SundanceFuncSetAccumulator.hpp

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#ifndef SUNDANCE_FUNCSETACCUMULATOR_H
#define SUNDANCE_FUNCSETACCUMULATOR_H


#include "SundanceDefs.hpp"
#include "SundanceSet.hpp"

namespace Sundance
{
using Sundance::Set;

/**
 * This abstract class defines the interface for accumulating 
 * sets of functions that are available in an expression.
 */
class FuncSetAccumulator 
{
public:

  /** Append to the set of func IDs present in this expression. 
   * \param funcDofIDs the active functions available from this expression
   * \param activeSet the functions required by the client
   * Most classes will not contain functions, so the 
   * default implementation is a no-op. This will be overridden by 
   * function subtypes
   */
  virtual void accumulateFuncSet(Set<int>& funcDofIDs, 
    const Set<int>& activeSet) const {;}

private:
};

}


#endif