```/* nag_dge_copy (f16qfc) Example Program.
*
* NAGPRODCODE Version.
*
* Copyright 2016 Numerical Algorithms Group.
*
* Mark 26, 2016.
*/

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

int main(void)
{

/* Scalars */
Integer bdim1, bdim2, exit_status, i, j, m, n, pda, pdb;

/* Arrays */
double *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]
order = Nag_ColMajor;
#else
#define A(I, J) a[(I-1)*pda + J - 1]
order = Nag_RowMajor;
#endif

exit_status = 0;
INIT_FAIL(fail);

printf("nag_dge_copy (f16qfc) Example Program Results\n\n");

/* Skip heading in data file */
scanf("%*[^\n] ");
/* Read the problem dimensions */
scanf("%" NAG_IFMT "%" NAG_IFMT "%*[^\n] ", &m, &n);
scanf("%39s%*[^\n] ", nag_enum_arg);
/* nag_enum_name_to_value (x04nac).
* Converts NAG enum member name to value
*/
trans = (Nag_TransType) 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, double)) || !(b = NAG_ALLOC(m * n, double)))
{
printf("Allocation failure\n");
exit_status = -1;
goto END;
}
}
else {
printf("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)
scanf("%lf", &A(i, j));
}
scanf("%*[^\n] ");

/* nag_dge_copy (f16qfc).
* General matrix copy.
*
*/
nag_dge_copy(order, trans, m, n, a, pda, b, pdb, &fail);
if (fail.code != NE_NOERROR) {
printf("Error from nag_dge_copy (f16qfc).\n%s\n", fail.message);
exit_status = 1;
goto END;
}

/* Print output */
/* nag_gen_real_mat_print (x04cac).
* Print real general matrix (easy-to-use)
*/
fflush(stdout);
nag_gen_real_mat_print(order, Nag_GeneralMatrix, Nag_NonUnitDiag,
bdim1, bdim2, b, pdb, "Copy of Input Matrix",
0, &fail);
if (fail.code != NE_NOERROR) {
printf("Error from nag_gen_real_mat_print (x04cac).\n%s\n", fail.message);
exit_status = 1;
goto END;
}

END:
NAG_FREE(a);
NAG_FREE(b);

return exit_status;
}
```