Get the problem status of a model.

Problem status.

This function returns the status of the active problem of the given model, or 0 if no problem is available. The problem status is bit encoded as follows:

XPRM_PBCHG	Problem loaded in the optimizer (if any) is not valid
XPRM_PBSOL	A solution is available

The solution status can be obtained by checking the XPRM_PBRES bits of the problem status. Possible values are:

XPRM_PBOPT	optimal solution found
XPRM_PBUNF	optimization unfinished
XPRM_PBINF	problem is infeasible
XPRM_PBUNB	problem is unbounded
XPRM_PBOTH	optimization failed (any other cause)

XPRMgetobjval.