LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapacke_dgels.c
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28 *****************************************************************************
29 * Contents: Native high-level C interface to LAPACK function dgels
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_dgels( int matrix_layout, char trans, lapack_int m,
37  lapack_int n, lapack_int nrhs, double* a,
38  lapack_int lda, double* b, lapack_int ldb )
39 {
40  lapack_int info = 0;
41  lapack_int lwork = -1;
42  double* work = NULL;
43  double work_query;
44  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_dgels", -1 );
46  return -1;
47  }
48 #ifndef LAPACK_DISABLE_NAN_CHECK
49  /* Optionally check input matrices for NaNs */
50  if( LAPACKE_dge_nancheck( matrix_layout, m, n, a, lda ) ) {
51  return -6;
52  }
53  if( LAPACKE_dge_nancheck( matrix_layout, MAX(m,n), nrhs, b, ldb ) ) {
54  return -8;
55  }
56 #endif
57  /* Query optimal working array(s) size */
58  info = LAPACKE_dgels_work( matrix_layout, trans, m, n, nrhs, a, lda, b, ldb,
59  &work_query, lwork );
60  if( info != 0 ) {
61  goto exit_level_0;
62  }
63  lwork = (lapack_int)work_query;
64  /* Allocate memory for work arrays */
65  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
66  if( work == NULL ) {
68  goto exit_level_0;
69  }
70  /* Call middle-level interface */
71  info = LAPACKE_dgels_work( matrix_layout, trans, m, n, nrhs, a, lda, b, ldb,
72  work, lwork );
73  /* Release memory and exit */
74  LAPACKE_free( work );
75 exit_level_0:
76  if( info == LAPACK_WORK_MEMORY_ERROR ) {
77  LAPACKE_xerbla( "LAPACKE_dgels", info );
78  }
79  return info;
80 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
lapack_int LAPACKE_dgels(int matrix_layout, char trans, lapack_int m, lapack_int n, lapack_int nrhs, double *a, lapack_int lda, double *b, lapack_int ldb)
Definition: lapacke_dgels.c:36
lapack_int LAPACKE_dgels_work(int matrix_layout, char trans, lapack_int m, lapack_int n, lapack_int nrhs, double *a, lapack_int lda, double *b, lapack_int ldb, double *work, lapack_int lwork)
#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_free(p)
Definition: lapacke.h:113
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47