LAPACK  3.7.1
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 36 of file lapacke_cggsvp.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  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
51  LAPACKE_xerbla( "LAPACKE_cggsvp", -1 );
52  return -1;
53  }
54 #ifndef LAPACK_DISABLE_NAN_CHECK
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 #endif
69  /* Allocate memory for working array(s) */
70  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
71  if( iwork == NULL ) {
73  goto exit_level_0;
74  }
75  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,2*n) );
76  if( rwork == NULL ) {
78  goto exit_level_1;
79  }
80  tau = (lapack_complex_float*)
81  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,n) );
82  if( tau == NULL ) {
84  goto exit_level_2;
85  }
86  work = (lapack_complex_float*)
87  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,MAX3(3*n,m,p)) );
88  if( work == NULL ) {
90  goto exit_level_3;
91  }
92  /* Call middle-level interface */
93  info = LAPACKE_cggsvp_work( matrix_layout, jobu, jobv, jobq, m, p, n, a, lda,
94  b, ldb, tola, tolb, k, l, u, ldu, v, ldv, q,
95  ldq, iwork, rwork, tau, work );
96  /* Release memory and exit */
97  LAPACKE_free( work );
98 exit_level_3:
99  LAPACKE_free( tau );
100 exit_level_2:
101  LAPACKE_free( rwork );
102 exit_level_1:
103  LAPACKE_free( iwork );
104 exit_level_0:
105  if( info == LAPACK_WORK_MEMORY_ERROR ) {
106  LAPACKE_xerbla( "LAPACKE_cggsvp", info );
107  }
108  return info;
109 }
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)
#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_float
Definition: lapacke.h:74
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
#define MAX3(x, y, z)
Definition: lapacke_utils.h:53
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
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