LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sopgtr()

lapack_int LAPACKE_sopgtr ( int  matrix_layout,
char  uplo,
lapack_int  n,
const float *  ap,
const float *  tau,
float *  q,
lapack_int  ldq 
)

Definition at line 36 of file lapacke_sopgtr.c.

39 {
40  lapack_int info = 0;
41  float* work = NULL;
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_sopgtr", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  if( LAPACKE_get_nancheck() ) {
48  /* Optionally check input matrices for NaNs */
49  if( LAPACKE_ssp_nancheck( n, ap ) ) {
50  return -4;
51  }
52  if( LAPACKE_s_nancheck( n-1, tau, 1 ) ) {
53  return -5;
54  }
55  }
56 #endif
57  /* Allocate memory for working array(s) */
58  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n-1) );
59  if( work == NULL ) {
61  goto exit_level_0;
62  }
63  /* Call middle-level interface */
64  info = LAPACKE_sopgtr_work( matrix_layout, uplo, n, ap, tau, q, ldq, work );
65  /* Release memory and exit */
66  LAPACKE_free( work );
67 exit_level_0:
68  if( info == LAPACK_WORK_MEMORY_ERROR ) {
69  LAPACKE_xerbla( "LAPACKE_sopgtr", info );
70  }
71  return info;
72 }
lapack_int LAPACKE_sopgtr_work(int matrix_layout, char uplo, lapack_int n, const float *ap, const float *tau, float *q, lapack_int ldq, 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
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
#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_logical LAPACKE_ssp_nancheck(lapack_int n, const float *ap)
int LAPACKE_get_nancheck()
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