lapack_int LAPACKE_ctrrfs( int matrix_order, char uplo, char trans, char diag,
lapack_int n, lapack_int nrhs,
const lapack_complex_float* a, lapack_int lda,
const lapack_complex_float* b, lapack_int ldb,
const lapack_complex_float* x, lapack_int ldx,
float* ferr, float* berr )
{
lapack_int info = 0;
float* rwork = NULL;
lapack_complex_float* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_ctrrfs", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_ctr_nancheck( matrix_order, uplo, diag, n, a, lda ) ) {
return -7;
}
if( LAPACKE_cge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
return -9;
}
if( LAPACKE_cge_nancheck( matrix_order, n, nrhs, x, ldx ) ) {
return -11;
}
#endif
/* Allocate memory for working array(s) */
rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
if( rwork == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_0;
}
work = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
if( work == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_ctrrfs_work( matrix_order, uplo, trans, diag, n, nrhs, a,
lda, b, ldb, x, ldx, ferr, berr, work, rwork );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_1:
LAPACKE_free( rwork );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_ctrrfs", info );
}
return info;
}
int main(void)
{
/* Local scalars */
char uplo, uplo_i;
char trans, trans_i;
char diag, diag_i;
lapack_int n, n_i;
lapack_int nrhs, nrhs_i;
lapack_int lda, lda_i;
lapack_int lda_r;
lapack_int ldb, ldb_i;
lapack_int ldb_r;
lapack_int ldx, ldx_i;
lapack_int ldx_r;
lapack_int info, info_i;
lapack_int i;
int failed;
/* Local arrays */
lapack_complex_float *a = NULL, *a_i = NULL;
lapack_complex_float *b = NULL, *b_i = NULL;
lapack_complex_float *x = NULL, *x_i = NULL;
float *ferr = NULL, *ferr_i = NULL;
float *berr = NULL, *berr_i = NULL;
lapack_complex_float *work = NULL, *work_i = NULL;
float *rwork = NULL, *rwork_i = NULL;
float *ferr_save = NULL;
float *berr_save = NULL;
lapack_complex_float *a_r = NULL;
lapack_complex_float *b_r = NULL;
lapack_complex_float *x_r = NULL;
/* Iniitialize the scalar parameters */
init_scalars_ctrrfs( &uplo, &trans, &diag, &n, &nrhs, &lda, &ldb, &ldx );
lda_r = n+2;
ldb_r = nrhs+2;
ldx_r = nrhs+2;
uplo_i = uplo;
trans_i = trans;
diag_i = diag;
n_i = n;
nrhs_i = nrhs;
lda_i = lda;
ldb_i = ldb;
ldx_i = ldx;
/* Allocate memory for the LAPACK routine arrays */
a = (lapack_complex_float *)
LAPACKE_malloc( lda*n * sizeof(lapack_complex_float) );
b = (lapack_complex_float *)
LAPACKE_malloc( ldb*nrhs * sizeof(lapack_complex_float) );
x = (lapack_complex_float *)
LAPACKE_malloc( ldx*nrhs * sizeof(lapack_complex_float) );
ferr = (float *)LAPACKE_malloc( nrhs * sizeof(float) );
berr = (float *)LAPACKE_malloc( nrhs * sizeof(float) );
work = (lapack_complex_float *)
LAPACKE_malloc( 2*n * sizeof(lapack_complex_float) );
rwork = (float *)LAPACKE_malloc( n * sizeof(float) );
/* Allocate memory for the C interface function arrays */
a_i = (lapack_complex_float *)
LAPACKE_malloc( lda*n * sizeof(lapack_complex_float) );
b_i = (lapack_complex_float *)
LAPACKE_malloc( ldb*nrhs * sizeof(lapack_complex_float) );
