SCIPmultiaggregateVar

scip_sys

Function SCIPmultiaggregateVar 

Source 
pub unsafe extern "C" fn SCIPmultiaggregateVar(
    scip: *mut SCIP,
    var: *mut SCIP_VAR,
    naggvars: c_int,
    aggvars: *mut *mut SCIP_VAR,
    scalars: *mut f64,
    constant: f64,
    infeasible: *mut c_uint,
    aggregated: *mut c_uint,
) -> SCIP_RETCODE
Expand description

converts variable into multi-aggregated variable; this changes the variable array returned from SCIPgetVars() and SCIPgetVarsData();

@warning The integrality condition is not checked anymore on the multi-aggregated variable. You must not multi-aggregate an integer variable without being sure, that integrality on the aggregation variables implies integrality on the aggregated variable.

The output flags have the following meaning:

  • infeasible: the problem is infeasible
  • aggregated: the aggregation was successfully performed (the variables were not aggregated before)

@return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref SCIP_Retcode “SCIP_RETCODE” for a complete list of error codes.

@pre This method can only be called if @p scip is in stage \ref SCIP_STAGE_PRESOLVING