virtual _LONG_T GetNextDeletedColumns(
    _LONG_T max_no, 
    _LONG_T col_no[]
) = 0;

The GetNextDeletedColumns method returns the actual number of columns retrieved.

The GetNextDeletedColumns method is used to get columns from AIMMS that were deleted after a solve using GMP modifications. This method should only be called if the capability flag SolverCapability::CAPAB_MATRIX_MANIP has been set in the GetInitialInfo method.

1. The number of deleted columns is equal to the value of parameter IntegerMathProgramInfo::IPARAM_MM_DEL_C, as passed to the DoSolve method.
2. If max_no is greater than or equal to the number of deleted columns in the problem, you get all column data using a single call to this method.
3. If max_no is smaller than the number of deleted columns then you request for a block-wise retrieval, and you must call GetNextDeletedColumns repeatedly, until all deleted columns are retrieved.

IAimmsMathProgramMatrixManipulationInfo Methods