Add a multidimensional counting_range

[ilja.j.honkonen@…]

I think a multidimensional (floating point) counting_range with configurable step size would be useful, at least I have found a need for that many times. Here is a suggestion, could something like this eventually be included in boost? What modifications should I make (after switching to boost::bind)? The iterated values are evenly spaced from each other and the boundaries.

Example usage:

boost::array<double, 2> start{-4, 3}, end{4, 11};

const size_t samples_per_dim = 2;

for (const auto& i: volume_iterator(start, end, samples_per_dim)) {

print(i);

}

Output:

-2 5

2 5

-2 9

2 9

[Neil Groves]

irange with step size already exists. The floating-point idea has been explicitly rejected due to difficulties providing loop variant / invariant guarantees.

[anonymous]

In case someone finds this useful I've put it into a hpp file here: ttps://github.com/nasailja/pamhd/blob/master/source/volume_range.hpp

[anonymous]

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