LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_clarfx_work()

lapack_int LAPACKE_clarfx_work ( int  matrix_layout,
char  side,
lapack_int  m,
lapack_int  n,
const lapack_complex_float v,
lapack_complex_float  tau,
lapack_complex_float c,
lapack_int  ldc,
lapack_complex_float work 
)

Definition at line 36 of file lapacke_clarfx_work.c.

41 {
42  lapack_int info = 0;
43  if( matrix_layout == LAPACK_COL_MAJOR ) {
44  /* Call LAPACK function and adjust info */
45  LAPACK_clarfx( &side, &m, &n, v, &tau, c, &ldc, work );
46  if( info < 0 ) {
47  info = info - 1;
48  }
49  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
50  lapack_int ldc_t = MAX(1,m);
51  lapack_complex_float* c_t = NULL;
52  /* Check leading dimension(s) */
53  if( ldc < n ) {
54  info = -8;
55  LAPACKE_xerbla( "LAPACKE_clarfx_work", info );
56  return info;
57  }
58  /* Allocate memory for temporary array(s) */
59  c_t = (lapack_complex_float*)
60  LAPACKE_malloc( sizeof(lapack_complex_float) * ldc_t * MAX(1,n) );
61  if( c_t == NULL ) {
63  goto exit_level_0;
64  }
65  /* Transpose input matrices */
66  LAPACKE_cge_trans( matrix_layout, m, n, c, ldc, c_t, ldc_t );
67  /* Call LAPACK function and adjust info */
68  LAPACK_clarfx( &side, &m, &n, v, &tau, c_t, &ldc_t, work );
69  info = 0; /* LAPACK call is ok! */
70  /* Transpose output matrices */
71  LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
72  /* Release memory and exit */
73  LAPACKE_free( c_t );
74 exit_level_0:
75  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
76  LAPACKE_xerbla( "LAPACKE_clarfx_work", info );
77  }
78  } else {
79  info = -1;
80  LAPACKE_xerbla( "LAPACKE_clarfx_work", info );
81  }
82  return info;
83 }
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
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
void LAPACK_clarfx(char *side, lapack_int *m, lapack_int *n, const lapack_complex_float *v, lapack_complex_float *tau, lapack_complex_float *c, lapack_int *ldc, lapack_complex_float *work)
#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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