LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cggsvp()

lapack_int LAPACKE_cggsvp ( 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 35 of file lapacke_cggsvp.c.

43 {
44  lapack_int info = 0;
45  lapack_int* iwork = NULL;
46  float* rwork = NULL;
47  lapack_complex_float* tau = NULL;
48  lapack_complex_float* work = NULL;
49  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
50  LAPACKE_xerbla( "LAPACKE_cggsvp", -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_cge_nancheck( matrix_layout, m, n, a, lda ) ) {
57  return -8;
58  }
59  if( LAPACKE_cge_nancheck( matrix_layout, p, n, b, ldb ) ) {
60  return -10;
61  }
62  if( LAPACKE_s_nancheck( 1, &tola, 1 ) ) {
63  return -12;
64  }
65  if( LAPACKE_s_nancheck( 1, &tolb, 1 ) ) {
66  return -13;
67  }
68  }
69 #endif
70  /* Allocate memory for working array(s) */
71  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
72  if( iwork == NULL ) {
74  goto exit_level_0;
75  }
76  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,2*n) );
77  if( rwork == NULL ) {
79  goto exit_level_1;
80  }
81  tau = (lapack_complex_float*)
82  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,n) );
83  if( tau == NULL ) {
85  goto exit_level_2;
86  }
87  work = (lapack_complex_float*)
88  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,MAX3(3*n,m,p)) );
89  if( work == NULL ) {
91  goto exit_level_3;
92  }
93  /* Call middle-level interface */
94  info = LAPACKE_cggsvp_work( matrix_layout, jobu, jobv, jobq, m, p, n, a, lda,
95  b, ldb, tola, tolb, k, l, u, ldu, v, ldv, q,
96  ldq, iwork, rwork, tau, work );
97  /* Release memory and exit */
98  LAPACKE_free( work );
99 exit_level_3:
100  LAPACKE_free( tau );
101 exit_level_2:
102  LAPACKE_free( rwork );
103 exit_level_1:
104  LAPACKE_free( iwork );
105 exit_level_0:
106  if( info == LAPACK_WORK_MEMORY_ERROR ) {
107  LAPACKE_xerbla( "LAPACKE_cggsvp", info );
108  }
109  return info;
110 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_float
Definition: lapack.h:45
#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_cggsvp_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)
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_s_nancheck(lapack_int n, const float *x, lapack_int incx)
#define MAX3(x, y, z)
Definition: lapacke_utils.h:52
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
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