// BSD 2-Clause License
//
// Copyright 2020 James Melville
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
//    this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// OF SUCH DAMAGE.

#ifndef UWOT_MATRIX_H
#define UWOT_MATRIX_H

#include <vector>

namespace uwot {

template <typename T>
void get_row(const std::vector<double> &m, std::size_t nrow, std::size_t ncol,
             std::size_t r, std::vector<T> &out) {
  for (std::size_t j = 0; j < ncol; j++) {
    out[j] = m[r + j * nrow];
  }
}

template <typename T>
void set_row(std::vector<T> &m, std::size_t nrow, std::size_t ncol,
             std::size_t r, const std::vector<T> &out) {
  for (std::size_t j = 0; j < ncol; j++) {
    m[r + j * nrow] = out[j];
  }
}

} // namespace uwot

#endif // UWOT_MATRIX_H
