LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ztfttr_work()

lapack_int LAPACKE_ztfttr_work ( int  matrix_layout,
char  transr,
char  uplo,
lapack_int  n,
const lapack_complex_double arf,
lapack_complex_double a,
lapack_int  lda 
)

Definition at line 35 of file lapacke_ztfttr_work.c.

38 {
39  lapack_int info = 0;
40  if( matrix_layout == LAPACK_COL_MAJOR ) {
41  /* Call LAPACK function and adjust info */
42  LAPACK_ztfttr( &transr, &uplo, &n, arf, a, &lda, &info );
43  if( info < 0 ) {
44  info = info - 1;
45  }
46  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
47  lapack_int lda_t = MAX(1,n);
48  lapack_complex_double* a_t = NULL;
49  lapack_complex_double* arf_t = NULL;
50  /* Check leading dimension(s) */
51  if( lda < n ) {
52  info = -7;
53  LAPACKE_xerbla( "LAPACKE_ztfttr_work", info );
54  return info;
55  }
56  /* Allocate memory for temporary array(s) */
57  a_t = (lapack_complex_double*)
58  LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
59  if( a_t == NULL ) {
61  goto exit_level_0;
62  }
63  arf_t = (lapack_complex_double*)
65  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
66  if( arf_t == NULL ) {
68  goto exit_level_1;
69  }
70  /* Transpose input matrices */
71  LAPACKE_zpf_trans( matrix_layout, transr, uplo, n, arf, arf_t );
72  /* Call LAPACK function and adjust info */
73  LAPACK_ztfttr( &transr, &uplo, &n, arf_t, a_t, &lda_t, &info );
74  if( info < 0 ) {
75  info = info - 1;
76  }
77  /* Transpose output matrices */
78  LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
79  /* Release memory and exit */
80  LAPACKE_free( arf_t );
81 exit_level_1:
82  LAPACKE_free( a_t );
83 exit_level_0:
84  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
85  LAPACKE_xerbla( "LAPACKE_ztfttr_work", info );
86  }
87  } else {
88  info = -1;
89  LAPACKE_xerbla( "LAPACKE_ztfttr_work", info );
90  }
91  return info;
92 }
#define LAPACK_ztfttr(...)
Definition: lapack.h:20036
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
void LAPACKE_zpf_trans(int matrix_layout, char transr, char uplo, lapack_int n, const lapack_complex_double *in, lapack_complex_double *out)
void LAPACKE_xerbla(const char *name, lapack_int info)
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)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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