CPXcopysos

public int CPXcopysos(CPXCENVptr env, CPXLPptr lp, int numsos, int numsosnz, const char * sostype, const int * sosbeg, const int * sosind, const double * soswt, char ** sosname)

Definition file: cplex.h

The routine CPXcopysos copies special ordered set (SOS) information to a problem object of type CPXPROB_MILP, CPXPROB_MIQP, or CPXPROB_MIQCP.

When you build or modify your problem with this routine, you can verify that the results are as you intended by calling CPXcheckcopysos during application development.

Table 1: Settings for sostype
`CPX_TYPE_SOS1`	'1'	Type 1
`CPX_TYPE_SOS2`	'2'	Type 2

Example

 status = CPXcopysos (env, 
                      lp, 
                      numsos, 
                      numsosnz, 
                      sostype, 
                      sosbeg, 
                      sosind, 
                      soswt,
                      NULL);

Parameters:

env	A pointer to the CPLEX environment as returned by `CPXopenCPLEX`.
lp	A pointer to a CPLEX problem object as returned by `CPXcreateprob`.
numsos	The number of SOS sets. If `numsos` is equal to zero, `CPXcopysos` removes all the SOSs from the LP object.
numsosnz	The total number of members in all sets. `CPXcopysos` with `numsosnz` equal to zero removes all the SOSs from the LP object.
sostype	An array containing SOS type information for the sets. `sostype[i]` specifies the SOS type of set `i`, according tot the settings in Table 1. The length of this array must be at least `numsos`.
sosbeg	An array stating beginning indices as explained in `soswt`.
sosind	An array stating indices as explained in `soswt`.
soswt	Arrays declaring the indices and weights for the sets. For every set, the indices and weights must be stored in sequential locations in `sosind` and `soswt`, respectively, with `sosbeg[j]` containing the index of the beginning of set `j`. The weights must be unique in their array. For `j < numsos-1` the indices of set `j` must be stored in `sosind[sosbeg[j]],..., sosind[sosbeg[j+1]-1]` and the weights in `soswt[sosbeg[j],..., soswt[sosbeg[j+1]-1]`. For the last set, `j = numsos-1`, the indices must be stored in `sosind[sosbeg[numsos-1]],..., sosind[numsosnz-1]` and the corresponding weights in `soswt[sosbeg[numsos-1]] ..., soswt[numsosnz-1]`. Hence, `sosbeg` must be of length at least `numsos`, while `sosind` and `soswt` must be of length at least `numsosnz`.
sosname	An array containing pointers to character strings that represent the names of the SOSs. May be NULL.

Returns:

The routine returns zero if successful and nonzero if an error occurs.