LAPACK  3.8.0
LAPACK: Linear Algebra PACKage
lapacke_cunbdb_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 cunbdb
30 * Author: Intel Corporation
31 * Generated June 2017
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_cunbdb_work( int matrix_layout, char trans, char signs,
38  lapack_complex_float* x11, lapack_int ldx11,
39  lapack_complex_float* x12, lapack_int ldx12,
40  lapack_complex_float* x21, lapack_int ldx21,
41  lapack_complex_float* x22, lapack_int ldx22,
42  float* theta, float* phi,
43  lapack_complex_float* taup1,
44  lapack_complex_float* taup2,
45  lapack_complex_float* tauq1,
46  lapack_complex_float* tauq2,
47  lapack_complex_float* work, lapack_int lwork )
48 {
49  lapack_int info = 0;
50  /* LAPACK function works with matrices in both layouts. It is supported
51  * through TRANS parameter. So all conversion between layouts can be
52  * completed in LAPACK function. See the table below which describes how
53  * every LAPACKE call is forwarded to corresponding LAPACK call.
54  *
55  * matrix_layout | trans_LAPACKE | -> trans_LAPACK
56  * | (trans) | (ltrans)
57  * -----------------+---------------+----------------
58  * LAPACK_COL_MAJOR | 'N' | -> 'N'
59  * LAPACK_COL_MAJOR | 'T' | -> 'T'
60  * LAPACK_ROW_MAJOR | 'N' | -> 'T'
61  * LAPACK_ROW_MAJOR | 'T' | -> 'T'
62  * (note that for row major layout trans parameter is ignored)
63  */
64  if( matrix_layout == LAPACK_COL_MAJOR ||
65  matrix_layout == LAPACK_ROW_MAJOR ) {
66  char ltrans;
67  if( !LAPACKE_lsame( trans, 't' ) && matrix_layout == LAPACK_COL_MAJOR ) {
68  ltrans = 'n';
69  } else {
70  ltrans = 't';
71  }
72  /* Call LAPACK function and adjust info */
73  LAPACK_cunbdb( &ltrans, &signs, &m, &p, &q, x11, &ldx11, x12, &ldx12,
74  x21, &ldx21, x22, &ldx22, theta, phi, taup1, taup2,
75  tauq1, tauq2, work, &lwork, &info );
76  if( info < 0 ) {
77  info = info - 1;
78  }
79  } else {
80  info = -1;
81  LAPACKE_xerbla( "LAPACKE_cunbdb_work", info );
82  }
83  return info;
84 }
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
lapack_int LAPACKE_cunbdb_work(int matrix_layout, char trans, char signs, lapack_int m, lapack_int p, lapack_int q, lapack_complex_float *x11, lapack_int ldx11, lapack_complex_float *x12, lapack_int ldx12, lapack_complex_float *x21, lapack_int ldx21, lapack_complex_float *x22, lapack_int ldx22, float *theta, float *phi, lapack_complex_float *taup1, lapack_complex_float *taup2, lapack_complex_float *tauq1, lapack_complex_float *tauq2, lapack_complex_float *work, lapack_int lwork)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define lapack_complex_float
Definition: lapacke.h:74
#define lapack_int
Definition: lapacke.h:47
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
void LAPACK_cunbdb(char *trans, char *signs, lapack_int *m, lapack_int *p, lapack_int *q, lapack_complex_float *x11, lapack_int *ldx11, lapack_complex_float *x12, lapack_int *ldx12, lapack_complex_float *x21, lapack_int *ldx21, lapack_complex_float *x22, lapack_int *ldx22, float *theta, float *phi, lapack_complex_float *taup1, lapack_complex_float *taup2, lapack_complex_float *tauq1, lapack_complex_float *tauq2, lapack_complex_float *work, lapack_int *lwork, lapack_int *info)
void LAPACKE_xerbla(const char *name, lapack_int info)