LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ztprfb_work()

lapack_int LAPACKE_ztprfb_work ( int  matrix_layout,
char  side,
char  trans,
char  direct,
char  storev,
lapack_int  m,
lapack_int  n,
lapack_int  k,
lapack_int  l,
const lapack_complex_double v,
lapack_int  ldv,
const lapack_complex_double t,
lapack_int  ldt,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double work,
lapack_int  ldwork 
)

Definition at line 36 of file lapacke_ztprfb_work.c.

44 {
45  lapack_int info = 0;
46  if( matrix_layout == LAPACK_COL_MAJOR ) {
47  /* Call LAPACK function and adjust info */
48  LAPACK_ztprfb( &side, &trans, &direct, &storev, &m, &n, &k, &l, v, &ldv,
49  t, &ldt, a, &lda, b, &ldb, work, &ldwork );
50  if( info < 0 ) {
51  info = info - 1;
52  }
53  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
54  lapack_int lda_t = MAX(1,k);
55  lapack_int ldb_t = MAX(1,m);
56  lapack_int ldt_t = MAX(1,ldt);
57  lapack_int ldv_t = MAX(1,ldv);
58  lapack_complex_double* v_t = NULL;
59  lapack_complex_double* t_t = NULL;
60  lapack_complex_double* a_t = NULL;
61  lapack_complex_double* b_t = NULL;
62  /* Check leading dimension(s) */
63  if( lda < m ) {
64  info = -15;
65  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
66  return info;
67  }
68  if( ldb < n ) {
69  info = -17;
70  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
71  return info;
72  }
73  if( ldt < k ) {
74  info = -13;
75  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
76  return info;
77  }
78  if( ldv < k ) {
79  info = -11;
80  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
81  return info;
82  }
83  /* Allocate memory for temporary array(s) */
84  v_t = (lapack_complex_double*)
85  LAPACKE_malloc( sizeof(lapack_complex_double) * ldv_t * MAX(1,k) );
86  if( v_t == NULL ) {
88  goto exit_level_0;
89  }
90  t_t = (lapack_complex_double*)
91  LAPACKE_malloc( sizeof(lapack_complex_double) * ldt_t * MAX(1,k) );
92  if( t_t == NULL ) {
94  goto exit_level_1;
95  }
96  a_t = (lapack_complex_double*)
97  LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,m) );
98  if( a_t == NULL ) {
100  goto exit_level_2;
101  }
102  b_t = (lapack_complex_double*)
103  LAPACKE_malloc( sizeof(lapack_complex_double) * ldb_t * MAX(1,n) );
104  if( b_t == NULL ) {
106  goto exit_level_3;
107  }
108  /* Transpose input matrices */
109  LAPACKE_zge_trans( matrix_layout, ldv, k, v, ldv, v_t, ldv_t );
110  LAPACKE_zge_trans( matrix_layout, ldt, k, t, ldt, t_t, ldt_t );
111  LAPACKE_zge_trans( matrix_layout, k, m, a, lda, a_t, lda_t );
112  LAPACKE_zge_trans( matrix_layout, m, n, b, ldb, b_t, ldb_t );
113  /* Call LAPACK function and adjust info */
114  LAPACK_ztprfb( &side, &trans, &direct, &storev, &m, &n, &k, &l, v_t,
115  &ldv_t, t_t, &ldt_t, a_t, &lda_t, b_t, &ldb_t, work,
116  &ldwork );
117  info = 0; /* LAPACK call is ok! */
118  /* Transpose output matrices */
119  LAPACKE_zge_trans( LAPACK_COL_MAJOR, k, m, a_t, lda_t, a, lda );
120  LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
121  /* Release memory and exit */
122  LAPACKE_free( b_t );
123 exit_level_3:
124  LAPACKE_free( a_t );
125 exit_level_2:
126  LAPACKE_free( t_t );
127 exit_level_1:
128  LAPACKE_free( v_t );
129 exit_level_0:
130  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
131  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
132  }
133  } else {
134  info = -1;
135  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
136  }
137  return info;
138 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_double
Definition: lapacke.h:90
void LAPACK_ztprfb(char *side, char *trans, char *direct, char *storev, lapack_int *m, lapack_int *n, lapack_int *k, lapack_int *l, const lapack_complex_double *v, lapack_int *ldv, const lapack_complex_double *t, lapack_int *ldt, lapack_complex_double *a, lapack_int *lda, lapack_complex_double *b, lapack_int *ldb, lapack_complex_double *work, lapack_int *ldwork)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
void LAPACKE_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
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