DAG_inl.h

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// to ease IDE parser
#include <agrum/core/exceptions.h>
#include <agrum/graphs/DAG.h>

namespace gum {

  INLINE DAG& DAG::operator=(const DAG& g) {
    // avoid self assignment
    if (this != &g) { DiGraph::operator=(g); }

    return *this;
  }

  INLINE void DAG::addArc(const NodeId tail, const NodeId head) {
    if (hasDirectedPath(head, tail)) {
      GUM_ERROR(InvalidDirectedCycle, "Add a directed cycle in a dag !");
    }

    // checking whether tail and head do belong to the graph is performed
    // within class DiGraph
    DiGraph::addArc(tail, head);
  }

} /* namespace gum */