LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_cgghd3()

lapack_int LAPACKE_cgghd3 ( int  matrix_layout,
char  compq,
char  compz,
lapack_int  n,
lapack_int  ilo,
lapack_int  ihi,
lapack_complex_float a,
lapack_int  lda,
lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float q,
lapack_int  ldq,
lapack_complex_float z,
lapack_int  ldz 
)

Definition at line 35 of file lapacke_cgghd3.c.

41{
42 lapack_int info = 0;
43 lapack_int lwork = -1;
44 lapack_complex_float* work = NULL;
45 lapack_complex_float work_query;
46
47 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48 LAPACKE_xerbla( "LAPACKE_cgghd3", -1 );
49 return -1;
50 }
51#ifndef LAPACK_DISABLE_NAN_CHECK
52 if( LAPACKE_get_nancheck() ) {
53 /* Optionally check input matrices for NaNs */
54 if( LAPACKE_cge_nancheck( matrix_layout, n, n, a, lda ) ) {
55 return -7;
56 }
57 if( LAPACKE_cge_nancheck( matrix_layout, n, n, b, ldb ) ) {
58 return -9;
59 }
60 if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
61 if( LAPACKE_cge_nancheck( matrix_layout, n, n, q, ldq ) ) {
62 return -11;
63 }
64 }
65 if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
66 if( LAPACKE_cge_nancheck( matrix_layout, n, n, z, ldz ) ) {
67 return -13;
68 }
69 }
70 }
71#endif
72 /* Query optimal working array(s) size */
73 info = LAPACKE_cgghd3_work( matrix_layout, compq, compz, n, ilo, ihi,
74 a, lda, b, ldb, q, ldq, z, ldz, &work_query,
75 lwork );
76 if( info != 0 ) {
77 goto exit_level_0;
78 }
79 lwork = LAPACK_C2INT( work_query );
80 /* Allocate memory for work arrays */
81 work = (lapack_complex_float*)
82 LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
83 if( work == NULL ) {
85 goto exit_level_0;
86 }
87 /* Call middle-level interface */
88 info = LAPACKE_cgghd3_work( matrix_layout, compq, compz, n, ilo, ihi,
89 a, lda, b, ldb, q, ldq, z, ldz, work,
90 lwork );
91 /* Release memory and exit */
92 LAPACKE_free( work );
93exit_level_0:
94 if( info == LAPACK_WORK_MEMORY_ERROR ) {
95 LAPACKE_xerbla( "LAPACKE_cgghd3", info );
96 }
97 return info;
98}
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_float
Definition: lapack.h:46
#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
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_int LAPACKE_cgghd3_work(int matrix_layout, char compq, char compz, lapack_int n, lapack_int ilo, lapack_int ihi, lapack_complex_float *a, lapack_int lda, lapack_complex_float *b, lapack_int ldb, lapack_complex_float *q, lapack_int ldq, lapack_complex_float *z, lapack_int ldz, lapack_complex_float *work, lapack_int lwork)
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_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
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