|  | @@ -231,7 +231,7 @@ class LineSearchFunction : public LineSearch::Function {
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				|  |  |    explicit LineSearchFunction(Evaluator* evaluator);
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				|  |  |    virtual ~LineSearchFunction() {}
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				|  |  |    void Init(const Vector& position, const Vector& direction);
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				|  |  | -  virtual bool Evaluate(const double x, double* f, double* g);
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				|  |  | +  virtual bool Evaluate(double x, double* f, double* g);
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				|  |  |    double DirectionInfinityNorm() const;
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				|  |  |  
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				|  |  |   private:
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