/usr/include/bobcat/ptriter is in libbobcat-dev 4.04.00-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | #ifndef INCLUDED_BOBCAT_PTRITER_
#define INCLUDED_BOBCAT_PTRITER_
#include <iterator>
namespace FBB
{
template <typename Iterator>
class PtrIter: public std::iterator<std::input_iterator_tag, 
                                    decltype(&*Iterator())>
{
    Iterator d_iter;
    public:
        typedef decltype(&*Iterator()) PtrType;
        PtrIter(Iterator const &iter);                                  // 1.f
        PtrIter(PtrIter &&tmp)          = default;
        PtrIter(PtrIter const &other)   = default;
        PtrType operator*() const;                              //    opstar.f
    
        PtrIter &operator++();                                      // opinc.f
    
        bool operator==(PtrIter const &other) const;                //  opeq.f
        bool operator!=(PtrIter const &other) const;                // opneq.f
};
template <typename Iterator>
PtrIter<Iterator>::PtrIter(Iterator const &iter)
:
    d_iter(iter)
{}
template <typename Iterator>
bool PtrIter<Iterator>::operator==(PtrIter const &other) const
{
    return d_iter == other.d_iter;
}
template <typename Iterator>
PtrIter<Iterator> &PtrIter<Iterator>::operator++()
{
    ++d_iter;
    return *this;
}
template <typename Iterator>
bool PtrIter<Iterator>::operator!=(PtrIter const &other) const
{
    return d_iter != other.d_iter;
}
template <typename Iterator>
typename PtrIter<Iterator>::PtrType PtrIter<Iterator>::operator*() const
{
    return &*d_iter;
}
    // Free functions
template<typename Iterator>
PtrIter<Iterator> ptrIter(Iterator const &iter)
{
    return PtrIter<Iterator>(iter);
}
} // FBB        
#endif
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