```/* nag_ztr_load (f16tgc) Example Program.
*
* Copyright 2014 Numerical Algorithms Group.
*
* Mark 8, 2005.
*/

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

int main(void)
{

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

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

/* Nag Types */
NagError       fail;
Nag_OrderType  order;
Nag_UploType   uplo;
Nag_MatrixType matrix;

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

exit_status = 0;
INIT_FAIL(fail);

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

/* Read the problem dimension */
scanf("%ld%*[^\n] ", &n);

/* Read the uplo parameter */
scanf("%39s%*[^\n] ", nag_enum_arg);
/* nag_enum_name_to_value (x04nac).
* Converts NAG enum member name to value
*/
uplo = (Nag_UploType) nag_enum_name_to_value(nag_enum_arg);

scanf(" ( %lf , %lf ) ( %lf , %lf )%*[^\n] ",
&alpha.re, &alpha.im, &diag.re, &diag.im);

pda = n;

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

* Initialize complex triangular matrix.
*
*/
nag_ztr_load(order, uplo, n, alpha, diag, a, pda, &fail);
if (fail.code != NE_NOERROR)
{
exit_status = 1;
goto END;
}

if (uplo == Nag_Upper)
{
matrix = Nag_UpperMatrix;
}
else
{
matrix = Nag_LowerMatrix;
}
/* Print generated matrix A */
/* nag_gen_complx_mat_print_comp (x04dbc).
* Print complex general matrix (comprehensive)
*/
fflush(stdout);
nag_gen_complx_mat_print_comp(order, matrix, Nag_NonUnitDiag, n, n, a, pda,
Nag_BracketForm, "%5.2f", "Generated Matrix A",
Nag_IntegerLabels, 0, Nag_IntegerLabels, 0, 80,
0, 0, &fail);
if (fail.code != NE_NOERROR)
{
printf("Error from nag_gen_complx_mat_print_comp (x04dbc).\n%s"
"\n", fail.message);
exit_status = 1;
goto END;
}

END:
NAG_FREE(a);

return exit_status;
}
```