX/CPXopenCPLEX.
net: A pointer to a CPLEX network problem object as returned by CPXXNETcreateprob/CPXNETcreateprob.
cnt: Number of arcs for which the objective values are to be changed.
indices: An array of indices that indicate the arcs for which the objective values are to be changed. This array must have a length of at least cnt. The indices must be in the range [0, narcs-1].
obj: An array of the new objective values for the arcs. This array must have a length of at least cnt.

The routine returns 0 (zero) on success and nonzero if an error occurs.


 status = CPXNETchgobj (env, net, cnt, indices, newobj);