LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zggsvd()

lapack_int LAPACKE_zggsvd ( int  matrix_layout,
char  jobu,
char  jobv,
char  jobq,
lapack_int  m,
lapack_int  n,
lapack_int  p,
lapack_int k,
lapack_int l,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double b,
lapack_int  ldb,
double *  alpha,
double *  beta,
lapack_complex_double u,
lapack_int  ldu,
lapack_complex_double v,
lapack_int  ldv,
lapack_complex_double q,
lapack_int  ldq,
lapack_int iwork 
)

Definition at line 35 of file lapacke_zggsvd.c.

45 {
46  lapack_int info = 0;
47  double* rwork = NULL;
48  lapack_complex_double* work = NULL;
49  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
50  LAPACKE_xerbla( "LAPACKE_zggsvd", -1 );
51  return -1;
52  }
53 #ifndef LAPACK_DISABLE_NAN_CHECK
54  if( LAPACKE_get_nancheck() ) {
55  /* Optionally check input matrices for NaNs */
56  if( LAPACKE_zge_nancheck( matrix_layout, m, n, a, lda ) ) {
57  return -10;
58  }
59  if( LAPACKE_zge_nancheck( matrix_layout, p, n, b, ldb ) ) {
60  return -12;
61  }
62  }
63 #endif
64  /* Allocate memory for working array(s) */
65  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,2*n) );
66  if( rwork == NULL ) {
68  goto exit_level_0;
69  }
70  work = (lapack_complex_double*)
72  MAX(1,MAX3(3*n,m,p)+n) );
73  if( work == NULL ) {
75  goto exit_level_1;
76  }
77  /* Call middle-level interface */
78  info = LAPACKE_zggsvd_work( matrix_layout, jobu, jobv, jobq, m, n, p, k, l,
79  a, lda, b, ldb, alpha, beta, u, ldu, v, ldv, q,
80  ldq, work, rwork, iwork );
81  /* Release memory and exit */
82  LAPACKE_free( work );
83 exit_level_1:
84  LAPACKE_free( rwork );
85 exit_level_0:
86  if( info == LAPACK_WORK_MEMORY_ERROR ) {
87  LAPACKE_xerbla( "LAPACKE_zggsvd", info );
88  }
89  return info;
90 }
#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
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
lapack_int LAPACKE_zggsvd_work(int matrix_layout, char jobu, char jobv, char jobq, lapack_int m, lapack_int n, lapack_int p, lapack_int *k, lapack_int *l, lapack_complex_double *a, lapack_int lda, lapack_complex_double *b, lapack_int ldb, double *alpha, double *beta, lapack_complex_double *u, lapack_int ldu, lapack_complex_double *v, lapack_int ldv, lapack_complex_double *q, lapack_int ldq, lapack_complex_double *work, double *rwork, lapack_int *iwork)
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_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
#define MAX3(x, y, z)
Definition: lapacke_utils.h:52
#define MAX(x, y)
Definition: lapacke_utils.h:46
Here is the call graph for this function: