Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

strided

strided

strided example

Syntax	Code
Pipe	`rng \| boost::adaptors::strided(n)`
Function	`boost::adaptors::stride(rng, n)`

Precondition: 0 <= n.
Returns: A new range based on rng where traversal is performed in steps of n.
Range Category: Single Pass Range
Returned Range Category: The range category of rng.

strided example

#include <boost/range/adaptor/strided.hpp>
#include <boost/range/algorithm/copy.hpp>
#include <boost/assign.hpp>
#include <iterator>
#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 would produce the output:

1,3,5,7,9,