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

 lapack_int LAPACKE_sormlq_work ( int matrix_layout, char side, char trans, lapack_int m, lapack_int n, lapack_int k, const float * a, lapack_int lda, const float * tau, float * c, lapack_int ldc, float * work, lapack_int lwork )

Definition at line 35 of file lapacke_sormlq_work.c.

40{
41 lapack_int info = 0;
42 if( matrix_layout == LAPACK_COL_MAJOR ) {
43 /* Call LAPACK function and adjust info */
44 LAPACK_sormlq( &side, &trans, &m, &n, &k, a, &lda, tau, c, &ldc, work,
45 &lwork, &info );
46 if( info < 0 ) {
47 info = info - 1;
48 }
49 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
50 lapack_int r = LAPACKE_lsame( side, 'l' ) ? m : n;
51 lapack_int lda_t = MAX(1,k);
52 lapack_int ldc_t = MAX(1,m);
53 float *a_t = NULL;
54 float *c_t = NULL;
55 /* Check leading dimension(s) */
56 if( lda < r ) {
57 info = -8;
58 LAPACKE_xerbla( "LAPACKE_sormlq_work", info );
59 return info;
60 }
61 if( ldc < n ) {
62 info = -11;
63 LAPACKE_xerbla( "LAPACKE_sormlq_work", info );
64 return info;
65 }
66 /* Query optimal working array(s) size if requested */
67 if( lwork == -1 ) {
68 LAPACK_sormlq( &side, &trans, &m, &n, &k, a, &lda_t, tau, c, &ldc_t,
69 work, &lwork, &info );
70 return (info < 0) ? (info - 1) : info;
71 }
72 /* Allocate memory for temporary array(s) */
73 a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,r) );
74 if( a_t == NULL ) {
76 goto exit_level_0;
77 }
78 c_t = (float*)LAPACKE_malloc( sizeof(float) * ldc_t * MAX(1,n) );
79 if( c_t == NULL ) {
81 goto exit_level_1;
82 }
83 /* Transpose input matrices */
84 LAPACKE_sge_trans( matrix_layout, k, r, a, lda, a_t, lda_t );
85 LAPACKE_sge_trans( matrix_layout, m, n, c, ldc, c_t, ldc_t );
86 /* Call LAPACK function and adjust info */
87 LAPACK_sormlq( &side, &trans, &m, &n, &k, a_t, &lda_t, tau, c_t, &ldc_t,
88 work, &lwork, &info );
89 if( info < 0 ) {
90 info = info - 1;
91 }
92 /* Transpose output matrices */
93 LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
94 /* Release memory and exit */
95 LAPACKE_free( c_t );
96exit_level_1:
97 LAPACKE_free( a_t );
98exit_level_0:
99 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
100 LAPACKE_xerbla( "LAPACKE_sormlq_work", info );
101 }
102 } else {
103 info = -1;
104 LAPACKE_xerbla( "LAPACKE_sormlq_work", info );
105 }
106 return info;
107}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_sormlq(...)
Definition: lapack.h:11625
#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)
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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