| [section:indirected indirected] |
| |
| [table |
| [[Syntax] [Code]] |
| [[Pipe] [`rng | boost::adaptors::indirected`]] |
| [[Function] [`boost::adaptors::indirect(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:] __single_pass_range__ |
| * [*Returned Range Category:] The range category of `rng` |
| |
| [section:indirected_example indirected 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; |
| } |
| `` |
| [endsect] |
| |
| This would produce the output: |
| `` |
| 0,1,2,3,4,5,6,7,8,9 |
| `` |
| [endsect] |
| |
| |