LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dopmtr()

lapack_int LAPACKE_dopmtr ( int  matrix_layout,
char  side,
char  uplo,
char  trans,
lapack_int  m,
lapack_int  n,
const double *  ap,
const double *  tau,
double *  c,
lapack_int  ldc 
)

Definition at line 35 of file lapacke_dopmtr.c.

38 {
39  lapack_int info = 0;
40  /* Additional scalars declarations for work arrays */
41  lapack_int lwork;
42  double* work = NULL;
43  lapack_int r;
44  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_dopmtr", -1 );
46  return -1;
47  }
48 #ifndef LAPACK_DISABLE_NAN_CHECK
49  if( LAPACKE_get_nancheck() ) {
50  /* Optionally check input matrices for NaNs */
51  r = LAPACKE_lsame( side, 'l' ) ? m : n;
52  if( LAPACKE_dsp_nancheck( r, ap ) ) {
53  return -7;
54  }
55  if( LAPACKE_dge_nancheck( matrix_layout, m, n, c, ldc ) ) {
56  return -9;
57  }
58  if( LAPACKE_d_nancheck( r-1, tau, 1 ) ) {
59  return -8;
60  }
61  }
62 #endif
63  /* Additional scalars initializations for work arrays */
64  if( LAPACKE_lsame( side, 'l' ) ) {
65  lwork = MAX(1,n);
66  } else if( LAPACKE_lsame( side, 'r' ) ) {
67  lwork = MAX(1,m);
68  } else {
69  lwork = 1; /* Any value */
70  }
71  /* Allocate memory for working array(s) */
72  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
73  if( work == NULL ) {
75  goto exit_level_0;
76  }
77  /* Call middle-level interface */
78  info = LAPACKE_dopmtr_work( matrix_layout, side, uplo, trans, m, n, ap, tau,
79  c, ldc, work );
80  /* Release memory and exit */
81  LAPACKE_free( work );
82 exit_level_0:
83  if( info == LAPACK_WORK_MEMORY_ERROR ) {
84  LAPACKE_xerbla( "LAPACKE_dopmtr", info );
85  }
86  return info;
87 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
lapack_int LAPACKE_dopmtr_work(int matrix_layout, char side, char uplo, char trans, lapack_int m, lapack_int n, const double *ap, const double *tau, double *c, lapack_int ldc, double *work)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
lapack_logical LAPACKE_dsp_nancheck(lapack_int n, const double *ap)
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