/* nag_rngs_init_repeatable (g05kbc) Example Program.
 *
 * Copyright 2001 Numerical Algorithms Group.
 *
 * Mark 7, 2001.
 */

#include <stdio.h>
#include <nag.h>
#include <nagx04.h>
#include <nag_stdlib.h>
#include <nagg05.h>

int main(int argc, char *argv[])
{
  FILE    *fpout;
  /* Scalars */
  Integer exit_status = 0;
  double  x;
  Integer i, igen;
  /* Arrays */
  Integer iseed[4];

  /* Check for command-line IO options */
  fpout = nag_example_file_io(argc, argv, "-results", NULL);

  fprintf(fpout,
          "nag_rngs_init_repeatable (g05kbc) Example Program Results\n\n");

  /* Initialise the seed */
  iseed[0] = 1762543;
  iseed[1] = 9324783;
  iseed[2] = 42344;
  iseed[3] = 742355;
  /* igen identifies the stream. */
  igen = 1;
  /* nag_rngs_init_repeatable (g05kbc).
   * Initialize seeds of a given generator for random number
   * generating functions (that pass seeds explicitly) to give
   * a repeatable sequence
   */
  nag_rngs_init_repeatable(&igen, iseed);

  for (i = 1; i <= 5; ++i)
    {
      /* nag_rngs_basic (g05kac).
       * Pseudo-random real numbers, uniform distribution over
       * (0,1), seeds and generator number passed explicitly
       */
      x = nag_rngs_basic(igen, iseed);
      fprintf(fpout, "%10.4f\n", x);
    }

  if (fpout != stdout) fclose(fpout);
  return exit_status;
}