PDAG_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/PDAG.h>
 
namespace gum {
 
  INLINE PDAG& PDAG::operator=(const PDAG& g) {
    // avoid self assignment
    if (this != &g) { MixedGraph::operator=(g); }
 
    return *this;
  }
 
  INLINE void PDAG::addArc(const NodeId tail, const NodeId head) {
    if (head == tail) {
      GUM_ERROR(InvalidDirectedCycle, "Add a mono-cycle in a PDAG for node " << head)
    }
    if (this->hasDirectedPath(head, tail)) {
      GUM_ERROR(InvalidDirectedCycle,
                "Add a directed cycle in a PDAG : between " << head << " and " << tail)
    }
    if (this->hasMixedReallyOrientedPath(head, tail)) {
      GUM_ERROR(InvalidPartiallyDirectedCycle,
                "Add a partial directed cycle in a PDAG : between " << head << " and " << tail)
    }
 
    // checking whether tail and head do belong to the graph is performed
    // within class DiGraph
    MixedGraph::addArc(tail, head);
  }
 
  INLINE void PDAG::addEdge(const NodeId tail, const NodeId head) {
    if (head == tail) { GUM_ERROR(InvalidDirectedCycle, "Add a mono-cycle in a PDAG !") }
 
    if (this->hasMixedReallyOrientedPath(head, tail)
        || this->hasMixedReallyOrientedPath(tail, head)) {
      GUM_ERROR(InvalidPartiallyDirectedCycle,
                "Add a partial directed cycle in a PDAG : between " << head << " and " << tail)
    }
 
    // checking whether tail and head do belong to the graph is performed
    // within class DiGraph
    MixedGraph::addEdge(tail, head);
  }
} /* namespace gum */