COIN-OR::LEMON - Graph Library

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  • lemon/dfs.h

    r435 r438  
    16271627    /// \pre Either \ref run(Node) "run()" or \ref init()
    16281628    /// must be called before using this function.
    1629     bool reached(Node v) { return (*_reached)[v]; }
     1629    bool reached(Node v) const { return (*_reached)[v]; }
    16301630
    16311631    ///@}
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