LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_zggesx()

lapack_int LAPACKE_zggesx ( int  matrix_layout,
char  jobvsl,
char  jobvsr,
char  sort,
LAPACK_Z_SELECT2  selctg,
char  sense,
lapack_int  n,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double b,
lapack_int  ldb,
lapack_int sdim,
lapack_complex_double alpha,
lapack_complex_double beta,
lapack_complex_double vsl,
lapack_int  ldvsl,
lapack_complex_double vsr,
lapack_int  ldvsr,
double *  rconde,
double *  rcondv 
)

Definition at line 35 of file lapacke_zggesx.c.

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 double* rwork = NULL;
52 lapack_complex_double* work = NULL;
53 lapack_int iwork_query;
54 lapack_complex_double work_query;
55 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
56 LAPACKE_xerbla( "LAPACKE_zggesx", -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_zge_nancheck( matrix_layout, n, n, a, lda ) ) {
63 return -8;
64 }
65 if( LAPACKE_zge_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 = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,8*n) );
80 if( rwork == NULL ) {
82 goto exit_level_1;
83 }
84 /* Query optimal working array(s) size */
85 info = LAPACKE_zggesx_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_Z2INT( 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_double*)
102 LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
103 if( work == NULL ) {
105 goto exit_level_3;
106 }
107 /* Call middle-level interface */
108 info = LAPACKE_zggesx_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_zggesx", info );
125 }
126 return info;
127}
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_double
Definition: lapack.h:64
#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 LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
lapack_int LAPACKE_zggesx_work(int matrix_layout, char jobvsl, char jobvsr, char sort, LAPACK_Z_SELECT2 selctg, char sense, lapack_int n, lapack_complex_double *a, lapack_int lda, lapack_complex_double *b, lapack_int ldb, lapack_int *sdim, lapack_complex_double *alpha, lapack_complex_double *beta, lapack_complex_double *vsl, lapack_int ldvsl, lapack_complex_double *vsr, lapack_int ldvsr, double *rconde, double *rcondv, lapack_complex_double *work, lapack_int lwork, double *rwork, lapack_int *iwork, lapack_int liwork, lapack_logical *bwork)
int LAPACKE_get_nancheck(void)
#define LAPACK_Z2INT(x)
Definition: lapacke.h:50
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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