DAG_inl.h

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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
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#pragma once
 

 
// to ease IDE parser
#include <agrum/base/core/exceptions.h>
#include <agrum/base/graphs/DAG.h>
 
namespace gum {
 
  INLINE DAG& DAG::operator=(const DAG& g) {
    // avoid self assignment
    if (this != &g) {
      DiGraph::operator=(g);
      GUM_OP_CPY(DAG);
    }
 
    return *this;
  }
 
  INLINE DAG& DAG::operator=(DAG&& g) {
    if (this != &g) {
      DiGraph::operator=(std::move(g));
      GUM_OP_MOV(DAG);
    }
    return *this;
  }
 
  INLINE void DAG::addArc(const NodeId tail, const NodeId head) {
    if (head == tail) { GUM_ERROR(InvalidDirectedCycle, "Add a mono-cycle in a dag !") }
    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 */