LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dgemqrt()

lapack_int LAPACKE_dgemqrt ( int  matrix_layout,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
lapack_int  nb,
const double *  v,
lapack_int  ldv,
const double *  t,
lapack_int  ldt,
double *  c,
lapack_int  ldc 
)

Definition at line 36 of file lapacke_dgemqrt.c.

41 {
42  lapack_int nrows_v;
43  lapack_int info = 0;
44  double* work = NULL;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_dgemqrt", -1 );
47  return -1;
48  }
49 #ifndef LAPACK_DISABLE_NAN_CHECK
50  /* Optionally check input matrices for NaNs */
51  nrows_v = LAPACKE_lsame( side, 'L' ) ? m :
52  ( LAPACKE_lsame( side, 'R' ) ? n : 0 );
53  if( LAPACKE_dge_nancheck( matrix_layout, m, n, c, ldc ) ) {
54  return -12;
55  }
56  if( LAPACKE_dge_nancheck( matrix_layout, nb, k, t, ldt ) ) {
57  return -10;
58  }
59  if( LAPACKE_dge_nancheck( matrix_layout, nrows_v, k, v, ldv ) ) {
60  return -8;
61  }
62 #endif
63  /* Allocate memory for working array(s) */
64  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,m) * MAX(1,nb) );
65  if( work == NULL ) {
67  goto exit_level_0;
68  }
69  /* Call middle-level interface */
70  info = LAPACKE_dgemqrt_work( matrix_layout, side, trans, m, n, k, nb, v, ldv,
71  t, ldt, c, ldc, work );
72  /* Release memory and exit */
73  LAPACKE_free( work );
74 exit_level_0:
75  if( info == LAPACK_WORK_MEMORY_ERROR ) {
76  LAPACKE_xerbla( "LAPACKE_dgemqrt", info );
77  }
78  return info;
79 }
#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
#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)
lapack_int LAPACKE_dgemqrt_work(int matrix_layout, char side, char trans, lapack_int m, lapack_int n, lapack_int k, lapack_int nb, const double *v, lapack_int ldv, const double *t, lapack_int ldt, double *c, lapack_int ldc, double *work)
#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
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