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

 lapack_int LAPACKE_clarft_work ( int matrix_layout, char direct, char storev, lapack_int n, lapack_int k, const lapack_complex_float * v, lapack_int ldv, const lapack_complex_float * tau, lapack_complex_float * t, lapack_int ldt )

Definition at line 35 of file lapacke_clarft_work.c.

40{
41 lapack_int info = 0;
42 lapack_int nrows_v, ncols_v;
43 lapack_int ldt_t, ldv_t;
44 lapack_complex_float *v_t= NULL, *t_t= NULL;
45 if( matrix_layout == LAPACK_COL_MAJOR ) {
46 /* Call LAPACK function and adjust info */
47 LAPACK_clarft( &direct, &storev, &n, &k, v, &ldv, tau, t, &ldt );
48 if( info < 0 ) {
49 info = info - 1;
50 }
51 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
52 nrows_v = LAPACKE_lsame( storev, 'c' ) ? n :
53 ( LAPACKE_lsame( storev, 'r' ) ? k : 1);
54 ncols_v = LAPACKE_lsame( storev, 'c' ) ? k :
55 ( LAPACKE_lsame( storev, 'r' ) ? n : 1);
56 ldt_t = MAX(1,k);
57 ldv_t = MAX(1,nrows_v);
58 /* Check leading dimension(s) */
59 if( ldt < k ) {
60 info = -10;
61 LAPACKE_xerbla( "LAPACKE_clarft_work", info );
62 return info;
63 }
64 if( ldv < ncols_v ) {
65 info = -7;
66 LAPACKE_xerbla( "LAPACKE_clarft_work", info );
67 return info;
68 }
69 /* Allocate memory for temporary array(s) */
72 ldv_t * MAX(1,ncols_v) );
73 if( v_t == NULL ) {
75 goto exit_level_0;
76 }
78 LAPACKE_malloc( sizeof(lapack_complex_float) * ldt_t * MAX(1,k) );
79 if( t_t == NULL ) {
81 goto exit_level_1;
82 }
83 /* Transpose input matrices */
84 LAPACKE_cge_trans( matrix_layout, nrows_v, ncols_v, v, ldv, v_t, ldv_t );
85 /* Call LAPACK function and adjust info */
86 LAPACK_clarft( &direct, &storev, &n, &k, v_t, &ldv_t, tau, t_t,
87 &ldt_t );
88 info = 0; /* LAPACK call is ok! */
89 /* Transpose output matrices */
90 LAPACKE_cge_trans( LAPACK_COL_MAJOR, k, k, t_t, ldt_t, t, ldt );
91 /* Release memory and exit */
92 LAPACKE_free( t_t );
93exit_level_1:
94 LAPACKE_free( v_t );
95exit_level_0:
96 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
97 LAPACKE_xerbla( "LAPACKE_clarft_work", info );
98 }
99 } else {
100 info = -1;
101 LAPACKE_xerbla( "LAPACKE_clarft_work", info );
102 }
103 return info;
104}
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_float
Definition: lapack.h:46
#define LAPACK_clarft(...)
Definition: lapack.h:10564
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
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
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
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