/* nag_zge_copy (f16tfc) 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 */
  Integer       bdim1, bdim2, exit_status, i, j, m, n, pda, pdb;

  /* Arrays */
  Complex       *a = 0, *b = 0;
  char          nag_enum_arg[40];

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

#ifdef NAG_COLUMN_MAJOR
#define A(I, J) a[(J-1)*pda + I - 1]
#define B(I, J) b[(J-1)*pdb + I - 1]
  order = Nag_ColMajor;
#else
#define A(I, J) a[(I-1)*pda + J - 1]
#define B(I, J) b[(I-1)*pdb + J - 1]
  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_copy (f16tfc) 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 trans */
  fscanf(fpin, "%s%*[^\n] ", nag_enum_arg);
  /* nag_enum_name_to_value(x04nac).
   * Converts NAG enum member name to value
   */
  trans = nag_enum_name_to_value(nag_enum_arg);

  if (order == Nag_ColMajor)
    {
      pda = m;
      if (trans == Nag_NoTrans)
        {
          pdb = m;
          bdim1 = pdb;
          bdim2 = n;
        }
      else
        {
          pdb = n;
          bdim1 = pdb;
          bdim2 = m;
        }
    }
  else
    {
      pda = n;
      if (trans == Nag_NoTrans)
        {
          pdb = n;
          bdim1 = m;
          bdim2 = pdb;
        }
      else
        {
          pdb = m;
          bdim1 = n;
          bdim2 = pdb;
        }
    }

  if (m > 0 && n > 0)
    {
      /* Allocate memory */
      if (!(a = NAG_ALLOC(m*n, Complex)) ||
          !(b = 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;
    }

  /* Read A from data file */
  for (i = 1; i <= m; ++i)
    {
      for (j = 1; j <= n; ++j)
        fscanf(fpin, " ( %lf , %lf )", &A(i, j).re, &A(i, j).im);
    }
  fscanf(fpin, "%*[^\n] ");

  /* nag_zge_copy(f16tfc).
   * Complex valued general matrix copy.
   *
   */
  nag_zge_copy(order, trans, m, n, a, pda, b, pdb, &fail);
  if (fail.code != NE_NOERROR)
    {
      fprintf(fpout, "Error from nag_zge_copy (f16tfc).\n%s\n", fail.message);
      exit_status = 1;
      goto END;
    }

  /* Print output */
  /* nag_gen_complx_mat_print (x04dac).
   * Print Complex general matrix (easy-to-use)
   */
  if (outfile) fclose(fpout);
  nag_gen_complx_mat_print(order, Nag_GeneralMatrix, Nag_NonUnitDiag,
                           bdim1, bdim2, b, pdb,
                           "Copy of Transposed Input Matrix", 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 (x04dac).\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);
  if (b) NAG_FREE(b);

  return exit_status;
}