Visitor.h

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// -*- Mode: c++; c-basic-offset: 4; tab-width: 4; -*-
 
/******************************************************************************
 *
 *  file:  Visitor.h
 *
 *  Copyright (c) 2003, Michael E. Smoot .
 *  Copyright (c) 2017, Google LLC
 *  All rights reserved.
 *
 *  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 {
 
class Visitor {
public:
    Visitor() {}
 
    virtual ~Visitor() {}
 
    virtual void visit() = 0;
};
}  // namespace TCLAP
 
#endif  // TCLAP_VISITOR_H