LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapacke_zunmlq_work.c
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28 *****************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function zunmlq
30 * Author: Intel Corporation
31 * Generated June 2016
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_zunmlq_work( int matrix_layout, char side, char trans,
38  const lapack_complex_double* a, lapack_int lda,
39  const lapack_complex_double* tau,
41  lapack_complex_double* work, lapack_int lwork )
42 {
43  lapack_int info = 0;
44  lapack_int r;
45  lapack_int lda_t, ldc_t;
46  lapack_complex_double* a_t = NULL;
47  lapack_complex_double* c_t = NULL;
48  if( matrix_layout == LAPACK_COL_MAJOR ) {
49  /* Call LAPACK function and adjust info */
50  LAPACK_zunmlq( &side, &trans, &m, &n, &k, a, &lda, tau, c, &ldc, work,
51  &lwork, &info );
52  if( info < 0 ) {
53  info = info - 1;
54  }
55  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
56  r = LAPACKE_lsame( side, 'l' ) ? m : n;
57  lda_t = MAX(1,k);
58  ldc_t = MAX(1,m);
59  /* Check leading dimension(s) */
60  if( lda < r ) {
61  info = -8;
62  LAPACKE_xerbla( "LAPACKE_zunmlq_work", info );
63  return info;
64  }
65  if( ldc < n ) {
66  info = -11;
67  LAPACKE_xerbla( "LAPACKE_zunmlq_work", info );
68  return info;
69  }
70  /* Query optimal working array(s) size if requested */
71  if( lwork == -1 ) {
72  LAPACK_zunmlq( &side, &trans, &m, &n, &k, a, &lda_t, tau, c, &ldc_t,
73  work, &lwork, &info );
74  return (info < 0) ? (info - 1) : info;
75  }
76  /* Allocate memory for temporary array(s) */
77  if( LAPACKE_lsame( side, 'l' ) ) {
78  a_t = (lapack_complex_double*)
79  LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,m) );
80  } else {
81  a_t = (lapack_complex_double*)
82  LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
83  }
84  if( a_t == NULL ) {
86  goto exit_level_0;
87  }
88  c_t = (lapack_complex_double*)
89  LAPACKE_malloc( sizeof(lapack_complex_double) * ldc_t * MAX(1,n) );
90  if( c_t == NULL ) {
92  goto exit_level_1;
93  }
94  /* Transpose input matrices */
95  LAPACKE_zge_trans( matrix_layout, k, m, a, lda, a_t, lda_t );
96  LAPACKE_zge_trans( matrix_layout, m, n, c, ldc, c_t, ldc_t );
97  /* Call LAPACK function and adjust info */
98  LAPACK_zunmlq( &side, &trans, &m, &n, &k, a_t, &lda_t, tau, c_t, &ldc_t,
99  work, &lwork, &info );
100  if( info < 0 ) {
101  info = info - 1;
102  }
103  /* Transpose output matrices */
104  LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
105  /* Release memory and exit */
106  LAPACKE_free( c_t );
107 exit_level_1:
108  LAPACKE_free( a_t );
109 exit_level_0:
110  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
111  LAPACKE_xerbla( "LAPACKE_zunmlq_work", info );
112  }
113  } else {
114  info = -1;
115  LAPACKE_xerbla( "LAPACKE_zunmlq_work", info );
116  }
117  return info;
118 }
void LAPACK_zunmlq(char *side, char *trans, lapack_int *m, lapack_int *n, lapack_int *k, const lapack_complex_double *a, lapack_int *lda, const lapack_complex_double *tau, lapack_complex_double *c, lapack_int *ldc, lapack_complex_double *work, lapack_int *lwork, lapack_int *info)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
lapack_int LAPACKE_zunmlq_work(int matrix_layout, char side, char trans, lapack_int m, lapack_int n, lapack_int k, const lapack_complex_double *a, lapack_int lda, const lapack_complex_double *tau, lapack_complex_double *c, lapack_int ldc, lapack_complex_double *work, lapack_int lwork)
#define lapack_complex_double
Definition: lapacke.h:90
#define MAX(x, y)
Definition: lapacke_utils.h:47
#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
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
void LAPACKE_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)