LAPACK  3.10.1 LAPACK: Linear Algebra PACKage

## ◆ LAPACKE_dlaswp()

 lapack_int LAPACKE_dlaswp ( int matrix_layout, lapack_int n, 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_dlaswp.c.

38 {
39  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
40  LAPACKE_xerbla( "LAPACKE_dlaswp", -1 );
41  return -1;
42  }
43 #ifndef LAPACK_DISABLE_NAN_CHECK
44  if( LAPACKE_get_nancheck() ) {
45  /* Optionally check input matrices for NaNs */
46  /*****************************************************************************
47  * Disable the check as is below, the check below was checking for NaN
48  * from lda to n since there is no (obvious) way to knowing m. This is not
49  * a good idea. We could get a lower bound of m by scanning from ipiv. Or
50  * we could pass on the NaN check to LAPACKE_dlaswp_work. For now disable
51  * the buggy Nan check.
52  * See forum: http://icl.cs.utk.edu/lapack-forum/viewtopic.php?t=4827
53  *****************************************************************************/
54  /* if( LAPACKE_dge_nancheck( matrix_layout, lda, n, a, lda ) ) {
55  * return -3;
56  * }
57  */
58  }
59 #endif
60  return LAPACKE_dlaswp_work( matrix_layout, n, a, lda, k1, k2, ipiv, incx );
61 }
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
lapack_int LAPACKE_dlaswp_work(int matrix_layout, lapack_int n, double *a, lapack_int lda, lapack_int k1, lapack_int k2, const lapack_int *ipiv, lapack_int incx)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
void LAPACKE_xerbla(const char *name, lapack_int info)
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