LAPACK  3.8.0
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 36 of file lapacke_dopmtr.c.

39 {
40  lapack_int info = 0;
41  /* Additional scalars declarations for work arrays */
42  lapack_int lwork;
43  double* work = NULL;
44  lapack_int r;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_dopmtr", -1 );
47  return -1;
48  }
49 #ifndef LAPACK_DISABLE_NAN_CHECK
50  if( LAPACKE_get_nancheck() ) {
51  /* Optionally check input matrices for NaNs */
52  r = LAPACKE_lsame( side, 'l' ) ? m : n;
53  if( LAPACKE_dsp_nancheck( r, ap ) ) {
54  return -7;
55  }
56  if( LAPACKE_dge_nancheck( matrix_layout, m, n, c, ldc ) ) {
57  return -9;
58  }
59  if( LAPACKE_d_nancheck( m-1, tau, 1 ) ) {
60  return -8;
61  }
62  }
63 #endif
64  /* Additional scalars initializations for work arrays */
65  if( LAPACKE_lsame( side, 'l' ) ) {
66  lwork = MAX(1,n);
67  } else if( LAPACKE_lsame( side, 'r' ) ) {
68  lwork = MAX(1,m);
69  } else {
70  lwork = 1; /* Any value */
71  }
72  /* Allocate memory for working array(s) */
73  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
74  if( work == NULL ) {
76  goto exit_level_0;
77  }
78  /* Call middle-level interface */
79  info = LAPACKE_dopmtr_work( matrix_layout, side, uplo, trans, m, n, ap, tau,
80  c, ldc, work );
81  /* Release memory and exit */
82  LAPACKE_free( work );
83 exit_level_0:
84  if( info == LAPACK_WORK_MEMORY_ERROR ) {
85  LAPACKE_xerbla( "LAPACKE_dopmtr", info );
86  }
87  return info;
88 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
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 MAX(x, y)
Definition: lapacke_utils.h:47
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
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)
lapack_logical LAPACKE_dsp_nancheck(lapack_int n, const double *ap)
#define lapack_int
Definition: lapacke.h:47
int LAPACKE_get_nancheck()
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