/usr/include/deal.II/grid/tria_iterator_base.h is in libdeal.ii-dev 8.4.2-2+b1.
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//
// Copyright (C) 1999 - 2015 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, redistribute
// it, and/or modify it under the terms of the GNU Lesser General
// Public License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// The full text of the license can be found in the file LICENSE at
// the top level of the deal.II distribution.
//
// ---------------------------------------------------------------------
#ifndef dealii__tria_iterator_base_h
#define dealii__tria_iterator_base_h
#include <deal.II/base/config.h>
DEAL_II_NAMESPACE_OPEN
/**
* Namespace in which an enumeration is declared that denotes the states in
* which an iterator can be in.
*
* @ingroup Iterators
*/
namespace IteratorState
{
/**
* The three states an iterator can be in: valid, past-the-end and invalid.
*/
enum IteratorStates
{
/// Iterator points to a valid object
valid,
/// Iterator reached end of container
past_the_end,
/// Iterator is invalid, probably due to an error
invalid
};
}
DEAL_II_NAMESPACE_CLOSE
#endif
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