LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dggglm()

lapack_int LAPACKE_dggglm ( int  matrix_layout,
lapack_int  n,
lapack_int  m,
lapack_int  p,
double *  a,
lapack_int  lda,
double *  b,
lapack_int  ldb,
double *  d,
double *  x,
double *  y 
)

Definition at line 35 of file lapacke_dggglm.c.

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_dggglm", -1 );
45  return -1;
46  }
47 #ifndef LAPACK_DISABLE_NAN_CHECK
48  if( LAPACKE_get_nancheck() ) {
49  /* Optionally check input matrices for NaNs */
50  if( LAPACKE_dge_nancheck( matrix_layout, n, m, a, lda ) ) {
51  return -5;
52  }
53  if( LAPACKE_dge_nancheck( matrix_layout, n, p, b, ldb ) ) {
54  return -7;
55  }
56  if( LAPACKE_d_nancheck( n, d, 1 ) ) {
57  return -9;
58  }
59  }
60 #endif
61  /* Query optimal working array(s) size */
62  info = LAPACKE_dggglm_work( matrix_layout, n, m, p, a, lda, b, ldb, d, x, y,
63  &work_query, lwork );
64  if( info != 0 ) {
65  goto exit_level_0;
66  }
67  lwork = (lapack_int)work_query;
68  /* Allocate memory for work arrays */
69  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
70  if( work == NULL ) {
72  goto exit_level_0;
73  }
74  /* Call middle-level interface */
75  info = LAPACKE_dggglm_work( matrix_layout, n, m, p, a, lda, b, ldb, d, x, y,
76  work, lwork );
77  /* Release memory and exit */
78  LAPACKE_free( work );
79 exit_level_0:
80  if( info == LAPACK_WORK_MEMORY_ERROR ) {
81  LAPACKE_xerbla( "LAPACKE_dggglm", info );
82  }
83  return info;
84 }
#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_dggglm_work(int matrix_layout, lapack_int n, lapack_int m, lapack_int p, double *a, lapack_int lda, double *b, lapack_int ldb, double *d, double *x, double *y, double *work, lapack_int lwork)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
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