unable to input bolt::cl::transform_iterator into bolt::cl::copy

[aokomoriuta]

#include <iostream>
#include <vector>
#include <bolt/cl/iterator/counting_iterator.h>
#include <bolt/cl/iterator/transform_iterator.h>
#include <bolt/cl/functional.h>
#include <bolt/cl/device_vector.h>
#include <bolt/cl/copy.h>

BOLT_FUNCTOR(GetSquare,
struct GetSquare
{
public:
    int operator()(const int& globalId) const
    {
        return globalId*globalId;
    }
};);

int main()
{
    const std::size_t n=10;

    bolt::cl::control ctrl = bolt::cl::control::getDefault();

    bolt::cl::device_vector<int> debug(n);

    auto globalId = bolt::cl::make_counting_iterator(0);

    // This is OK
    // bolt::cl::transform(globalId, globalId + n, debug.begin(), GetSquare());

    // This causes compilation error
    auto square = bolt::cl::make_transform_iterator(globalId, GetSquare());
    bolt::cl::copy(square, square + n, debug.begin());

    for(int i = 0; i < n; i++)
    {
        std::cout << i << ": " << debug[i] << std::endl;
    }

    return 0;
}

This problem seems to be because bolt::cl::transform_iterator have the method getContainer() only with template type

template<typename Container >
Container& getContainer() const
{
    return this->base().getContainer( );
}

but bolt::cl::copy needs ITERATOR::getContainer() without any template type

V_OPENCL( kernels[whichKernel].setArg( 0, first.getContainer().getBuffer()), "Error setArg kernels[ 0 ]" );

This can be solved with C++11

auto getContainer() const -> decltype(base().getContainer())
{
    return this->base().getContainer();
}

I don't have any idea in C++03 (boost::result_of?).