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/******************************************************************************
*
* file: Visitor.h
*
* Copyright (c) 2003, Michael E. Smoot .
* All rights reverved.
*
* See the file COPYING in the top directory of this distribution for
* more information.
*
* THE SOFTWARE IS PROVIDED _AS IS_, WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*****************************************************************************/
#ifndef TCLAP_VISITOR_H
#define TCLAP_VISITOR_H
namespace TCLAP {
/**
* A base class that defines the interface for visitors.
*/
class Visitor
{
public:
/**
* Constructor. Does nothing.
*/
Visitor() { }
/**
* Destructor. Does nothing.
*/
virtual ~Visitor() { }
/**
* Does nothing. Should be overridden by child.
*/
virtual void visit() { }
};
}
#endif

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