LAPACK 3.11.0 LAPACK: Linear Algebra PACKage
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## ◆ LAPACKE_cunbdb_work()

 lapack_int LAPACKE_cunbdb_work ( int matrix_layout, char trans, char signs, lapack_int m, lapack_int p, lapack_int q, lapack_complex_float * x11, lapack_int ldx11, lapack_complex_float * x12, lapack_int ldx12, lapack_complex_float * x21, lapack_int ldx21, lapack_complex_float * x22, lapack_int ldx22, float * theta, float * phi, lapack_complex_float * taup1, lapack_complex_float * taup2, lapack_complex_float * tauq1, lapack_complex_float * tauq2, lapack_complex_float * work, lapack_int lwork )

Definition at line 35 of file lapacke_cunbdb_work.c.

47{
48 lapack_int info = 0;
49 /* LAPACK function works with matrices in both layouts. It is supported
50 * through TRANS parameter. So all conversion between layouts can be
51 * completed in LAPACK function. See the table below which describes how
52 * every LAPACKE call is forwarded to corresponding LAPACK call.
53 *
54 * matrix_layout | trans_LAPACKE | -> trans_LAPACK
55 * | (trans) | (ltrans)
56 * -----------------+---------------+----------------
57 * LAPACK_COL_MAJOR | 'N' | -> 'N'
58 * LAPACK_COL_MAJOR | 'T' | -> 'T'
59 * LAPACK_ROW_MAJOR | 'N' | -> 'T'
60 * LAPACK_ROW_MAJOR | 'T' | -> 'T'
61 * (note that for row major layout trans parameter is ignored)
62 */
63 if( matrix_layout == LAPACK_COL_MAJOR ||
64 matrix_layout == LAPACK_ROW_MAJOR ) {
65 char ltrans;
66 if( !LAPACKE_lsame( trans, 't' ) && matrix_layout == LAPACK_COL_MAJOR ) {
67 ltrans = 'n';
68 } else {
69 ltrans = 't';
70 }
71 /* Call LAPACK function and adjust info */
72 LAPACK_cunbdb( &ltrans, &signs, &m, &p, &q, x11, &ldx11, x12, &ldx12,
73 x21, &ldx21, x22, &ldx22, theta, phi, taup1, taup2,
74 tauq1, tauq2, work, &lwork, &info );
75 if( info < 0 ) {
76 info = info - 1;
77 }
78 } else {
79 info = -1;
80 LAPACKE_xerbla( "LAPACKE_cunbdb_work", info );
81 }
82 return info;
83}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_cunbdb(...)
Definition: lapack.h:22404
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
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