/* nag_blast_ztr_load (f16tgc) Example Program.
*
* Copyright 2023 Numerical Algorithms Group.
*
* Mark 29.0, 2023.
*/
#include <nag.h>
#include <stdio.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);
printf("nag_blast_ztr_load (f16tgc) Example Program Results\n\n");
/* Skip heading in data file */
scanf("%*[^\n] ");
/* Read the problem dimension */
scanf("%" NAG_IFMT "%*[^\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);
/* Read scalar parameters */
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;
}
/* nag_blast_ztr_load (f16tgc).
* Initialize complex triangular matrix.
*
*/
nag_blast_ztr_load(order, uplo, n, alpha, diag, a, pda, &fail);
if (fail.code != NE_NOERROR) {
printf("Error from nag_blast_ztr_load.\n%s\n", fail.message);
exit_status = 1;
goto END;
}
if (uplo == Nag_Upper) {
matrix = Nag_UpperMatrix;
} else {
matrix = Nag_LowerMatrix;
}
/* Print generated matrix A */
/* nag_file_print_matrix_complex_gen_comp (x04dbc).
* Print complex general matrix (comprehensive)
*/
fflush(stdout);
nag_file_print_matrix_complex_gen_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_file_print_matrix_complex_gen_comp (x04dbc).\n%s"
"\n",
fail.message);
exit_status = 1;
goto END;
}
END:
NAG_FREE(a);
return exit_status;
}