/* nag_code_to_error_name (x04ndc) Example Program.
 *
 * Copyright 2021 Numerical Algorithms Group.
 *
 * Mark 27.3, 2021.
 */

#include <nag.h>
#include <stdio.h>

int main(void) {
  /* Scalars */
  Integer exit_status = 0;
  unsigned i;
  /* Pointers */
  const char *str_error = 0;

  int fail_code[] = {NE_BAD_PARAM,     NE_INCOMPAT_PARAM, NE_COMPLEX_ZERO,
                     NE_NOT_MONOTONIC, NE_TOO_MANY_ITER,  NE_SINGULAR,
                     NE_INITIALIZATION};

  printf("nag_code_to_error_name (x04ndc) Example Program Results\n\n");

  /* Print header. */
  printf("   Code value          Error name\n");
  printf("   ----------          ----------\n");

  /* Convert the error code to strings and print. */

  /* nag_code_to_error_name (x04ndc).
   * Converts NAG error code to its string value
   */
  for (i = 0; i < sizeof(fail_code) / sizeof(int); i++) {
    str_error = nag_code_to_error_name(fail_code[i]);
    if (str_error)
      printf("%7d              %-s\n", fail_code[i], str_error);
    else {
      exit_status = 1;
      goto END;
    }
  }
END:
  return exit_status;
}