LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_slascl_work()

lapack_int LAPACKE_slascl_work ( int  matrix_layout,
char  type,
lapack_int  kl,
lapack_int  ku,
float  cfrom,
float  cto,
lapack_int  m,
lapack_int  n,
float *  a,
lapack_int  lda 
)

Definition at line 36 of file lapacke_slascl_work.c.

40 {
41  lapack_int info = 0;
42  if( matrix_layout == LAPACK_COL_MAJOR ) {
43  /* Call LAPACK function and adjust info */
44  LAPACK_slascl( &type, &kl, &ku, &cfrom, &cto, &m, &n, a, &lda, &info);
45  if( info < 0 ) {
46  info = info - 1;
47  }
48  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
49  lapack_int nrows_a = LAPACKE_lsame(type, 'b') ? kl + 1 :
50  LAPACKE_lsame(type, 'q') ? ku + 1 :
51  LAPACKE_lsame(type, 'z') ? 2 * kl + ku + 1 : m;
52  lapack_int lda_t = MAX(1,nrows_a);
53  float* a_t = NULL;
54  /* Check leading dimension(s) */
55  if( lda < n ) {
56  info = -9;
57  LAPACKE_xerbla( "LAPACKE_slascl_work", info );
58  return info;
59  }
60  /* Allocate memory for temporary array(s) */
61  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
62  if( a_t == NULL ) {
64  goto exit_level_0;
65  }
66  /* Transpose input matrices */
67  LAPACKE_sge_trans( matrix_layout, nrows_a, n, a, lda, a_t, lda_t );
68  /* Call LAPACK function and adjust info */
69  LAPACK_slascl( &type, &kl, &ku, &cfrom, &cto, &m, &n, a_t, &lda_t, &info);
70  if( info < 0 ) {
71  info = info - 1;
72  }
73  /* Transpose output matrices */
74  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_a, n, a_t, lda_t, a, lda );
75  /* Release memory and exit */
76  LAPACKE_free( a_t );
77 exit_level_0:
78  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
79  LAPACKE_xerbla( "LAPACKE_slascl_work", info );
80  }
81  } else {
82  info = -1;
83  LAPACKE_xerbla( "LAPACKE_slascl_work", info );
84  }
85  return info;
86 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#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 LAPACK_slascl(char *type, lapack_int *kl, lapack_int *ku, float *cfrom, float *cto, lapack_int *m, lapack_int *n, float *a, lapack_int *lda, lapack_int *info)
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
Here is the call graph for this function:
Here is the caller graph for this function: