LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_spptrf_work()

lapack_int LAPACKE_spptrf_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
float *  ap 
)

Definition at line 35 of file lapacke_spptrf_work.c.

37 {
38  lapack_int info = 0;
39  if( matrix_layout == LAPACK_COL_MAJOR ) {
40  /* Call LAPACK function and adjust info */
41  LAPACK_spptrf( &uplo, &n, ap, &info );
42  if( info < 0 ) {
43  info = info - 1;
44  }
45  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
46  float* ap_t = NULL;
47  /* Allocate memory for temporary array(s) */
48  ap_t = (float*)
49  LAPACKE_malloc( sizeof(float) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
50  if( ap_t == NULL ) {
52  goto exit_level_0;
53  }
54  /* Transpose input matrices */
55  LAPACKE_spp_trans( matrix_layout, uplo, n, ap, ap_t );
56  /* Call LAPACK function and adjust info */
57  LAPACK_spptrf( &uplo, &n, ap_t, &info );
58  if( info < 0 ) {
59  info = info - 1;
60  }
61  /* Transpose output matrices */
62  LAPACKE_spp_trans( LAPACK_COL_MAJOR, uplo, n, ap_t, ap );
63  /* Release memory and exit */
64  LAPACKE_free( ap_t );
65 exit_level_0:
66  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
67  LAPACKE_xerbla( "LAPACKE_spptrf_work", info );
68  }
69  } else {
70  info = -1;
71  LAPACKE_xerbla( "LAPACKE_spptrf_work", info );
72  }
73  return info;
74 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_spptrf(...)
Definition: lapack.h:14084
#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_spp_trans(int matrix_layout, char uplo, lapack_int n, const float *in, float *out)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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