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transformed
transformed example

Syntax

Code

Pipe

rng | boost::adaptors::transformed(fun)

Function

boost::adaptors::transform(rng, fun)

#include <boost/range/adaptor/transformed.hpp>
#include <boost/range/algorithm/copy.hpp>
#include <boost/assign.hpp>
#include <algorithm>
#include <iostream>
#include <vector>

struct double_int
{
    typedef int result_type;
    int operator()(int x) const { return x * 2; }
};

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 | transformed(double_int()),
        std::ostream_iterator<int>(std::cout, ","));

    return 0;
}

This would produce the output:

2,4,6,8,10,12,14,16,18,20


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