LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapacke_zheequb_work.c
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28 *****************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function zheequb
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_zheequb_work( int matrix_layout, char uplo, lapack_int n,
37  const lapack_complex_double* a, lapack_int lda,
38  double* s, double* scond, double* amax,
39  lapack_complex_double* work )
40 {
41  lapack_int info = 0;
42  if( matrix_layout == LAPACK_COL_MAJOR ) {
43  /* Call LAPACK function and adjust info */
44  LAPACK_zheequb( &uplo, &n, a, &lda, s, scond, amax, work, &info );
45  if( info < 0 ) {
46  info = info - 1;
47  }
48  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
49  lapack_int lda_t = MAX(1,n);
50  lapack_complex_double* a_t = NULL;
51  /* Check leading dimension(s) */
52  if( lda < n ) {
53  info = -5;
54  LAPACKE_xerbla( "LAPACKE_zheequb_work", info );
55  return info;
56  }
57  /* Allocate memory for temporary array(s) */
58  a_t = (lapack_complex_double*)
59  LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
60  if( a_t == NULL ) {
62  goto exit_level_0;
63  }
64  /* Transpose input matrices */
65  LAPACKE_zhe_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
66  /* Call LAPACK function and adjust info */
67  LAPACK_zheequb( &uplo, &n, a_t, &lda_t, s, scond, amax, work, &info );
68  if( info < 0 ) {
69  info = info - 1;
70  }
71  /* Release memory and exit */
72  LAPACKE_free( a_t );
73 exit_level_0:
74  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
75  LAPACKE_xerbla( "LAPACKE_zheequb_work", info );
76  }
77  } else {
78  info = -1;
79  LAPACKE_xerbla( "LAPACKE_zheequb_work", info );
80  }
81  return info;
82 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define lapack_complex_double
Definition: lapacke.h:90
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
void LAPACK_zheequb(char *uplo, lapack_int *n, const lapack_complex_double *a, lapack_int *lda, double *s, double *scond, double *amax, lapack_complex_double *work, lapack_int *info)
lapack_int LAPACKE_zheequb_work(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *a, lapack_int lda, double *s, double *scond, double *amax, lapack_complex_double *work)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACKE_zhe_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123