LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgglse()

lapack_int LAPACKE_zgglse ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
lapack_int  p,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double c,
lapack_complex_double d,
lapack_complex_double x 
)

Definition at line 36 of file lapacke_zgglse.c.

41 {
42  lapack_int info = 0;
43  lapack_int lwork = -1;
44  lapack_complex_double* work = NULL;
45  lapack_complex_double work_query;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_zgglse", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  if( LAPACKE_get_nancheck() ) {
52  /* Optionally check input matrices for NaNs */
53  if( LAPACKE_zge_nancheck( matrix_layout, m, n, a, lda ) ) {
54  return -5;
55  }
56  if( LAPACKE_zge_nancheck( matrix_layout, p, n, b, ldb ) ) {
57  return -7;
58  }
59  if( LAPACKE_z_nancheck( m, c, 1 ) ) {
60  return -9;
61  }
62  if( LAPACKE_z_nancheck( p, d, 1 ) ) {
63  return -10;
64  }
65  }
66 #endif
67  /* Query optimal working array(s) size */
68  info = LAPACKE_zgglse_work( matrix_layout, m, n, p, a, lda, b, ldb, c, d, x,
69  &work_query, lwork );
70  if( info != 0 ) {
71  goto exit_level_0;
72  }
73  lwork = LAPACK_Z2INT( work_query );
74  /* Allocate memory for work arrays */
75  work = (lapack_complex_double*)
76  LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
77  if( work == NULL ) {
79  goto exit_level_0;
80  }
81  /* Call middle-level interface */
82  info = LAPACKE_zgglse_work( matrix_layout, m, n, p, a, lda, b, ldb, c, d, x,
83  work, lwork );
84  /* Release memory and exit */
85  LAPACKE_free( work );
86 exit_level_0:
87  if( info == LAPACK_WORK_MEMORY_ERROR ) {
88  LAPACKE_xerbla( "LAPACKE_zgglse", info );
89  }
90  return info;
91 }
#define LAPACK_Z2INT(x)
Definition: lapacke.h:117
lapack_int LAPACKE_zgglse_work(int matrix_layout, lapack_int m, lapack_int n, lapack_int p, lapack_complex_double *a, lapack_int lda, lapack_complex_double *b, lapack_int ldb, lapack_complex_double *c, lapack_complex_double *d, lapack_complex_double *x, lapack_complex_double *work, lapack_int lwork)
lapack_logical LAPACKE_z_nancheck(lapack_int n, const lapack_complex_double *x, lapack_int incx)
#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 lapack_complex_double
Definition: lapacke.h:90
#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
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
int LAPACKE_get_nancheck()
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