LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_zbdsqr()

lapack_int LAPACKE_zbdsqr ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  ncvt,
lapack_int  nru,
lapack_int  ncc,
double *  d,
double *  e,
lapack_complex_double vt,
lapack_int  ldvt,
lapack_complex_double u,
lapack_int  ldu,
lapack_complex_double c,
lapack_int  ldc 
)

Definition at line 35 of file lapacke_zbdsqr.c.

41{
42 lapack_int info = 0;
43 double* work = NULL;
44 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45 LAPACKE_xerbla( "LAPACKE_zbdsqr", -1 );
46 return -1;
47 }
48#ifndef LAPACK_DISABLE_NAN_CHECK
49 if( LAPACKE_get_nancheck() ) {
50 /* Optionally check input matrices for NaNs */
51 if( ncc != 0 ) {
52 if( LAPACKE_zge_nancheck( matrix_layout, n, ncc, c, ldc ) ) {
53 return -13;
54 }
55 }
56 if( LAPACKE_d_nancheck( n, d, 1 ) ) {
57 return -7;
58 }
59 if( LAPACKE_d_nancheck( n-1, e, 1 ) ) {
60 return -8;
61 }
62 if( nru != 0 ) {
63 if( LAPACKE_zge_nancheck( matrix_layout, nru, n, u, ldu ) ) {
64 return -11;
65 }
66 }
67 if( ncvt != 0 ) {
68 if( LAPACKE_zge_nancheck( matrix_layout, n, ncvt, vt, ldvt ) ) {
69 return -9;
70 }
71 }
72 }
73#endif
74 /* Allocate memory for working array(s) */
75 work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,4*n) );
76 if( work == NULL ) {
78 goto exit_level_0;
79 }
80 /* Call middle-level interface */
81 info = LAPACKE_zbdsqr_work( matrix_layout, uplo, n, ncvt, nru, ncc, d, e, vt,
82 ldvt, u, ldu, c, ldc, work );
83 /* Release memory and exit */
84 LAPACKE_free( work );
85exit_level_0:
86 if( info == LAPACK_WORK_MEMORY_ERROR ) {
87 LAPACKE_xerbla( "LAPACKE_zbdsqr", info );
88 }
89 return info;
90}
#define lapack_int
Definition: lapack.h:87
#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_zbdsqr_work(int matrix_layout, char uplo, lapack_int n, lapack_int ncvt, lapack_int nru, lapack_int ncc, double *d, double *e, lapack_complex_double *vt, lapack_int ldvt, lapack_complex_double *u, lapack_int ldu, lapack_complex_double *c, lapack_int ldc, double *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_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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