/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Copyright 2013 Danny Robson <danny@nerdcruft.net>
 */

#include <cruft/util/hash/buzhash.hpp>
#include <cruft/util/io.hpp>

#include <iostream>

int main (int argc, char const **argv)
{
    (void)argc;

    cruft::mapped_file src (argv[1]);
    cruft::view bytes (src);

    static constexpr std::size_t BITS = 16;
    std::vector<std::size_t> counts (BITS, 0);

    static constexpr std::size_t WINDOW = 48;
    cruft::hash::buzhash<u64> h (WINDOW, bytes);

    for (auto const &val: bytes.consume (WINDOW)) {
        auto const res = h (&val);

        std::size_t mask = ~u64(0) >> (64 - BITS);
        for (std::size_t i = 0; i < BITS; ++i) {
            if ((res & mask) == 0)
                counts[i]++;
            mask >>= 1;
        }
    }

    for (auto const &i: counts)
        std::cout << i << '\n';
}