/* nag_zge_load (f16thc) Example Program.
 *
 * Copyright 2005 Numerical Algorithms Group.
 *
 * Mark 8, 2005.
 */

#include <stdio.h>
#include <nag.h>
#include <nag_stdlib.h>
#include <nagf16.h>
#include <nagx04.h>

int main(int argc, char *argv[])
{
  FILE          *fpin, *fpout;
  char          *outfile = 0;

  /* Scalars */
  Complex       alpha, diag;
  Integer       exit_status, m, n, pda;

  /* Arrays */
  Complex       *a = 0;

  /* Nag Types */
  NagError      fail;
  Nag_OrderType order;

#ifdef NAG_COLUMN_MAJOR
  order = Nag_ColMajor;
#else
  order = Nag_RowMajor;
#endif

  exit_status = 0;
  INIT_FAIL(fail);

  /* Check for command-line IO options */
  fpin = nag_example_file_io(argc, argv, "-data", NULL);
  fpout = nag_example_file_io(argc, argv, "-results", NULL);
  (void) nag_example_file_io(argc, argv, "-nag_write", &outfile);

  fprintf(fpout, "nag_zge_load (f16thc) Example Program Results\n\n");

  /* Skip heading in data file */
  fscanf(fpin, "%*[^\n] ");

  /* Read the problem dimensions */
  fscanf(fpin, "%ld%ld%*[^\n] ", &m, &n);

  /* Read scalar parameters */
  fscanf(fpin, " ( %lf , %lf ) ( %lf , %lf )%*[^\n] ",
         &alpha.re, &alpha.im, &diag.re, &diag.im);

#ifdef NAG_COLUMN_MAJOR
  pda = m;
#else
  pda = n;
#endif

  if (m > 0 && n > 0)
    {
      /* Allocate memory */
      if (!(a = NAG_ALLOC(m*n, Complex)))
        {
          fprintf(fpout, "Allocation failure\n");
          exit_status = -1;
          goto END;
        }
    }
  else
    {
      fprintf(fpout, "Invalid m or n\n");
      exit_status = 1;
      return exit_status;
    }

  /* nag_zge_load(f16thc).
   * Initialize complex general matrix.
   *
   */
  nag_zge_load(order, m, n, alpha, diag, a, pda, &fail);
  if (fail.code != NE_NOERROR)
    {
      fprintf(fpout, "Error from nag_zge_load.\n%s\n", fail.message);
      exit_status = 1;
      goto END;
    }

  /* Print generated matrix A */
  /* nag_gen_complx_mat_print_comp (x04dbc).
   * Print complex general matrix (comprehensive)
   */
  if (outfile) fclose(fpout);
  nag_gen_complx_mat_print_comp(order, Nag_GeneralMatrix,
                                Nag_NonUnitDiag, m, n, a, pda,
                                Nag_BracketForm, "%5.2f",
                                "Generated Matrix A", Nag_IntegerLabels,
                                0, Nag_IntegerLabels, 0, 80, 0, outfile,
                                &fail);
  if (outfile && !(fpout = fopen(outfile, "a")))
    {
      exit_status = 2;
      goto END;
    }
  if (fail.code != NE_NOERROR)
    {
      fprintf(fpout, "Error from nag_gen_complx_mat_print_comp (x04dbc).\n%s"
              "\n", fail.message);
      exit_status = 1;
      goto END;
    }

 END:
  if (fpin != stdin) fclose(fpin);
  if (fpout != stdout) fclose(fpout);
  if (a) NAG_FREE(a);

  return exit_status;
}