LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dlag2s_work()

lapack_int LAPACKE_dlag2s_work ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
const double *  a,
lapack_int  lda,
float *  sa,
lapack_int  ldsa 
)

Definition at line 36 of file lapacke_dlag2s_work.c.

39 {
40  lapack_int info = 0;
41  if( matrix_layout == LAPACK_COL_MAJOR ) {
42  /* Call LAPACK function and adjust info */
43  LAPACK_dlag2s( &m, &n, a, &lda, sa, &ldsa, &info );
44  if( info < 0 ) {
45  info = info - 1;
46  }
47  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
48  lapack_int lda_t = MAX(1,m);
49  lapack_int ldsa_t = MAX(1,m);
50  double* a_t = NULL;
51  float* sa_t = NULL;
52  /* Check leading dimension(s) */
53  if( lda < n ) {
54  info = -5;
55  LAPACKE_xerbla( "LAPACKE_dlag2s_work", info );
56  return info;
57  }
58  if( ldsa < n ) {
59  info = -7;
60  LAPACKE_xerbla( "LAPACKE_dlag2s_work", info );
61  return info;
62  }
63  /* Allocate memory for temporary array(s) */
64  a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
65  if( a_t == NULL ) {
67  goto exit_level_0;
68  }
69  sa_t = (float*)LAPACKE_malloc( sizeof(float) * ldsa_t * MAX(1,n) );
70  if( sa_t == NULL ) {
72  goto exit_level_1;
73  }
74  /* Transpose input matrices */
75  LAPACKE_dge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
76  /* Call LAPACK function and adjust info */
77  LAPACK_dlag2s( &m, &n, a_t, &lda_t, sa_t, &ldsa_t, &info );
78  if( info < 0 ) {
79  info = info - 1;
80  }
81  /* Transpose output matrices */
82  LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, sa_t, ldsa_t, sa, ldsa );
83  /* Release memory and exit */
84  LAPACKE_free( sa_t );
85 exit_level_1:
86  LAPACKE_free( a_t );
87 exit_level_0:
88  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
89  LAPACKE_xerbla( "LAPACKE_dlag2s_work", info );
90  }
91  } else {
92  info = -1;
93  LAPACKE_xerbla( "LAPACKE_dlag2s_work", info );
94  }
95  return info;
96 }
void LAPACKE_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
void LAPACK_dlag2s(lapack_int *m, lapack_int *n, const double *a, lapack_int *lda, float *sa, lapack_int *ldsa, lapack_int *info)
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#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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