lapack_int LAPACKE_ctbcon_work( int matrix_order, char norm, char uplo,
char diag, lapack_int n, lapack_int kd,
const lapack_complex_float* ab, lapack_int ldab,
float* rcond, lapack_complex_float* work,
float* rwork )
{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_ctbcon( &norm, &uplo, &diag, &n, &kd, ab, &ldab, rcond, work,
rwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,kd+1);
lapack_complex_float* ab_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -8;
LAPACKE_xerbla( "LAPACKE_ctbcon_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
ab_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
/* Transpose input matrices */
LAPACKE_ctb_trans( matrix_order, uplo, diag, n, kd, ab, ldab, ab_t,
ldab_t );
/* Call LAPACK function and adjust info */
LAPACK_ctbcon( &norm, &uplo, &diag, &n, &kd, ab_t, &ldab_t, rcond, work,
rwork, &info );
if( info < 0 ) {
info = info - 1;
}
/* Release memory and exit */
LAPACKE_free( ab_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_ctbcon_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_ctbcon_work", info );
}
return info;
}
lapack_int LAPACKE_ctbrfs_work( int matrix_layout, char uplo, char trans,
char diag, lapack_int n, lapack_int kd,
lapack_int nrhs, const lapack_complex_float* ab,
lapack_int ldab, const lapack_complex_float* b,
lapack_int ldb, const lapack_complex_float* x,
lapack_int ldx, float* ferr, float* berr,
lapack_complex_float* work, float* rwork )
{
lapack_int info = 0;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_ctbrfs( &uplo, &trans, &diag, &n, &kd, &nrhs, ab, &ldab, b, &ldb,
x, &ldx, ferr, berr, work, rwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,kd+1);
lapack_int ldb_t = MAX(1,n);
lapack_int ldx_t = MAX(1,n);
lapack_complex_float* ab_t = NULL;
lapack_complex_float* b_t = NULL;
lapack_complex_float* x_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_ctbrfs_work", info );
return info;
}
if( ldb < nrhs ) {
info = -11;
LAPACKE_xerbla( "LAPACKE_ctbrfs_work", info );
return info;
}
if( ldx < nrhs ) {
info = -13;
LAPACKE_xerbla( "LAPACKE_ctbrfs_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
ab_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
b_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) *
ldb_t * MAX(1,nrhs) );
if( b_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_1;
}
x_t = (lapack_complex_float*)
LAPACKE_malloc( sizeof(lapack_complex_float) *
ldx_t * MAX(1,nrhs) );
if( x_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_2;
}
/* Transpose input matrices */
LAPACKE_ctb_trans( matrix_layout, uplo, diag, n, kd, ab, ldab, ab_t,
ldab_t );
LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
LAPACKE_cge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
/* Call LAPACK function and adjust info */
LAPACK_ctbrfs( &uplo, &trans, &diag, &n, &kd, &nrhs, ab_t, &ldab_t, b_t,
&ldb_t, x_t, &ldx_t, ferr, berr, work, rwork, &info );
if( info < 0 ) {
info = info - 1;
}
/* Release memory and exit */
LAPACKE_free( x_t );
exit_level_2:
LAPACKE_free( b_t );
exit_level_1:
LAPACKE_free( ab_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_ctbrfs_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_ctbrfs_work", info );
}
return info;
}
