Single.h
// Copyright (c) 2020 GeometryFactory (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
// $URL$
// $Id$
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
//
// Author(s) : Simon Giraudot
#ifndef CGAL_SINGLE_H
#define CGAL_SINGLE_H
namespace CGAL
{
// Class to create a range of one single element
template <typename T>
class Single
{
public:
typedef T* iterator;
typedef T* const_iterator;
typedef std::size_t size_type;
private:
T& t;
public:
Single (T& t) : t(t) { }
iterator begin() const { return &t; }
iterator end() const { return &t + 1; }
constexpr size_type size() const { return 1; }
constexpr bool empty() const { return false; }
};
template <typename T>
Single<const T> make_single (const T& t)
{
return Single<const T>(t);
}
template <typename T>
Single<T> make_single (T& t)
{
return Single<T>(t);
}
}
#endif // CGAL_SINGLE_H