lapack_int LAPACKE_ztbrfs( int matrix_layout, char uplo, char trans, char diag,
lapack_int n, lapack_int kd, lapack_int nrhs,
const lapack_complex_double* ab, lapack_int ldab,
const lapack_complex_double* b, lapack_int ldb,
const lapack_complex_double* x, lapack_int ldx,
double* ferr, double* berr )
{
lapack_int info = 0;
double* rwork = NULL;
lapack_complex_double* work = NULL;
if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_ztbrfs", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
if( LAPACKE_get_nancheck() ) {
/* Optionally check input matrices for NaNs */
if( LAPACKE_ztb_nancheck( matrix_layout, uplo, diag, n, kd, ab, ldab ) ) {
return -8;
}
if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
return -10;
}
if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
return -12;
}
}
#endif
/* Allocate memory for working array(s) */
rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
if( rwork == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_0;
}
work = (lapack_complex_double*)
LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
if( work == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_ztbrfs_work( matrix_layout, uplo, trans, diag, n, kd, nrhs,
ab, ldab, 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_ztbrfs", info );
}
return info;
}
lapack_int LAPACKE_ztbtrs( int matrix_order, char uplo, char trans, char diag,
lapack_int n, lapack_int kd, lapack_int nrhs,
const lapack_complex_double* ab, lapack_int ldab,
lapack_complex_double* b, lapack_int ldb )
{
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_ztbtrs", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_ztb_nancheck( matrix_order, uplo, diag, n, kd, ab, ldab ) ) {
return -8;
}
if( LAPACKE_zge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
return -10;
}
#endif
return LAPACKE_ztbtrs_work( matrix_order, uplo, trans, diag, n, kd, nrhs,
ab, ldab, b, ldb );
}
