
/*!
\ingroup PkgCircularKernel2GeometricConcepts
\cgalConcept

\cgalRefines `Kernel::IsVertical_2` 
*/

class CircularKernel::IsVertical_2 {
public:

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

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

/*!
For a circular arc, always returns `false`. 
*/ 
bool operator() 
(const CircularKernel::Circular_arc_2 & c); 

/// @}

}; /* end CircularKernel::IsVertical_2 */

