LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_dopgtr()

lapack_int LAPACKE_dopgtr ( int  matrix_layout,
char  uplo,
lapack_int  n,
const double *  ap,
const double *  tau,
double *  q,
lapack_int  ldq 
)

Definition at line 35 of file lapacke_dopgtr.c.

38{
39 lapack_int info = 0;
40 double* work = NULL;
41 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
42 LAPACKE_xerbla( "LAPACKE_dopgtr", -1 );
43 return -1;
44 }
45#ifndef LAPACK_DISABLE_NAN_CHECK
46 if( LAPACKE_get_nancheck() ) {
47 /* Optionally check input matrices for NaNs */
48 if( LAPACKE_dsp_nancheck( n, ap ) ) {
49 return -4;
50 }
51 if( LAPACKE_d_nancheck( n-1, tau, 1 ) ) {
52 return -5;
53 }
54 }
55#endif
56 /* Allocate memory for working array(s) */
57 work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n-1) );
58 if( work == NULL ) {
60 goto exit_level_0;
61 }
62 /* Call middle-level interface */
63 info = LAPACKE_dopgtr_work( matrix_layout, uplo, n, ap, tau, q, ldq, work );
64 /* Release memory and exit */
65 LAPACKE_free( work );
66exit_level_0:
67 if( info == LAPACK_WORK_MEMORY_ERROR ) {
68 LAPACKE_xerbla( "LAPACKE_dopgtr", info );
69 }
70 return info;
71}
#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
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_int LAPACKE_dopgtr_work(int matrix_layout, char uplo, lapack_int n, const double *ap, const double *tau, double *q, lapack_int ldq, double *work)
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_dsp_nancheck(lapack_int n, const double *ap)
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