LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_sggev3()

lapack_int LAPACKE_sggev3 ( int  matrix_layout,
char  jobvl,
char  jobvr,
lapack_int  n,
float *  a,
lapack_int  lda,
float *  b,
lapack_int  ldb,
float *  alphar,
float *  alphai,
float *  beta,
float *  vl,
lapack_int  ldvl,
float *  vr,
lapack_int  ldvr 
)

Definition at line 35 of file lapacke_sggev3.c.

40{
41 lapack_int info = 0;
42 lapack_int lwork = -1;
43 float* work = NULL;
44 float work_query;
45 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46 LAPACKE_xerbla( "LAPACKE_sggev3", -1 );
47 return -1;
48 }
49#ifndef LAPACK_DISABLE_NAN_CHECK
50 if( LAPACKE_get_nancheck() ) {
51 /* Optionally check input matrices for NaNs */
52 if( LAPACKE_sge_nancheck( matrix_layout, n, n, a, lda ) ) {
53 return -5;
54 }
55 if( LAPACKE_sge_nancheck( matrix_layout, n, n, b, ldb ) ) {
56 return -7;
57 }
58 }
59#endif
60 /* Query optimal working array(s) size */
61 info = LAPACKE_sggev3_work( matrix_layout, jobvl, jobvr, n, a, lda, b, ldb,
62 alphar, alphai, beta, vl, ldvl, vr, ldvr,
63 &work_query, lwork );
64 if( info != 0 ) {
65 goto exit_level_0;
66 }
67 lwork = (lapack_int)work_query;
68 /* Allocate memory for work arrays */
69 work = (float*)LAPACKE_malloc( sizeof(float) * lwork );
70 if( work == NULL ) {
72 goto exit_level_0;
73 }
74 /* Call middle-level interface */
75 info = LAPACKE_sggev3_work( matrix_layout, jobvl, jobvr, n, a, lda, b, ldb,
76 alphar, alphai, beta, vl, ldvl, vr, ldvr, work,
77 lwork );
78 /* Release memory and exit */
79 LAPACKE_free( work );
80exit_level_0:
81 if( info == LAPACK_WORK_MEMORY_ERROR ) {
82 LAPACKE_xerbla( "LAPACKE_sggev3", info );
83 }
84 return info;
85}
#define lapack_int
Definition: lapack.h:87
#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
lapack_int LAPACKE_sggev3_work(int matrix_layout, char jobvl, char jobvr, lapack_int n, float *a, lapack_int lda, float *b, lapack_int ldb, float *alphar, float *alphai, float *beta, float *vl, lapack_int ldvl, float *vr, lapack_int ldvr, float *work, lapack_int lwork)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
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