VertexEnumerator.h

Go to the documentation of this file.

// This file is part of the Peano project. For conditions of distribution and
// use, please see the copyright notice at www.peano-framework.org
#pragma once
 
 
#include "peano4/utils/Globals.h"
#include "tarch/Assertions.h"
 
 
namespace peano4 {
  namespace datamanagement {
    template <class Vertex>
    struct VertexEnumerator;
  }
}
 
 
template <class Vertex>
struct peano4::datamanagement::VertexEnumerator {
  private:
    Vertex* _vertices[ TwoPowerD ];
  public:
    VertexEnumerator() {
      #if PeanoDebug>0
      for (int i=0; i<TwoPowerD; i++) {
        _vertices[i] = nullptr;
      }
      #endif
    }
 
    VertexEnumerator(Vertex* firstVertex) {
      assertion( firstVertex!=nullptr );
      for (int i=0; i<TwoPowerD; i++) {
        _vertices[i] = firstVertex+i;
      }
    }
 
 
    void setPointer(int i, Vertex* value) {
      assertion(i>=0);
      assertion(i<TwoPowerD);
      assertion(value!=nullptr);
      _vertices[i] = value;
    }
 
    Vertex& operator()(int i) const {
      assertion1(i>=0,i);
      assertion1(i<TwoPowerD,i);
      assertion1( _vertices[i]!=nullptr,i );
      return *(_vertices[i]);
    }
};