LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ctpqrt2_work()

lapack_int LAPACKE_ctpqrt2_work ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
lapack_int  l,
lapack_complex_float a,
lapack_int  lda,
lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float t,
lapack_int  ldt 
)

Definition at line 36 of file lapacke_ctpqrt2_work.c.

41 {
42  lapack_int info = 0;
43  if( matrix_layout == LAPACK_COL_MAJOR ) {
44  /* Call LAPACK function and adjust info */
45  LAPACK_ctpqrt2( &m, &n, &l, a, &lda, b, &ldb, t, &ldt, &info );
46  if( info < 0 ) {
47  info = info - 1;
48  }
49  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
50  lapack_int lda_t = MAX(1,n);
51  lapack_int ldb_t = MAX(1,m);
52  lapack_int ldt_t = MAX(1,n);
53  lapack_complex_float* a_t = NULL;
54  lapack_complex_float* b_t = NULL;
55  lapack_complex_float* t_t = NULL;
56  /* Check leading dimension(s) */
57  if( lda < n ) {
58  info = -5;
59  LAPACKE_xerbla( "LAPACKE_ctpqrt2_work", info );
60  return info;
61  }
62  if( ldb < n ) {
63  info = -7;
64  LAPACKE_xerbla( "LAPACKE_ctpqrt2_work", info );
65  return info;
66  }
67  if( ldt < n ) {
68  info = -9;
69  LAPACKE_xerbla( "LAPACKE_ctpqrt2_work", info );
70  return info;
71  }
72  /* Allocate memory for temporary array(s) */
73  a_t = (lapack_complex_float*)
74  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
75  if( a_t == NULL ) {
77  goto exit_level_0;
78  }
79  b_t = (lapack_complex_float*)
80  LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,n) );
81  if( b_t == NULL ) {
83  goto exit_level_1;
84  }
85  t_t = (lapack_complex_float*)
86  LAPACKE_malloc( sizeof(lapack_complex_float) * ldt_t * MAX(1,n) );
87  if( t_t == NULL ) {
89  goto exit_level_2;
90  }
91  /* Transpose input matrices */
92  LAPACKE_cge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
93  LAPACKE_cge_trans( matrix_layout, m, n, b, ldb, b_t, ldb_t );
94  /* Call LAPACK function and adjust info */
95  LAPACK_ctpqrt2( &m, &n, &l, a_t, &lda_t, b_t, &ldb_t, t_t, &ldt_t, &info );
96  if( info < 0 ) {
97  info = info - 1;
98  }
99  /* Transpose output matrices */
100  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
101  LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
102  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, t_t, ldt_t, t, ldt );
103  /* Release memory and exit */
104  LAPACKE_free( t_t );
105 exit_level_2:
106  LAPACKE_free( b_t );
107 exit_level_1:
108  LAPACKE_free( a_t );
109 exit_level_0:
110  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
111  LAPACKE_xerbla( "LAPACKE_ctpqrt2_work", info );
112  }
113  } else {
114  info = -1;
115  LAPACKE_xerbla( "LAPACKE_ctpqrt2_work", info );
116  }
117  return info;
118 }
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
void LAPACK_ctpqrt2(lapack_int *m, lapack_int *n, lapack_int *l, lapack_complex_float *a, lapack_int *lda, lapack_complex_float *b, lapack_int *ldb, lapack_complex_float *t, lapack_int *ldt, lapack_int *info)
#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
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