
/*!
\ingroup PkgCircularKernel2GeometricConcepts
\cgalConcept

To test whether a point lies in the vertical range of a curve. 

*/

class CircularKernel::InXRange_2 {
public:

/// \name Operations
/// A model of this concept must provide:
/// @{

/*!
For a line arc. 
*/ 
bool operator() 
(const CircularKernel::Line_arc_2 & l, 
const CircularKernel::Circular_arc_point_2 & p); 

/*!
For a circular arc. \pre `c` is `x`-monotone. 
*/ 
bool operator() 
(const CircularKernel::Circular_arc_2 & c, 
const CircularKernel::Circular_arc_point_2 & p); 

/// @}

}; /* end CircularKernel::InXRange_2 */

