LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapacke_cgesvj.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 high-level C interface to LAPACK function cgesvj
30 * Author: Intel Corporation
31 * Generated June 2016
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_cgesvj( int matrix_layout, char joba, char jobu, char jobv,
39  float* sva, lapack_int mv,
40  lapack_complex_float* v, lapack_int ldv, float* stat )
41 {
42  lapack_int info = 0;
43  lapack_int lwork = m+n;
44  lapack_int lrwork = MAX(6,m+n);
45  float* rwork = NULL;
46  lapack_complex_float* cwork = NULL;
47  lapack_int i;
48  lapack_int nrows_v;
49  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
50  LAPACKE_xerbla( "LAPACKE_cgesvj", -1 );
51  return -1;
52  }
53 #ifndef LAPACK_DISABLE_NAN_CHECK
54  /* Optionally check input matrices for NaNs */
55  nrows_v = LAPACKE_lsame( jobv, 'v' ) ? MAX(0,n) :
56  ( LAPACKE_lsame( jobv, 'a' ) ? MAX(0,mv) : 0);
57  if( LAPACKE_cge_nancheck( matrix_layout, m, n, a, lda ) ) {
58  return -7;
59  }
60  if( LAPACKE_lsame( jobv, 'a' ) || LAPACKE_lsame( jobv, 'v' ) ) {
61  if( LAPACKE_cge_nancheck( matrix_layout, nrows_v, n, v, ldv ) ) {
62  return -11;
63  }
64  }
65 #endif
66  /* Allocate memory for working array(s) */
67  cwork = (lapack_complex_float*)
68  LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
69  if( cwork == NULL ) {
71  goto exit_level_0;
72  }
73  rwork = (float*)LAPACKE_malloc( sizeof(float) * lrwork );
74  if( rwork == NULL ) {
76  goto exit_level_1;
77  }
78  rwork[0] = stat[0]; /* Significant if jobu = 'c' */
79  /* Call middle-level interface */
80  info = LAPACKE_cgesvj_work( matrix_layout, joba, jobu, jobv, m, n, a, lda,
81  sva, mv, v, ldv, cwork, lwork, rwork, lrwork );
82  /* Backup significant data from working array(s) */
83  for( i=0; i<6; i++ ) {
84  stat[i] = rwork[i];
85  }
86 
87  /* Release memory and exit */
88  LAPACKE_free( rwork );
89 exit_level_1:
90  LAPACKE_free( cwork );
91 exit_level_0:
92  if( info == LAPACK_WORK_MEMORY_ERROR ) {
93  LAPACKE_xerbla( "LAPACKE_cgesvj", info );
94  }
95  return info;
96 }
lapack_int LAPACKE_cgesvj(int matrix_layout, char joba, char jobu, char jobv, lapack_int m, lapack_int n, lapack_complex_float *a, lapack_int lda, float *sva, lapack_int mv, lapack_complex_float *v, lapack_int ldv, float *stat)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define lapack_complex_float
Definition: lapacke.h:74
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
#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
lapack_int LAPACKE_cgesvj_work(int matrix_layout, char joba, char jobu, char jobv, lapack_int m, lapack_int n, lapack_complex_float *a, lapack_int lda, float *sva, lapack_int mv, lapack_complex_float *v, lapack_int ldv, lapack_complex_float *cwork, lapack_int lwork, float *rwork, lapack_int lrwork)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47