The routine CPXcutcallbackaddlocal adds local cuts during MIP branch & cut. A local cut is one that applies to the current nodes and the subtree rooted at this node. Global cuts, that is, cuts that apply throughout the branch & cut tree, are added with the routine CPXcutcallbackadd. This routine may be called only from within user-written cut callbacks; thus it may be called only when the value of its wherefrom argument is CPX_CALLBACK_MIP_CUT.

The cut may be for the original problem if the parameter CPX_PARAM_MIPCBREDLP was set to CPX_OFF before the call to CPXmipopt that calls the callback. Otherwise, the cut is used on the presolved problem.

Example

 status = CPXcutcallbackaddlocal (env,
                                  cbdata,
                                  wherefrom,
                                  mynzcnt,
                                  myrhs,
                                  'L',
                                  mycutind,
                                  mycutval);