forked from boostorg/range
54 lines
1.4 KiB
Plaintext
54 lines
1.4 KiB
Plaintext
[/
|
|
Copyright 2010 Neil Groves
|
|
Distributed under the Boost Software License, Version 1.0.
|
|
(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
/]
|
|
[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__
|
|
* [*Range Return Type:] `boost::indirected_range<typeof(rng)>`
|
|
* [*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]
|
|
|
|
|