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/* This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
* See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
* Author(s): Marc Glisse
*
* Copyright (C) 2017 Inria
*
* Modification(s):
* - YYYY/MM Author: Description of the modification
*/
#ifndef NULL_OUTPUT_ITERATOR_H_
#define NULL_OUTPUT_ITERATOR_H_
#include <iterator>
namespace Gudhi {
/** An output iterator that ignores whatever it is given. */
struct Null_output_iterator {
typedef std::output_iterator_tag iterator_category;
typedef void value_type;
typedef void difference_type;
typedef void pointer;
typedef void reference;
Null_output_iterator& operator++() {return *this;}
Null_output_iterator operator++(int) {return *this;}
struct proxy {
template<class T>
proxy& operator=(T&&){return *this;}
};
proxy operator*()const{return {};}
};
} // namespace Gudhi
#endif // NULL_OUTPUT_ITERATOR_H_
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