# Boost.Range

## Range Adaptors

#### `indirected`

>     rng | boost::adaptors::indirected

>     boost::make_indirected_range( rng )

- Precondition: The value-type of the range defines unary `operator*()`
- Postcondition: For all elements `x` in the returned range, `x` is the result of `*y` where `y` is the corresponding element in the original range.
- Range Category: SinglePassRange

### Example

            #include <boost/range/adaptor/indirected.hpp>
            #include <boost/range/algorithm/copy.hpp>
            #include <boost/shared_ptr.hpp>
            #include <algorithm>
            #include <iostream>
            #include <vector>

            int main(int argc, const char* argv[])
            {
                using namespace boost::adaptors;

                std::vector<boost::shared_ptr<int> > input;

                for (int i = 0; i < 10; ++i)
                    input.push_back(boost::shared_ptr<int>(new int(i)));

                boost::copy(
                    input | indirected,
                    std::ostream_iterator<int>(std::cout, ","));

                return 0;
            }

This produces the output:
`0,1,2,3,4,5,6,7,8,9`

(C) Copyright Neil Groves 2009 (C) Copyright Thorsten Ottosen 2003-2004