LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapack_int LAPACKE_cunmlq_work ( int  matrix_layout,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
const lapack_complex_float a,
lapack_int  lda,
const lapack_complex_float tau,
lapack_complex_float c,
lapack_int  ldc,
lapack_complex_float work,
lapack_int  lwork 
)

Definition at line 36 of file lapacke_cunmlq_work.c.

42 {
43  lapack_int info = 0;
44  lapack_int r;
45  lapack_int lda_t, ldc_t;
46  lapack_complex_float* a_t = NULL;
47  lapack_complex_float* c_t = NULL;
48  if( matrix_layout == LAPACK_COL_MAJOR ) {
49  /* Call LAPACK function and adjust info */
50  LAPACK_cunmlq( &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_cunmlq_work", info );
63  return info;
64  }
65  if( ldc < n ) {
66  info = -11;
67  LAPACKE_xerbla( "LAPACKE_cunmlq_work", info );
68  return info;
69  }
70  /* Query optimal working array(s) size if requested */
71  if( lwork == -1 ) {
72  LAPACK_cunmlq( &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_float*)
79  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,m) );
80  } else {
81  a_t = (lapack_complex_float*)
82  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
83  }
84  if( a_t == NULL ) {
86  goto exit_level_0;
87  }
88  c_t = (lapack_complex_float*)
89  LAPACKE_malloc( sizeof(lapack_complex_float) * ldc_t * MAX(1,n) );
90  if( c_t == NULL ) {
92  goto exit_level_1;
93  }
94  /* Transpose input matrices */
95  LAPACKE_cge_trans( matrix_layout, k, m, a, lda, a_t, lda_t );
96  LAPACKE_cge_trans( matrix_layout, m, n, c, ldc, c_t, ldc_t );
97  /* Call LAPACK function and adjust info */
98  LAPACK_cunmlq( &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_cge_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_cunmlq_work", info );
112  }
113  } else {
114  info = -1;
115  LAPACKE_xerbla( "LAPACKE_cunmlq_work", info );
116  }
117  return info;
118 }
void LAPACK_cunmlq(char *side, char *trans, lapack_int *m, lapack_int *n, lapack_int *k, const lapack_complex_float *a, lapack_int *lda, const lapack_complex_float *tau, lapack_complex_float *c, lapack_int *ldc, lapack_complex_float *work, lapack_int *lwork, lapack_int *info)
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define lapack_complex_float
Definition: lapacke.h:74
#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

Here is the call graph for this function:

Here is the caller graph for this function: