LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_zlaswp_work()

lapack_int LAPACKE_zlaswp_work ( int  matrix_layout,
lapack_int  n,
lapack_complex_double a,
lapack_int  lda,
lapack_int  k1,
lapack_int  k2,
const lapack_int ipiv,
lapack_int  incx 
)

Definition at line 35 of file lapacke_zlaswp_work.c.

39{
40 lapack_int info = 0;
41 if( matrix_layout == LAPACK_COL_MAJOR ) {
42 /* Call LAPACK function and adjust info */
43 LAPACK_zlaswp( &n, a, &lda, &k1, &k2, ipiv, &incx );
44 if( info < 0 ) {
45 info = info - 1;
46 }
47 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
48 lapack_int lda_t = MAX(1,k2);
49 lapack_int i;
50 for( i = k1; i <= k2; i++ ) {
51 lda_t = MAX( lda_t, ipiv[k1 + ( i - k1 ) * ABS( incx ) - 1] );
52 }
53 lapack_complex_double* a_t = NULL;
54 /* Check leading dimension(s) */
55 if( lda < n ) {
56 info = -4;
57 LAPACKE_xerbla( "LAPACKE_zlaswp_work", info );
58 return info;
59 }
60 /* Allocate memory for temporary array(s) */
62 LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
63 if( a_t == NULL ) {
65 goto exit_level_0;
66 }
67 /* Transpose input matrices */
68 LAPACKE_zge_trans( matrix_layout, lda_t, n, a, lda, a_t, lda_t );
69 /* Call LAPACK function and adjust info */
70 LAPACK_zlaswp( &n, a_t, &lda_t, &k1, &k2, ipiv, &incx );
71 info = 0; /* LAPACK call is ok! */
72 /* Transpose output matrices */
73 LAPACKE_zge_trans( LAPACK_COL_MAJOR, lda_t, n, a_t, lda_t, a, lda );
74 /* Release memory and exit */
75 LAPACKE_free( a_t );
76exit_level_0:
77 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
78 LAPACKE_xerbla( "LAPACKE_zlaswp_work", info );
79 }
80 } else {
81 info = -1;
82 LAPACKE_xerbla( "LAPACKE_zlaswp_work", info );
83 }
84 return info;
85}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_zlaswp
Definition: lapack.h:10959
#define lapack_complex_double
Definition: lapack.h:64
#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_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
#define ABS(x)
Definition: lapacke_utils.h:43
#define MAX(x, y)
Definition: lapacke_utils.h:46
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