Method fill_batch_with_variable_increment

src/batch_reader.cc:60–80

  }

  std::vector<Example>
  BatchReader::fill_batch_with_variable_increment(const size_t max_batch_size,
                                                   const BatchType batch_type) {
    std::vector<Example> batch;
    batch.reserve(max_batch_size);

    size_t total_increment = 0;

    while (!_next.empty()) {
      const size_t cur_increment = get_batch_size_increment(_next, batch_type);
      const size_t new_batch_size = total_increment + cur_increment;

      if (!batch.empty() && new_batch_size > max_batch_size)
        break;

      batch.emplace_back(std::move(_next));
      total_increment += cur_increment;
      _next = get_next_example();
    }
    return batch;
  }

  std::vector<Example>
  BatchReader::get_next(const size_t max_batch_size,