o4DGContext_inl.h

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/****************************************************************************
 *    Copyright (C) 2005 by Pierre-Henri WUILLEMIN et Christophe GONZALES   *
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#include <agrum/multidim/utils/FunctionGraphUtilities/operators/o4DGContext.h>

namespace gum {

  // Set DG1 diagram current explored Node
  INLINE void O4DGContext::setDG1Node(const NodeId& exploredNode) {
    __DG1ExploredNode = exploredNode;
  }

  // Set DG2 diagram current explored Node
  INLINE void O4DGContext::setDG2Node(const NodeId& exploredNode) {
    __DG2ExploredNode = exploredNode;
  }

  // Changes given variable modality
  INLINE void O4DGContext::chgVarModality(Idx varIndex, Idx newModality) {
    __varInstantiation[varIndex] = newModality;
  }

  // Changes given variable modality
  INLINE Idx O4DGContext::varModality(Idx varIndex) {
    return __varInstantiation[varIndex];
  }

  // Returns o4DGContext key
  INLINE const double& O4DGContext::key(short int* instNeeded) {
    __key = __DG1ExploredNode * __logPrime[__offset1]
            + __DG2ExploredNode * __logPrime[__offset2];

    for (Idx varPos = 0, offset = __offsetv; varPos < __nbVar; varPos++, offset--)
      if (instNeeded[varPos])
        __key += __varInstantiation[varPos] * __logPrime[offset];

    return __key;
  }

  INLINE void* O4DGContext::operator new(size_t s) {
    return SmallObjectAllocator::instance().allocate(s);
  }

  INLINE void O4DGContext::operator delete(void* p) {
    SmallObjectAllocator::instance().deallocate(p, sizeof(O4DGContext));
  }


} /* end of namespace gum */