LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cggsvp3()

lapack_int LAPACKE_cggsvp3 ( int  matrix_layout,
char  jobu,
char  jobv,
char  jobq,
lapack_int  m,
lapack_int  p,
lapack_int  n,
lapack_complex_float a,
lapack_int  lda,
lapack_complex_float b,
lapack_int  ldb,
float  tola,
float  tolb,
lapack_int k,
lapack_int l,
lapack_complex_float u,
lapack_int  ldu,
lapack_complex_float v,
lapack_int  ldv,
lapack_complex_float q,
lapack_int  ldq 
)

Definition at line 36 of file lapacke_cggsvp3.c.

44 {
45  lapack_int info = 0;
46  lapack_int* iwork = NULL;
47  float* rwork = NULL;
48  lapack_complex_float* tau = NULL;
49  lapack_complex_float* work = NULL;
50  lapack_int lwork = -1;
51  lapack_complex_float work_query;
52  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
53  LAPACKE_xerbla( "LAPACKE_cggsvp3", -1 );
54  return -1;
55  }
56 #ifndef LAPACK_DISABLE_NAN_CHECK
57  if( LAPACKE_get_nancheck() ) {
58  /* Optionally check input matrices for NaNs */
59  if( LAPACKE_cge_nancheck( matrix_layout, m, n, a, lda ) ) {
60  return -8;
61  }
62  if( LAPACKE_cge_nancheck( matrix_layout, p, n, b, ldb ) ) {
63  return -10;
64  }
65  if( LAPACKE_s_nancheck( 1, &tola, 1 ) ) {
66  return -12;
67  }
68  if( LAPACKE_s_nancheck( 1, &tolb, 1 ) ) {
69  return -13;
70  }
71  }
72 #endif
73  /* Query optimal size for working array */
74  info = LAPACKE_cggsvp3_work( matrix_layout, jobu, jobv, jobq, m, p, n,
75  a, lda, b, ldb, tola, tolb, k, l, u, ldu,
76  v, ldv, q, ldq, iwork, rwork, tau,
77  &work_query, lwork );
78  if( info != 0 )
79  goto exit_level_0;
80  lwork = LAPACK_C2INT( work_query );
81  /* Allocate memory for working array(s) */
82  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
83  if( iwork == NULL ) {
85  goto exit_level_0;
86  }
87  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,2*n) );
88  if( rwork == NULL ) {
90  goto exit_level_1;
91  }
92  tau = (lapack_complex_float*)
93  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,n) );
94  if( tau == NULL ) {
96  goto exit_level_2;
97  }
98  work = (lapack_complex_float*)
99  LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
100  if( work == NULL ) {
102  goto exit_level_3;
103  }
104  /* Call middle-level interface */
105  info = LAPACKE_cggsvp3_work( matrix_layout, jobu, jobv, jobq, m, p, n, a, lda,
106  b, ldb, tola, tolb, k, l, u, ldu, v, ldv, q,
107  ldq, iwork, rwork, tau, work, lwork );
108  /* Release memory and exit */
109  LAPACKE_free( work );
110 exit_level_3:
111  LAPACKE_free( tau );
112 exit_level_2:
113  LAPACKE_free( rwork );
114 exit_level_1:
115  LAPACKE_free( iwork );
116 exit_level_0:
117  if( info == LAPACK_WORK_MEMORY_ERROR ) {
118  LAPACKE_xerbla( "LAPACKE_cggsvp3", info );
119  }
120  return info;
121 }
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define lapack_complex_float
Definition: lapacke.h:74
int LAPACKE_get_nancheck()
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACKE_free(p)
Definition: lapacke.h:113
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_int LAPACKE_cggsvp3_work(int matrix_layout, char jobu, char jobv, char jobq, lapack_int m, lapack_int p, lapack_int n, lapack_complex_float *a, lapack_int lda, lapack_complex_float *b, lapack_int ldb, float tola, float tolb, lapack_int *k, lapack_int *l, lapack_complex_float *u, lapack_int ldu, lapack_complex_float *v, lapack_int ldv, lapack_complex_float *q, lapack_int ldq, lapack_int *iwork, float *rwork, lapack_complex_float *tau, lapack_complex_float *work, lapack_int lwork)
#define LAPACK_C2INT(x)
Definition: lapacke.h:116
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