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Boost.Range |
stridedrng | boost::adaptors::strided( n )boost::make_strided_range( rng, n )
0 <= n && n <= distance(rng)
rng where traversal is performed in steps of n.
#include <boost/range/adaptor/strided.hpp>
#include <boost/range/algorithm/copy.hpp>
#include <boost/assign.hpp>
#include <algorithm>
#include <iostream>
#include <vector>
int main(int argc, const char* argv[])
{
using namespace boost::adaptors;
using namespace boost::assign;
std::vector<int> input;
input += 1,2,3,4,5,6,7,8,9,10;
boost::copy(
input | strided(2),
std::ostream_iterator<int>(std::cout, ","));
return 0;
}
This produces the output:
1,3,5,7,9
(C) Copyright Neil Groves 2009 (C) Copyright Thorsten Ottosen 2003-2004