x_i = (lapack_complex_float *)
LAPACKE_malloc( ldx*nrhs * sizeof(lapack_complex_float) );
ferr_i = (float *)LAPACKE_malloc( nrhs * sizeof(float) );
berr_i = (float *)LAPACKE_malloc( nrhs * sizeof(float) );
work_i = (lapack_complex_float *)
LAPACKE_malloc( 2*n * sizeof(lapack_complex_float) );
rwork_i = (float *)LAPACKE_malloc( n * sizeof(float) );
/* Allocate memory for the backup arrays */
ferr_save = (float *)LAPACKE_malloc( nrhs * sizeof(float) );
berr_save = (float *)LAPACKE_malloc( nrhs * sizeof(float) );
/* Allocate memory for the row-major arrays */
a_r = (lapack_complex_float *)
LAPACKE_malloc( n*(n+2) * sizeof(lapack_complex_float) );
b_r = (lapack_complex_float *)
LAPACKE_malloc( n*(nrhs+2) * sizeof(lapack_complex_float) );
x_r = (lapack_complex_float *)
LAPACKE_malloc( n*(nrhs+2) * sizeof(lapack_complex_float) );
/* Initialize input arrays */
init_a( lda*n, a );
init_b( ldb*nrhs, b );
init_x( ldx*nrhs, x );
init_ferr( nrhs, ferr );
init_berr( nrhs, berr );
init_work( 2*n, work );
init_rwork( n, rwork );
/* Backup the ouptut arrays */
for( i = 0; i < nrhs; i++ ) {
ferr_save[i] = ferr[i];
}
for( i = 0; i < nrhs; i++ ) {
berr_save[i] = berr[i];
}
/* Call the LAPACK routine */
ctrrfs_( &uplo, &trans, &diag, &n, &nrhs, a, &lda, b, &ldb, x, &ldx, ferr,
berr, work, rwork, &info );
/* Initialize input data, call the column-major middle-level
* interface to LAPACK routine and check the results */
for( i = 0; i < lda*n; i++ ) {
a_i[i] = a[i];
}
for( i = 0; i < ldb*nrhs; i++ ) {
b_i[i] = b[i];
}
for( i = 0; i < ldx*nrhs; i++ ) {
x_i[i] = x[i];
}
for( i = 0; i < nrhs; i++ ) {
ferr_i[i] = ferr_save[i];
}
for( i = 0; i < nrhs; i++ ) {
berr_i[i] = berr_save[i];
}
for( i = 0; i < 2*n; i++ ) {
work_i[i] = work[i];
}
for( i = 0; i < n; i++ ) {
rwork_i[i] = rwork[i];
}
info_i = LAPACKE_ctrrfs_work( LAPACK_COL_MAJOR, uplo_i, trans_i, diag_i,
n_i, nrhs_i, a_i, lda_i, b_i, ldb_i, x_i,
ldx_i, ferr_i, berr_i, work_i, rwork_i );
failed = compare_ctrrfs( ferr, ferr_i, berr, berr_i, info, info_i, nrhs );
if( failed == 0 ) {
printf( "PASSED: column-major middle-level interface to ctrrfs\n" );
} else {
printf( "FAILED: column-major middle-level interface to ctrrfs\n" );
}
/* Initialize input data, call the column-major high-level
* interface to LAPACK routine and check the results */
for( i = 0; i < lda*n; i++ ) {
a_i[i] = a[i];
}
for( i = 0; i < ldb*nrhs; i++ ) {
b_i[i] = b[i];
}
for( i = 0; i < ldx*nrhs; i++ ) {
x_i[i] = x[i];
}
for( i = 0; i < nrhs; i++ ) {
ferr_i[i] = ferr_save[i];
}
for( i = 0; i < nrhs; i++ ) {
berr_i[i] = berr_save[i];
}
for( i = 0; i < 2*n; i++ ) {
work_i[i] = work[i];
}
for( i = 0; i < n; i++ ) {
rwork_i[i] = rwork[i];
}
info_i = LAPACKE_ctrrfs( LAPACK_COL_MAJOR, uplo_i, trans_i, diag_i, n_i,
nrhs_i, a_i, lda_i, b_i, ldb_i, x_i, ldx_i, ferr_i,
berr_i );
failed = compare_ctrrfs( ferr, ferr_i, berr, berr_i, info, info_i, nrhs );
if( failed == 0 ) {
printf( "PASSED: column-major high-level interface to ctrrfs\n" );
} else {
printf( "FAILED: column-major high-level interface to ctrrfs\n" );
}
