LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapack_int LAPACKE_sormtr ( int  matrix_layout,
char  side,
char  uplo,
char  trans,
lapack_int  m,
lapack_int  n,
const float *  a,
lapack_int  lda,
const float *  tau,
float *  c,
lapack_int  ldc 
)

Definition at line 36 of file lapacke_sormtr.c.

40 {
41  lapack_int info = 0;
42  lapack_int lwork = -1;
43  float* work = NULL;
44  float work_query;
45  lapack_int r;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_sormtr", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  /* Optionally check input matrices for NaNs */
52  r = LAPACKE_lsame( side, 'l' ) ? m : n;
53  if( LAPACKE_sge_nancheck( matrix_layout, r, r, a, lda ) ) {
54  return -7;
55  }
56  if( LAPACKE_sge_nancheck( matrix_layout, m, n, c, ldc ) ) {
57  return -10;
58  }
59  if( LAPACKE_s_nancheck( m-1, tau, 1 ) ) {
60  return -9;
61  }
62 #endif
63  /* Query optimal working array(s) size */
64  info = LAPACKE_sormtr_work( matrix_layout, side, uplo, trans, m, n, a, lda,
65  tau, c, ldc, &work_query, lwork );
66  if( info != 0 ) {
67  goto exit_level_0;
68  }
69  lwork = (lapack_int)work_query;
70  /* Allocate memory for work arrays */
71  work = (float*)LAPACKE_malloc( sizeof(float) * lwork );
72  if( work == NULL ) {
74  goto exit_level_0;
75  }
76  /* Call middle-level interface */
77  info = LAPACKE_sormtr_work( matrix_layout, side, uplo, trans, m, n, a, lda,
78  tau, c, ldc, work, lwork );
79  /* Release memory and exit */
80  LAPACKE_free( work );
81 exit_level_0:
82  if( info == LAPACK_WORK_MEMORY_ERROR ) {
83  LAPACKE_xerbla( "LAPACKE_sormtr", info );
84  }
85  return info;
86 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#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_sormtr_work(int matrix_layout, char side, char uplo, char trans, lapack_int m, lapack_int n, const float *a, lapack_int lda, const float *tau, float *c, lapack_int ldc, float *work, lapack_int lwork)

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