LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapack_int LAPACKE_ssptri_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
float *  ap,
const lapack_int ipiv,
float *  work 
)

Definition at line 36 of file lapacke_ssptri_work.c.

38 {
39  lapack_int info = 0;
40  if( matrix_layout == LAPACK_COL_MAJOR ) {
41  /* Call LAPACK function and adjust info */
42  LAPACK_ssptri( &uplo, &n, ap, ipiv, work, &info );
43  if( info < 0 ) {
44  info = info - 1;
45  }
46  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
47  float* ap_t = NULL;
48  /* Allocate memory for temporary array(s) */
49  ap_t = (float*)
50  LAPACKE_malloc( sizeof(float) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
51  if( ap_t == NULL ) {
53  goto exit_level_0;
54  }
55  /* Transpose input matrices */
56  LAPACKE_ssp_trans( matrix_layout, uplo, n, ap, ap_t );
57  /* Call LAPACK function and adjust info */
58  LAPACK_ssptri( &uplo, &n, ap_t, ipiv, work, &info );
59  if( info < 0 ) {
60  info = info - 1;
61  }
62  /* Transpose output matrices */
63  LAPACKE_ssp_trans( LAPACK_COL_MAJOR, uplo, n, ap_t, ap );
64  /* Release memory and exit */
65  LAPACKE_free( ap_t );
66 exit_level_0:
67  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
68  LAPACKE_xerbla( "LAPACKE_ssptri_work", info );
69  }
70  } else {
71  info = -1;
72  LAPACKE_xerbla( "LAPACKE_ssptri_work", info );
73  }
74  return info;
75 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
void LAPACKE_ssp_trans(int matrix_layout, char uplo, lapack_int n, const float *in, float *out)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_free(p)
Definition: lapacke.h:113
#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
void LAPACK_ssptri(char *uplo, lapack_int *n, float *ap, const lapack_int *ipiv, float *work, lapack_int *info)

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