LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgghd3()

lapack_int LAPACKE_zgghd3 ( int  matrix_layout,
char  compq,
char  compz,
lapack_int  n,
lapack_int  ilo,
lapack_int  ihi,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double q,
lapack_int  ldq,
lapack_complex_double z,
lapack_int  ldz 
)

Definition at line 35 of file lapacke_zgghd3.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 
47  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48  LAPACKE_xerbla( "LAPACKE_zgghd3", -1 );
49  return -1;
50  }
51 #ifndef LAPACK_DISABLE_NAN_CHECK
52  if( LAPACKE_get_nancheck() ) {
53  /* Optionally check input matrices for NaNs */
54  if( LAPACKE_zge_nancheck( matrix_layout, n, n, a, lda ) ) {
55  return -7;
56  }
57  if( LAPACKE_zge_nancheck( matrix_layout, n, n, b, ldb ) ) {
58  return -9;
59  }
60  if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
61  if( LAPACKE_zge_nancheck( matrix_layout, n, n, q, ldq ) ) {
62  return -11;
63  }
64  }
65  if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
66  if( LAPACKE_zge_nancheck( matrix_layout, n, n, z, ldz ) ) {
67  return -13;
68  }
69  }
70  }
71 #endif
72  /* Query optimal working array(s) size */
73  info = LAPACKE_zgghd3_work( matrix_layout, compq, compz, n, ilo, ihi,
74  a, lda, b, ldb, q, ldq, z, ldz, &work_query,
75  lwork );
76  if( info != 0 ) {
77  goto exit_level_0;
78  }
79  lwork = LAPACK_Z2INT( work_query );
80  /* Allocate memory for work arrays */
81  work = (lapack_complex_double*)
82  LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
83  if( work == NULL ) {
85  goto exit_level_0;
86  }
87  /* Call middle-level interface */
88  info = LAPACKE_zgghd3_work( matrix_layout, compq, compz, n, ilo, ihi,
89  a, lda, b, ldb, q, ldq, z, ldz, work,
90  lwork );
91  /* Release memory and exit */
92  LAPACKE_free( work );
93 exit_level_0:
94  if( info == LAPACK_WORK_MEMORY_ERROR ) {
95  LAPACKE_xerbla( "LAPACKE_zgghd3", info );
96  }
97  return info;
98 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
lapack_int LAPACKE_zgghd3_work(int matrix_layout, char compq, char compz, lapack_int n, lapack_int ilo, lapack_int ihi, lapack_complex_double *a, lapack_int lda, lapack_complex_double *b, lapack_int ldb, lapack_complex_double *q, lapack_int ldq, lapack_complex_double *z, lapack_int ldz, lapack_complex_double *work, lapack_int lwork)
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACK_Z2INT(x)
Definition: lapacke.h:50
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
Here is the call graph for this function: