#include <poincare/undefined.h>
  extern "C" {
  #include <math.h>
  }
  #include "layout/string_layout.h"
  
  namespace Poincare {
  
  Expression::Type Undefined::type() const {
    return Type::Undefined;
  }
  
  Expression * Undefined::clone() const {
    return new Undefined();
  }
  
  template<typename T> Complex<T> * Undefined::templatedApproximate(Context& context, AngleUnit angleUnit) const {
    return new Complex<T>(Complex<T>::Float(NAN));
  }
  
  ExpressionLayout * Undefined::privateCreateLayout(FloatDisplayMode floatDisplayMode, ComplexFormat complexFormat) const {
    char buffer[16];
    int numberOfChars = Complex<float>::convertFloatToText(NAN, buffer, 16, 1, floatDisplayMode);
    return new StringLayout(buffer, numberOfChars);
  }
  
  int Undefined::writeTextInBuffer(char * buffer, int bufferSize, int numberOfSignificantDigits) const {
    if (bufferSize == 0) {
      return -1;
    }
    return strlcpy(buffer, "undef", bufferSize);
  }
  
  }