/* Initialize input data, call the row-major middle-level
* interface to LAPACK routine and check the results */
for( i = 0; i < lda*n; i++ ) {
a_i[i] = a[i];
}
for( i = 0; i < ldb*nrhs; i++ ) {
b_i[i] = b[i];
}
for( i = 0; i < ldx*nrhs; i++ ) {
x_i[i] = x[i];
}
for( i = 0; i < nrhs; i++ ) {
ferr_i[i] = ferr_save[i];
}
for( i = 0; i < nrhs; i++ ) {
berr_i[i] = berr_save[i];
}
for( i = 0; i < 2*n; i++ ) {
work_i[i] = work[i];
}
for( i = 0; i < n; i++ ) {
rwork_i[i] = rwork[i];
}
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, a_i, lda, a_r, n+2 );
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, b_i, ldb, b_r, nrhs+2 );
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_i, ldx, x_r, nrhs+2 );
info_i = LAPACKE_ctrrfs_work( LAPACK_ROW_MAJOR, uplo_i, trans_i, diag_i,
n_i, nrhs_i, a_r, lda_r, b_r, ldb_r, x_r,
ldx_r, ferr_i, berr_i, work_i, rwork_i );
failed = compare_ctrrfs( ferr, ferr_i, berr, berr_i, info, info_i, nrhs );
if( failed == 0 ) {
printf( "PASSED: row-major middle-level interface to ctrrfs\n" );
} else {
printf( "FAILED: row-major middle-level interface to ctrrfs\n" );
}
/* Initialize input data, call the row-major high-level
* interface to LAPACK routine and check the results */
for( i = 0; i < lda*n; i++ ) {
a_i[i] = a[i];
}
for( i = 0; i < ldb*nrhs; i++ ) {
b_i[i] = b[i];
}
for( i = 0; i < ldx*nrhs; i++ ) {
x_i[i] = x[i];
}
for( i = 0; i < nrhs; i++ ) {
ferr_i[i] = ferr_save[i];
}
for( i = 0; i < nrhs; i++ ) {
berr_i[i] = berr_save[i];
}
for( i = 0; i < 2*n; i++ ) {
work_i[i] = work[i];
}
for( i = 0; i < n; i++ ) {
rwork_i[i] = rwork[i];
}
/* Init row_major arrays */
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, a_i, lda, a_r, n+2 );
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, b_i, ldb, b_r, nrhs+2 );
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_i, ldx, x_r, nrhs+2 );
info_i = LAPACKE_ctrrfs( LAPACK_ROW_MAJOR, uplo_i, trans_i, diag_i, n_i,
nrhs_i, a_r, lda_r, b_r, ldb_r, x_r, ldx_r, ferr_i,
berr_i );
failed = compare_ctrrfs( ferr, ferr_i, berr, berr_i, info, info_i, nrhs );
if( failed == 0 ) {
printf( "PASSED: row-major high-level interface to ctrrfs\n" );
} else {
printf( "FAILED: row-major high-level interface to ctrrfs\n" );
}
/* Release memory */
if( a != NULL ) {
LAPACKE_free( a );
}
if( a_i != NULL ) {
LAPACKE_free( a_i );
}
if( a_r != NULL ) {
LAPACKE_free( a_r );
}
if( b != NULL ) {
LAPACKE_free( b );
}
if( b_i != NULL ) {
LAPACKE_free( b_i );
}
if( b_r != NULL ) {
LAPACKE_free( b_r );
}
if( x != NULL ) {
LAPACKE_free( x );
}
if( x_i != NULL ) {
LAPACKE_free( x_i );
}
if( x_r != NULL ) {
LAPACKE_free( x_r );
}
if( ferr != NULL ) {
LAPACKE_free( ferr );
}
if( ferr_i != NULL ) {
LAPACKE_free( ferr_i );
}
if( ferr_save != NULL ) {
LAPACKE_free( ferr_save );
}
if( berr != NULL ) {
LAPACKE_free( berr );
}
if( berr_i != NULL ) {
LAPACKE_free( berr_i );
}
if( berr_save != NULL ) {
LAPACKE_free( berr_save );
}
if( work != NULL ) {
LAPACKE_free( work );
}
if( work_i != NULL ) {
LAPACKE_free( work_i );
}
if( rwork != NULL ) {
LAPACKE_free( rwork );
}
if( rwork_i != NULL ) {
LAPACKE_free( rwork_i );
}
return 0;
}
