/usr/include/lexertl/internals.hpp is in libpuma-dev 1:2.1-2+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright (c) 2009-2015 Ben Hanson (http://www.benhanson.net/)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file licence_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef LEXERTL_INTERNALS_HPP
#define LEXERTL_INTERNALS_HPP
#include "enums.hpp"
#include "containers/ptr_vector.hpp"
namespace lexertl
{
namespace detail
{
template<typename id_type>
struct basic_internals
{
typedef std::vector<id_type> id_type_vector;
typedef ptr_vector<id_type_vector> id_type_vector_vector;
id_type _eoi;
id_type_vector_vector _lookup;
id_type_vector _dfa_alphabet;
id_type _features;
id_type_vector_vector _dfa;
basic_internals() :
_eoi(0),
_lookup(),
_dfa_alphabet(),
_features(0),
_dfa()
{
}
void clear()
{
_eoi = 0;
_lookup.clear();
_dfa_alphabet.clear();
_features = 0;
_dfa.clear();
}
bool empty() const
{
return _dfa->empty();
}
void add_states(const std::size_t num_)
{
for (std::size_t index_ = 0; index_ < num_; ++index_)
{
_lookup->push_back(static_cast<id_type_vector *>(0));
// lookup *always* has a size 256 now.
_lookup->back() = new id_type_vector(256, dead_state_index);
_dfa_alphabet.push_back(0);
_dfa->push_back(static_cast<id_type_vector *>(0));
_dfa->back() = new id_type_vector;
}
}
void swap(basic_internals &internals_)
{
std::swap(_eoi, internals_._eoi);
_lookup->swap(*internals_._lookup);
_dfa_alphabet.swap(internals_._dfa_alphabet);
std::swap(_features, internals_._features);
_dfa->swap(*internals_._dfa);
}
private:
basic_internals(const basic_internals &); // No copy construction.
basic_internals &operator =(const basic_internals &); // No assignment.
};
}
}
#endif
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