Function SCIPgetNSiblings 

pub unsafe extern "C" fn SCIPgetNSiblings(scip: *mut SCIP) -> c_int

gets number of siblings of focus node

@return the number of siblings of focus node

@pre This method can be called if @p scip is in one of the following stages: - \ref SCIP_STAGE_SOLVING - \ref SCIP_STAGE_SOLVED