LAPACK  3.8.0
LAPACK: Linear Algebra PACKage
lapacke_cunmlq_work.c
Go to the documentation of this file.
1 /*****************************************************************************
2  Copyright (c) 2014, Intel Corp.
3  All rights reserved.
4 
5  Redistribution and use in source and binary forms, with or without
6  modification, are permitted provided that the following conditions are met:
7 
8  * Redistributions of source code must retain the above copyright notice,
9  this list of conditions and the following disclaimer.
10  * Redistributions in binary form must reproduce the above copyright
11  notice, this list of conditions and the following disclaimer in the
12  documentation and/or other materials provided with the distribution.
13  * Neither the name of Intel Corporation nor the names of its contributors
14  may be used to endorse or promote products derived from this software
15  without specific prior written permission.
16 
17  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27  THE POSSIBILITY OF SUCH DAMAGE.
28 *****************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function cunmlq
30 * Author: Intel Corporation
31 * Generated June 2016
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_cunmlq_work( int matrix_layout, char side, char trans,
38  const lapack_complex_float* a, lapack_int lda,
39  const lapack_complex_float* tau,
41  lapack_complex_float* work, lapack_int lwork )
42 {
43  lapack_int info = 0;
44  lapack_int r;
45  if( matrix_layout == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_cunmlq( &side, &trans, &m, &n, &k, a, &lda, tau, c, &ldc, work,
48  &lwork, &info );
49  if( info < 0 ) {
50  info = info - 1;
51  }
52  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
53  r = LAPACKE_lsame( side, 'l' ) ? m : n;
54  lapack_int lda_t = MAX(1,k);
55  lapack_int ldc_t = MAX(1,m);
56  lapack_complex_float* a_t = NULL;
57  lapack_complex_float* c_t = NULL;
58  /* Check leading dimension(s) */
59  if( lda < r ) {
60  info = -8;
61  LAPACKE_xerbla( "LAPACKE_cunmlq_work", info );
62  return info;
63  }
64  if( ldc < n ) {
65  info = -11;
66  LAPACKE_xerbla( "LAPACKE_cunmlq_work", info );
67  return info;
68  }
69  /* Query optimal working array(s) size if requested */
70  if( lwork == -1 ) {
71  LAPACK_cunmlq( &side, &trans, &m, &n, &k, a, &lda_t, tau, c, &ldc_t,
72  work, &lwork, &info );
73  return (info < 0) ? (info - 1) : info;
74  }
75  /* Allocate memory for temporary array(s) */
76  if( LAPACKE_lsame( side, 'l' ) ) {
77  a_t = (lapack_complex_float*)
78  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,m) );
79  } else {
80  a_t = (lapack_complex_float*)
81  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
82  }
83  if( a_t == NULL ) {
85  goto exit_level_0;
86  }
87  c_t = (lapack_complex_float*)
88  LAPACKE_malloc( sizeof(lapack_complex_float) * ldc_t * MAX(1,n) );
89  if( c_t == NULL ) {
91  goto exit_level_1;
92  }
93  /* Transpose input matrices */
94  LAPACKE_cge_trans( matrix_layout, k, m, a, lda, a_t, lda_t );
95  LAPACKE_cge_trans( matrix_layout, m, n, c, ldc, c_t, ldc_t );
96  /* Call LAPACK function and adjust info */
97  LAPACK_cunmlq( &side, &trans, &m, &n, &k, a_t, &lda_t, tau, c_t, &ldc_t,
98  work, &lwork, &info );
99  if( info < 0 ) {
100  info = info - 1;
101  }
102  /* Transpose output matrices */
103  LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
104  /* Release memory and exit */
105  LAPACKE_free( c_t );
106 exit_level_1:
107  LAPACKE_free( a_t );
108 exit_level_0:
109  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
110  LAPACKE_xerbla( "LAPACKE_cunmlq_work", info );
111  }
112  } else {
113  info = -1;
114  LAPACKE_xerbla( "LAPACKE_cunmlq_work", info );
115  }
116  return info;
117 }
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 LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
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)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#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