LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_stfttp_work()

lapack_int LAPACKE_stfttp_work ( int  matrix_layout,
char  transr,
char  uplo,
lapack_int  n,
const float *  arf,
float *  ap 
)

Definition at line 36 of file lapacke_stfttp_work.c.

38 {
39  lapack_int info = 0;
40  if( matrix_layout == LAPACK_COL_MAJOR ) {
41  /* Call LAPACK function and adjust info */
42  LAPACK_stfttp( &transr, &uplo, &n, arf, ap, &info );
43  if( info < 0 ) {
44  info = info - 1;
45  }
46  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
47  float* ap_t = NULL;
48  float* arf_t = NULL;
49  /* Allocate memory for temporary array(s) */
50  ap_t = (float*)
51  LAPACKE_malloc( sizeof(float) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
52  if( ap_t == NULL ) {
54  goto exit_level_0;
55  }
56  arf_t = (float*)
57  LAPACKE_malloc( sizeof(float) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
58  if( arf_t == NULL ) {
60  goto exit_level_1;
61  }
62  /* Transpose input matrices */
63  LAPACKE_spf_trans( matrix_layout, transr, uplo, n, arf, arf_t );
64  /* Call LAPACK function and adjust info */
65  LAPACK_stfttp( &transr, &uplo, &n, arf_t, ap_t, &info );
66  if( info < 0 ) {
67  info = info - 1;
68  }
69  /* Transpose output matrices */
70  LAPACKE_spp_trans( LAPACK_COL_MAJOR, uplo, n, ap_t, ap );
71  /* Release memory and exit */
72  LAPACKE_free( arf_t );
73 exit_level_1:
74  LAPACKE_free( ap_t );
75 exit_level_0:
76  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
77  LAPACKE_xerbla( "LAPACKE_stfttp_work", info );
78  }
79  } else {
80  info = -1;
81  LAPACKE_xerbla( "LAPACKE_stfttp_work", info );
82  }
83  return info;
84 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
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: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)
#define lapack_int
Definition: lapacke.h:47
void LAPACKE_spf_trans(int matrix_layout, char transr, char uplo, lapack_int n, const float *in, float *out)
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
void LAPACK_stfttp(char *transr, char *uplo, lapack_int *n, const float *arf, float *ap, lapack_int *info)
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