LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ssyswapr_work()

lapack_int LAPACKE_ssyswapr_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
float *  a,
lapack_int  lda,
lapack_int  i1,
lapack_int  i2 
)

Definition at line 35 of file lapacke_ssyswapr_work.c.

38 {
39  lapack_int info = 0;
40  if( matrix_layout == LAPACK_COL_MAJOR ) {
41  /* Call LAPACK function and adjust info */
42  LAPACK_ssyswapr( &uplo, &n, a, &lda, &i1, &i2 );
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  float* a_t = NULL;
49  /* Allocate memory for temporary array(s) */
50  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
51  if( a_t == NULL ) {
53  goto exit_level_0;
54  }
55  /* Transpose input matrices */
56  LAPACKE_ssy_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
57  /* Call LAPACK function and adjust info */
58  LAPACK_ssyswapr( &uplo, &n, a_t, &lda_t, &i1, &i2 );
59  info = 0; /* LAPACK call is ok! */
60  /* Transpose output matrices */
61  LAPACKE_ssy_trans( LAPACK_COL_MAJOR, uplo, n, a_t, lda_t, a, lda );
62  /* Release memory and exit */
63  LAPACKE_free( a_t );
64 exit_level_0:
65  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
66  LAPACKE_xerbla( "LAPACKE_ssyswapr_work", info );
67  }
68  } else {
69  info = -1;
70  LAPACKE_xerbla( "LAPACKE_ssyswapr_work", info );
71  }
72  return info;
73 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_ssyswapr(...)
Definition: lapack.h:18391
#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_ssy_trans(int matrix_layout, char uplo, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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