LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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lapacke_cggesx.c
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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:
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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
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25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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27 THE POSSIBILITY OF SUCH DAMAGE.
28*****************************************************************************
29* Contents: Native high-level C interface to LAPACK function cggesx
30* Author: Intel Corporation
31*****************************************************************************/
32
33#include "lapacke_utils.h"
34
35lapack_int LAPACKE_cggesx( int matrix_layout, char jobvsl, char jobvsr,
36 char sort, LAPACK_C_SELECT2 selctg, char sense,
39 lapack_int ldb, lapack_int* sdim,
44 float* rconde, float* rcondv )
45{
46 lapack_int info = 0;
47 lapack_int liwork = -1;
48 lapack_int lwork = -1;
49 lapack_logical* bwork = NULL;
50 lapack_int* iwork = NULL;
51 float* rwork = NULL;
52 lapack_complex_float* work = NULL;
53 lapack_int iwork_query;
54 lapack_complex_float work_query;
55 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
56 LAPACKE_xerbla( "LAPACKE_cggesx", -1 );
57 return -1;
58 }
59#ifndef LAPACK_DISABLE_NAN_CHECK
60 if( LAPACKE_get_nancheck() ) {
61 /* Optionally check input matrices for NaNs */
62 if( LAPACKE_cge_nancheck( matrix_layout, n, n, a, lda ) ) {
63 return -8;
64 }
65 if( LAPACKE_cge_nancheck( matrix_layout, n, n, b, ldb ) ) {
66 return -10;
67 }
68 }
69#endif
70 /* Allocate memory for working array(s) */
71 if( LAPACKE_lsame( sort, 's' ) ) {
72 bwork = (lapack_logical*)
73 LAPACKE_malloc( sizeof(lapack_logical) * MAX(1,n) );
74 if( bwork == NULL ) {
76 goto exit_level_0;
77 }
78 }
79 rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,8*n) );
80 if( rwork == NULL ) {
82 goto exit_level_1;
83 }
84 /* Query optimal working array(s) size */
85 info = LAPACKE_cggesx_work( matrix_layout, jobvsl, jobvsr, sort, selctg,
86 sense, n, a, lda, b, ldb, sdim, alpha, beta,
87 vsl, ldvsl, vsr, ldvsr, rconde, rcondv,
88 &work_query, lwork, rwork, &iwork_query, liwork,
89 bwork );
90 if( info != 0 ) {
91 goto exit_level_2;
92 }
93 liwork = iwork_query;
94 lwork = LAPACK_C2INT( work_query );
95 /* Allocate memory for work arrays */
96 iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * liwork );
97 if( iwork == NULL ) {
99 goto exit_level_2;
100 }
101 work = (lapack_complex_float*)
102 LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
103 if( work == NULL ) {
105 goto exit_level_3;
106 }
107 /* Call middle-level interface */
108 info = LAPACKE_cggesx_work( matrix_layout, jobvsl, jobvsr, sort, selctg,
109 sense, n, a, lda, b, ldb, sdim, alpha, beta,
110 vsl, ldvsl, vsr, ldvsr, rconde, rcondv, work,
111 lwork, rwork, iwork, liwork, bwork );
112 /* Release memory and exit */
113 LAPACKE_free( work );
114exit_level_3:
115 LAPACKE_free( iwork );
116exit_level_2:
117 LAPACKE_free( rwork );
118exit_level_1:
119 if( LAPACKE_lsame( sort, 's' ) ) {
120 LAPACKE_free( bwork );
121 }
122exit_level_0:
123 if( info == LAPACK_WORK_MEMORY_ERROR ) {
124 LAPACKE_xerbla( "LAPACKE_cggesx", info );
125 }
126 return info;
127}
#define lapack_int
Definition: lapack.h:87
lapack_logical(* LAPACK_C_SELECT2)(const lapack_complex_float *, const lapack_complex_float *)
Definition: lapack.h:128
#define lapack_complex_float
Definition: lapack.h:46
#define lapack_logical
Definition: lapack.h:103
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACK_C2INT(x)
Definition: lapacke.h:49
#define LAPACKE_free(p)
Definition: lapacke.h:46
lapack_int LAPACKE_cggesx_work(int matrix_layout, char jobvsl, char jobvsr, char sort, LAPACK_C_SELECT2 selctg, char sense, lapack_int n, lapack_complex_float *a, lapack_int lda, lapack_complex_float *b, lapack_int ldb, lapack_int *sdim, lapack_complex_float *alpha, lapack_complex_float *beta, lapack_complex_float *vsl, lapack_int ldvsl, lapack_complex_float *vsr, lapack_int ldvsr, float *rconde, float *rcondv, lapack_complex_float *work, lapack_int lwork, float *rwork, lapack_int *iwork, lapack_int liwork, lapack_logical *bwork)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_int LAPACKE_cggesx(int matrix_layout, char jobvsl, char jobvsr, char sort, LAPACK_C_SELECT2 selctg, char sense, lapack_int n, lapack_complex_float *a, lapack_int lda, lapack_complex_float *b, lapack_int ldb, lapack_int *sdim, lapack_complex_float *alpha, lapack_complex_float *beta, lapack_complex_float *vsl, lapack_int ldvsl, lapack_complex_float *vsr, lapack_int ldvsr, float *rconde, float *rcondv)
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
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)