LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cbdsqr()

lapack_int LAPACKE_cbdsqr ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  ncvt,
lapack_int  nru,
lapack_int  ncc,
float *  d,
float *  e,
lapack_complex_float vt,
lapack_int  ldvt,
lapack_complex_float u,
lapack_int  ldu,
lapack_complex_float c,
lapack_int  ldc 
)

Definition at line 36 of file lapacke_cbdsqr.c.

42 {
43  lapack_int info = 0;
44  float* work = NULL;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_cbdsqr", -1 );
47  return -1;
48  }
49 #ifndef LAPACK_DISABLE_NAN_CHECK
50  if( LAPACKE_get_nancheck() ) {
51  /* Optionally check input matrices for NaNs */
52  if( ncc != 0 ) {
53  if( LAPACKE_cge_nancheck( matrix_layout, n, ncc, c, ldc ) ) {
54  return -13;
55  }
56  }
57  if( LAPACKE_s_nancheck( n, d, 1 ) ) {
58  return -7;
59  }
60  if( LAPACKE_s_nancheck( n-1, e, 1 ) ) {
61  return -8;
62  }
63  if( nru != 0 ) {
64  if( LAPACKE_cge_nancheck( matrix_layout, nru, n, u, ldu ) ) {
65  return -11;
66  }
67  }
68  if( ncvt != 0 ) {
69  if( LAPACKE_cge_nancheck( matrix_layout, n, ncvt, vt, ldvt ) ) {
70  return -9;
71  }
72  }
73  }
74 #endif
75  /* Allocate memory for working array(s) */
76  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,4*n) );
77  if( work == NULL ) {
79  goto exit_level_0;
80  }
81  /* Call middle-level interface */
82  info = LAPACKE_cbdsqr_work( matrix_layout, uplo, n, ncvt, nru, ncc, d, e, vt,
83  ldvt, u, ldu, c, ldc, work );
84  /* Release memory and exit */
85  LAPACKE_free( work );
86 exit_level_0:
87  if( info == LAPACK_WORK_MEMORY_ERROR ) {
88  LAPACKE_xerbla( "LAPACKE_cbdsqr", info );
89  }
90  return info;
91 }
#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
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
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
lapack_int LAPACKE_cbdsqr_work(int matrix_layout, char uplo, lapack_int n, lapack_int ncvt, lapack_int nru, lapack_int ncc, float *d, float *e, lapack_complex_float *vt, lapack_int ldvt, lapack_complex_float *u, lapack_int ldu, lapack_complex_float *c, lapack_int ldc, float *work)
int LAPACKE_get_nancheck()
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