LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ctprfb()

lapack_int LAPACKE_ctprfb ( 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_float v,
lapack_int  ldv,
const lapack_complex_float t,
lapack_int  ldt,
lapack_complex_float a,
lapack_int  lda,
lapack_complex_float b,
lapack_int  ldb 
)

Definition at line 36 of file lapacke_ctprfb.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_float* work = NULL;
49  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
50  LAPACKE_xerbla( "LAPACKE_ctprfb", -1 );
51  return -1;
52  }
53 #ifndef LAPACK_DISABLE_NAN_CHECK
54  if( LAPACKE_get_nancheck() ) {
55  /* Optionally check input matrices for NaNs */
56  if( LAPACKE_lsame( storev, 'C' ) ) {
57  ncols_v = k;
58  nrows_v = LAPACKE_lsame( side, 'L' ) ? m :
59  ( LAPACKE_lsame( side, 'R' ) ? n : 0 );
60  } else if( LAPACKE_lsame( storev, 'R' ) ) {
61  ncols_v = LAPACKE_lsame( side, 'L' ) ? m :
62  ( LAPACKE_lsame( side, 'R' ) ? n : 0 );
63  nrows_v = k;
64  } else {
65  ncols_v = 0;
66  nrows_v = 0;
67  }
68  if( LAPACKE_cge_nancheck( matrix_layout, k, m, a, lda ) ) {
69  return -14;
70  }
71  if( LAPACKE_cge_nancheck( matrix_layout, m, n, b, ldb ) ) {
72  return -16;
73  }
74  if( LAPACKE_cge_nancheck( matrix_layout, k, k, t, ldt ) ) {
75  return -12;
76  }
77  if( LAPACKE_cge_nancheck( matrix_layout, nrows_v, ncols_v, v, ldv ) ) {
78  return -10;
79  }
80  }
81 #endif
82  if (side=='l' || side=='L') {
83  ldwork = k;
84  work_size = MAX(1,ldwork) * MAX(1,n);
85  }
86  else {
87  ldwork = m;
88  work_size = MAX(1,ldwork) * MAX(1,k);
89  }
90  /* Allocate memory for working array(s) */
91  work = (lapack_complex_float*)
92  LAPACKE_malloc( sizeof(lapack_complex_float) * work_size );
93  if( work == NULL ) {
95  goto exit_level_0;
96  }
97  /* Call middle-level interface */
98  info = LAPACKE_ctprfb_work( matrix_layout, side, trans, direct, storev, m, n,
99  k, l, v, ldv, t, ldt, a, lda, b, ldb, work,
100  ldwork );
101  /* Release memory and exit */
102  LAPACKE_free( work );
103 exit_level_0:
104  if( info == LAPACK_WORK_MEMORY_ERROR ) {
105  LAPACKE_xerbla( "LAPACKE_ctprfb", info );
106  }
107  return info;
108 }
#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_float
Definition: lapacke.h:74
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
#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)
#define lapack_int
Definition: lapacke.h:47
lapack_int LAPACKE_ctprfb_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_float *v, lapack_int ldv, const lapack_complex_float *t, lapack_int ldt, lapack_complex_float *a, lapack_int lda, lapack_complex_float *b, lapack_int ldb, lapack_complex_float *work, lapack_int ldwork)
int LAPACKE_get_nancheck()
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