The routine CPXmipopt may be used, at any time after a mixed integer program has been created by a call to CPXcreateprob, to find a solution to that problem.

CPXmipopt returns zero unless it encounters an error. Nonzero values are error codes indicating which type of failure occurred. Use the routine CPXgetstat to determine the status of the mixed integer optimization. One possible error is the inability to solve a subproblem satisfactorily, as indicated by CPXERR_SUBPROB_SOLVE. The solution status of the subproblem optimization can be obtained with the routine CPXgetsubstat.

An LP solution does not exist at the end of CPXmipopt, so post-solution information is available only through the special mixed integer solution routines. To obtain post-solution information for the LP subproblem associated with the integer solution, use the routine CPXchgprobtype.

Example

 status = CPXmipopt (env, lp);
 

See also the example mipex1.c in the standard distribution.