LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cgemlq_work()

lapack_int LAPACKE_cgemlq_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 t,
lapack_int  tsize,
lapack_complex_float c,
lapack_int  ldc,
lapack_complex_float work,
lapack_int  lwork 
)

Definition at line 35 of file lapacke_cgemlq_work.c.

41 {
42  lapack_int info = 0;
43  lapack_int r;
44  lapack_int lda_t, ldc_t;
45  lapack_complex_float *a_t = NULL, *c_t = NULL;
46  if( matrix_layout == LAPACK_COL_MAJOR ) {
47  /* Call LAPACK function and adjust info */
48  LAPACK_cgemlq( &side, &trans, &m, &n, &k, a, &lda, t, &tsize,
49  c, &ldc, work, &lwork, &info );
50  if( info < 0 ) {
51  info = info - 1;
52  }
53  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
54  r = LAPACKE_lsame( side, 'l' ) ? m : n;
55  lda_t = MAX(1,k);
56  ldc_t = MAX(1,m);
57  /* Check leading dimension(s) */
58  if( lda < r ) {
59  info = -8;
60  LAPACKE_xerbla( "LAPACKE_cgemlq_work", info );
61  return info;
62  }
63  if( ldc < n ) {
64  info = -11;
65  LAPACKE_xerbla( "LAPACKE_cgemlq_work", info );
66  return info;
67  }
68  /* Query optimal working array(s) size if requested */
69  if( lwork == -1 ) {
70  LAPACK_cgemlq( &side, &trans, &m, &n, &k, a, &lda_t, t, &tsize,
71  c, &ldc_t, work, &lwork, &info );
72  return (info < 0) ? (info - 1) : info;
73  }
74  /* Allocate memory for temporary array(s) */
75  if( LAPACKE_lsame( side, 'l' ) ) {
76  a_t = (lapack_complex_float*)LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,m) );
77  } else {
78  a_t = (lapack_complex_float*)LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
79  }
80  if( a_t == NULL ) {
82  goto exit_level_0;
83  }
84  c_t = (lapack_complex_float*)LAPACKE_malloc( sizeof(lapack_complex_float) * ldc_t * MAX(1,n) );
85  if( c_t == NULL ) {
87  goto exit_level_1;
88  }
89  /* Transpose input matrices */
90  LAPACKE_cge_trans( matrix_layout, k, m, a, lda, a_t, lda_t );
91  LAPACKE_cge_trans( matrix_layout, m, n, c, ldc, c_t, ldc_t );
92  /* Call LAPACK function and adjust info */
93  LAPACK_cgemlq( &side, &trans, &m, &n, &k, a_t, &lda_t, t, &tsize,
94  c_t, &ldc_t, work, &lwork, &info );
95  if( info < 0 ) {
96  info = info - 1;
97  }
98  /* Transpose output matrices */
99  LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
100  /* Release memory and exit */
101  LAPACKE_free( c_t );
102 exit_level_1:
103  LAPACKE_free( a_t );
104 exit_level_0:
105  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
106  LAPACKE_xerbla( "LAPACKE_cgemlq_work", info );
107  }
108  } else {
109  info = -1;
110  LAPACKE_xerbla( "LAPACKE_cgemlq_work", info );
111  }
112  return info;
113 }
#define LAPACK_cgemlq(...)
Definition: lapack.h:2402
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_float
Definition: lapack.h:45
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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)
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