LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_slag2d_work()

lapack_int LAPACKE_slag2d_work ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
const float *  sa,
lapack_int  ldsa,
double *  a,
lapack_int  lda 
)

Definition at line 35 of file lapacke_slag2d_work.c.

38 {
39  lapack_int info = 0;
40  if( matrix_layout == LAPACK_COL_MAJOR ) {
41  /* Call LAPACK function and adjust info */
42  LAPACK_slag2d( &m, &n, sa, &ldsa, 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,m);
48  lapack_int ldsa_t = MAX(1,m);
49  float* sa_t = NULL;
50  double* a_t = NULL;
51  /* Check leading dimension(s) */
52  if( lda < n ) {
53  info = -7;
54  LAPACKE_xerbla( "LAPACKE_slag2d_work", info );
55  return info;
56  }
57  if( ldsa < n ) {
58  info = -5;
59  LAPACKE_xerbla( "LAPACKE_slag2d_work", info );
60  return info;
61  }
62  /* Allocate memory for temporary array(s) */
63  sa_t = (float*)LAPACKE_malloc( sizeof(float) * ldsa_t * MAX(1,n) );
64  if( sa_t == NULL ) {
66  goto exit_level_0;
67  }
68  a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
69  if( a_t == NULL ) {
71  goto exit_level_1;
72  }
73  /* Transpose input matrices */
74  LAPACKE_sge_trans( matrix_layout, m, n, sa, ldsa, sa_t, ldsa_t );
75  /* Call LAPACK function and adjust info */
76  LAPACK_slag2d( &m, &n, sa_t, &ldsa_t, a_t, &lda_t, &info );
77  if( info < 0 ) {
78  info = info - 1;
79  }
80  /* Transpose output matrices */
81  LAPACKE_dge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
82  /* Release memory and exit */
83  LAPACKE_free( a_t );
84 exit_level_1:
85  LAPACKE_free( sa_t );
86 exit_level_0:
87  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
88  LAPACKE_xerbla( "LAPACKE_slag2d_work", info );
89  }
90  } else {
91  info = -1;
92  LAPACKE_xerbla( "LAPACKE_slag2d_work", info );
93  }
94  return info;
95 }
void LAPACK_slag2d(lapack_int const *m, lapack_int const *n, float const *SA, lapack_int const *ldsa, double *A, lapack_int const *lda, lapack_int *info)
#define lapack_int
Definition: lapack.h:83
#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_xerbla(const char *name, 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:46
void LAPACKE_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
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