LAPACK  3.7.1
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 36 of file lapacke_ssyswapr_work.c.

39 {
40  lapack_int info = 0;
41  if( matrix_layout == LAPACK_COL_MAJOR ) {
42  /* Call LAPACK function and adjust info */
43  LAPACK_ssyswapr( &uplo, &n, a, &lda, &i1, &i2 );
44  if( info < 0 ) {
45  info = info - 1;
46  }
47  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
48  lapack_int lda_t = MAX(1,n);
49  float* a_t = NULL;
50  /* Allocate memory for temporary array(s) */
51  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
52  if( a_t == NULL ) {
54  goto exit_level_0;
55  }
56  /* Transpose input matrices */
57  LAPACKE_ssy_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
58  /* Call LAPACK function and adjust info */
59  LAPACK_ssyswapr( &uplo, &n, a_t, &lda_t, &i1, &i2 );
60  info = 0; /* LAPACK call is ok! */
61  /* Transpose output matrices */
62  LAPACKE_ssy_trans( LAPACK_COL_MAJOR, uplo, n, a_t, lda_t, a, lda );
63  /* Release memory and exit */
64  LAPACKE_free( a_t );
65 exit_level_0:
66  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
67  LAPACKE_xerbla( "LAPACKE_ssyswapr_work", info );
68  }
69  } else {
70  info = -1;
71  LAPACKE_xerbla( "LAPACKE_ssyswapr_work", info );
72  }
73  return info;
74 }
void LAPACKE_ssy_trans(int matrix_layout, char uplo, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#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)
void LAPACK_ssyswapr(char *uplo, lapack_int *n, float *a, lapack_int *lda, lapack_int *i1, lapack_int *i2)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
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