LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapacke_dorgtr.c
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28 *****************************************************************************
29 * Contents: Native high-level C interface to LAPACK function dorgtr
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_dorgtr( int matrix_layout, char uplo, lapack_int n, double* a,
37  lapack_int lda, const double* tau )
38 {
39  lapack_int info = 0;
40  lapack_int lwork = -1;
41  double* work = NULL;
42  double work_query;
43  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
44  LAPACKE_xerbla( "LAPACKE_dorgtr", -1 );
45  return -1;
46  }
47 #ifndef LAPACK_DISABLE_NAN_CHECK
48  /* Optionally check input matrices for NaNs */
49  if( LAPACKE_dge_nancheck( matrix_layout, n, n, a, lda ) ) {
50  return -4;
51  }
52  if( LAPACKE_d_nancheck( n-1, tau, 1 ) ) {
53  return -6;
54  }
55 #endif
56  /* Query optimal working array(s) size */
57  info = LAPACKE_dorgtr_work( matrix_layout, uplo, n, a, lda, tau, &work_query,
58  lwork );
59  if( info != 0 ) {
60  goto exit_level_0;
61  }
62  lwork = (lapack_int)work_query;
63  /* Allocate memory for work arrays */
64  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
65  if( work == NULL ) {
67  goto exit_level_0;
68  }
69  /* Call middle-level interface */
70  info = LAPACKE_dorgtr_work( matrix_layout, uplo, n, a, lda, tau, work,
71  lwork );
72  /* Release memory and exit */
73  LAPACKE_free( work );
74 exit_level_0:
75  if( info == LAPACK_WORK_MEMORY_ERROR ) {
76  LAPACKE_xerbla( "LAPACKE_dorgtr", info );
77  }
78  return info;
79 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
lapack_int LAPACKE_dorgtr(int matrix_layout, char uplo, lapack_int n, double *a, lapack_int lda, const double *tau)
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
lapack_int LAPACKE_dorgtr_work(int matrix_layout, char uplo, lapack_int n, double *a, lapack_int lda, const double *tau, double *work, lapack_int lwork)