LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ztgsyl()

lapack_int LAPACKE_ztgsyl ( int  matrix_layout,
char  trans,
lapack_int  ijob,
lapack_int  m,
lapack_int  n,
const lapack_complex_double a,
lapack_int  lda,
const lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double c,
lapack_int  ldc,
const lapack_complex_double d,
lapack_int  ldd,
const lapack_complex_double e,
lapack_int  lde,
lapack_complex_double f,
lapack_int  ldf,
double *  scale,
double *  dif 
)

Definition at line 36 of file lapacke_ztgsyl.c.

45 {
46  lapack_int info = 0;
47  lapack_int lwork = -1;
48  lapack_int* iwork = NULL;
49  lapack_complex_double* work = NULL;
50  lapack_complex_double work_query;
51  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
52  LAPACKE_xerbla( "LAPACKE_ztgsyl", -1 );
53  return -1;
54  }
55 #ifndef LAPACK_DISABLE_NAN_CHECK
56  if( LAPACKE_get_nancheck() ) {
57  /* Optionally check input matrices for NaNs */
58  if( LAPACKE_zge_nancheck( matrix_layout, m, m, a, lda ) ) {
59  return -6;
60  }
61  if( LAPACKE_zge_nancheck( matrix_layout, n, n, b, ldb ) ) {
62  return -8;
63  }
64  if( LAPACKE_zge_nancheck( matrix_layout, m, n, c, ldc ) ) {
65  return -10;
66  }
67  if( LAPACKE_zge_nancheck( matrix_layout, m, m, d, ldd ) ) {
68  return -12;
69  }
70  if( LAPACKE_zge_nancheck( matrix_layout, n, n, e, lde ) ) {
71  return -14;
72  }
73  if( LAPACKE_zge_nancheck( matrix_layout, m, n, f, ldf ) ) {
74  return -16;
75  }
76  }
77 #endif
78  /* Allocate memory for working array(s) */
79  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,m+n+2) );
80  if( iwork == NULL ) {
82  goto exit_level_0;
83  }
84  /* Query optimal working array(s) size */
85  info = LAPACKE_ztgsyl_work( matrix_layout, trans, ijob, m, n, a, lda, b, ldb,
86  c, ldc, d, ldd, e, lde, f, ldf, scale, dif,
87  &work_query, lwork, iwork );
88  if( info != 0 ) {
89  goto exit_level_1;
90  }
91  lwork = LAPACK_Z2INT( work_query );
92  /* Allocate memory for work arrays */
93  work = (lapack_complex_double*)
94  LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
95  if( work == NULL ) {
97  goto exit_level_1;
98  }
99  /* Call middle-level interface */
100  info = LAPACKE_ztgsyl_work( matrix_layout, trans, ijob, m, n, a, lda, b, ldb,
101  c, ldc, d, ldd, e, lde, f, ldf, scale, dif,
102  work, lwork, iwork );
103  /* Release memory and exit */
104  LAPACKE_free( work );
105 exit_level_1:
106  LAPACKE_free( iwork );
107 exit_level_0:
108  if( info == LAPACK_WORK_MEMORY_ERROR ) {
109  LAPACKE_xerbla( "LAPACKE_ztgsyl", info );
110  }
111  return info;
112 }
#define LAPACK_Z2INT(x)
Definition: lapacke.h:117
#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
logical function lde(RI, RJ, LR)
Definition: dblat2.f:2945
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_int LAPACKE_ztgsyl_work(int matrix_layout, char trans, lapack_int ijob, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda, const lapack_complex_double *b, lapack_int ldb, lapack_complex_double *c, lapack_int ldc, const lapack_complex_double *d, lapack_int ldd, const lapack_complex_double *e, lapack_int lde, lapack_complex_double *f, lapack_int ldf, double *scale, double *dif, lapack_complex_double *work, lapack_int lwork, lapack_int *iwork)
#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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