#ifndef COMMON_H_
#define COMMON_H_

#include <stdint.h>

/**
 * @brief Output the seconds elapsed while execution.
 *
 * @param seconds Seconds spent on execution, excluding IO.
 */
void print_time(double const seconds);

/**
 * @brief Return the number of seconds since an unspecified time (e.g., Unix
 *        epoch). This is accomplished with a high-resolution monotonic timer,
 *        suitable for performance timing.
 *
 * @return The number of seconds.
 */
inline double monotonic_seconds();

struct data {
  uint32_t rows, dimensions;
  double *buf;
};

struct labels {
  uint32_t rows;
  double *buf;
};

struct data *read_data(char *path);
struct labels *read_labels(char *path);

#endif