LAPACK  3.8.0
LAPACK: Linear Algebra PACKage
lapacke_dgesvj.c
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28 *****************************************************************************
29 * Contents: Native high-level C interface to LAPACK function dgesvj
30 * Author: Intel Corporation
31 * Generated June 2016
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_dgesvj( int matrix_layout, char joba, char jobu, char jobv,
37  lapack_int m, lapack_int n, double* a,
38  lapack_int lda, double* sva, lapack_int mv,
39  double* v, lapack_int ldv, double* stat )
40 {
41  lapack_int info = 0;
42  lapack_int lwork = MAX(6,m+n);
43  double* work = NULL;
44  lapack_int i;
45  lapack_int nrows_v;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_dgesvj", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  if( LAPACKE_get_nancheck() ) {
52  /* Optionally check input matrices for NaNs */
53  nrows_v = LAPACKE_lsame( jobv, 'v' ) ? MAX(0,n) :
54  ( LAPACKE_lsame( jobv, 'a' ) ? MAX(0,mv) : 0);
55  if( LAPACKE_dge_nancheck( matrix_layout, m, n, a, lda ) ) {
56  return -7;
57  }
58  if( LAPACKE_lsame( jobv, 'a' ) || LAPACKE_lsame( jobv, 'v' ) ) {
59  if( LAPACKE_dge_nancheck( matrix_layout, nrows_v, n, v, ldv ) ) {
60  return -11;
61  }
62  }
63  }
64 #endif
65  /* Allocate memory for working array(s) */
66  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
67  if( work == NULL ) {
69  goto exit_level_0;
70  }
71  work[0] = stat[0]; /* Significant if jobu = 'c' */
72  /* Call middle-level interface */
73  info = LAPACKE_dgesvj_work( matrix_layout, joba, jobu, jobv, m, n, a, lda,
74  sva, mv, v, ldv, work, lwork );
75  /* Backup significant data from working array(s) */
76  for( i=0; i<6; i++ ) {
77  stat[i] = work[i];
78  }
79  /* Release memory and exit */
80  LAPACKE_free( work );
81 exit_level_0:
82  if( info == LAPACK_WORK_MEMORY_ERROR ) {
83  LAPACKE_xerbla( "LAPACKE_dgesvj", info );
84  }
85  return info;
86 }
#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
lapack_int LAPACKE_dgesvj_work(int matrix_layout, char joba, char jobu, char jobv, lapack_int m, lapack_int n, double *a, lapack_int lda, double *sva, lapack_int mv, double *v, lapack_int ldv, double *work, lapack_int lwork)
lapack_int LAPACKE_dgesvj(int matrix_layout, char joba, char jobu, char jobv, lapack_int m, lapack_int n, double *a, lapack_int lda, double *sva, lapack_int mv, double *v, lapack_int ldv, double *stat)
#define MAX(x, y)
Definition: lapacke_utils.h:47
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
#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
int LAPACKE_get_nancheck()