LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ztprfb()

lapack_int LAPACKE_ztprfb ( 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 
)

Definition at line 36 of file lapacke_ztprfb.c.

43 {
44  lapack_int ncols_v, nrows_v;
45  lapack_int info = 0;
46  lapack_int ldwork;
47  lapack_int work_size;
48  lapack_complex_double* work = NULL;
49  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
50  LAPACKE_xerbla( "LAPACKE_ztprfb", -1 );
51  return -1;
52  }
53 #ifndef LAPACK_DISABLE_NAN_CHECK
54  /* Optionally check input matrices for NaNs */
55  if( LAPACKE_lsame( storev, 'C' ) ) {
56  ncols_v = k;
57  nrows_v = LAPACKE_lsame( side, 'L' ) ? m :
58  ( LAPACKE_lsame( side, 'R' ) ? n : 0 );
59  } else if( LAPACKE_lsame( storev, 'R' ) ) {
60  ncols_v = LAPACKE_lsame( side, 'L' ) ? m :
61  ( LAPACKE_lsame( side, 'R' ) ? n : 0 );
62  nrows_v = k;
63  } else {
64  ncols_v = 0;
65  nrows_v = 0;
66  }
67  if( LAPACKE_zge_nancheck( matrix_layout, k, m, a, lda ) ) {
68  return -14;
69  }
70  if( LAPACKE_zge_nancheck( matrix_layout, m, n, b, ldb ) ) {
71  return -16;
72  }
73  if( LAPACKE_zge_nancheck( matrix_layout, k, k, t, ldt ) ) {
74  return -12;
75  }
76  if( LAPACKE_zge_nancheck( matrix_layout, nrows_v, ncols_v, v, ldv ) ) {
77  return -10;
78  }
79 #endif
80  if (side=='l' || side=='L') {
81  ldwork = k;
82  work_size = MAX(1,ldwork) * MAX(1,n);
83  }
84  else {
85  ldwork = m;
86  work_size = MAX(1,ldwork) * MAX(1,k);
87  }
88 
89  /* Allocate memory for working array(s) */
90  work = (lapack_complex_double*)
91  LAPACKE_malloc( sizeof(lapack_complex_double) * work_size );
92  if( work == NULL ) {
94  goto exit_level_0;
95  }
96  /* Call middle-level interface */
97  info = LAPACKE_ztprfb_work( matrix_layout, side, trans, direct, storev, m, n,
98  k, l, v, ldv, t, ldt, a, lda, b, ldb, work,
99  ldwork );
100  /* Release memory and exit */
101  LAPACKE_free( work );
102 exit_level_0:
103  if( info == LAPACK_WORK_MEMORY_ERROR ) {
104  LAPACKE_xerbla( "LAPACKE_ztprfb", info );
105  }
106  return info;
107 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_double
Definition: lapacke.h:90
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
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)
#define lapack_int
Definition: lapacke.h:47
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
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