LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
Loading...
Searching...
No Matches

◆ LAPACKE_slacpy_work()

lapack_int LAPACKE_slacpy_work ( int  matrix_layout,
char  uplo,
lapack_int  m,
lapack_int  n,
const float *  a,
lapack_int  lda,
float *  b,
lapack_int  ldb 
)

Definition at line 35 of file lapacke_slacpy_work.c.

38{
39 lapack_int info = 0;
40 if( matrix_layout == LAPACK_COL_MAJOR ) {
41 /* Call LAPACK function and adjust info */
42 LAPACK_slacpy( &uplo, &m, &n, a, &lda, b, &ldb );
43 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
44 lapack_int lda_t = MAX(1,m);
45 lapack_int ldb_t = MAX(1,m);
46 float* a_t = NULL;
47 float* b_t = NULL;
48 /* Check leading dimension(s) */
49 if( lda < n ) {
50 info = -6;
51 LAPACKE_xerbla( "LAPACKE_slacpy_work", info );
52 return info;
53 }
54 if( ldb < n ) {
55 info = -8;
56 LAPACKE_xerbla( "LAPACKE_slacpy_work", info );
57 return info;
58 }
59 /* Allocate memory for temporary array(s) */
60 a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
61 if( a_t == NULL ) {
63 goto exit_level_0;
64 }
65 b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,n) );
66 if( b_t == NULL ) {
68 goto exit_level_1;
69 }
70 /* Transpose input matrices */
71 LAPACKE_sge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
72 /* Call LAPACK function and adjust info */
73 LAPACK_slacpy( &uplo, &m, &n, a_t, &lda_t, b_t, &ldb_t );
74 info = 0; /* LAPACK call is ok! */
75 /* Transpose output matrices */
76 LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
77 /* Release memory and exit */
78 LAPACKE_free( b_t );
79exit_level_1:
80 LAPACKE_free( a_t );
81exit_level_0:
82 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
83 LAPACKE_xerbla( "LAPACKE_slacpy_work", info );
84 }
85 } else {
86 info = -1;
87 LAPACKE_xerbla( "LAPACKE_slacpy_work", info );
88 }
89 return info;
90}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_slacpy(...)
Definition: lapack.h:9327
#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
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
Here is the call graph for this function:
Here is the caller graph for this function: