LAPACK  3.8.0
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 36 of file lapacke_dlaswp.c.

39 {
40  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
41  LAPACKE_xerbla( "LAPACKE_dlaswp", -1 );
42  return -1;
43  }
44 #ifndef LAPACK_DISABLE_NAN_CHECK
45  if( LAPACKE_get_nancheck() ) {
46  /* Optionally check input matrices for NaNs */
47  /*****************************************************************************
48  * Disable the check as is below, the check below was checking for NaN
49  * from lda to n since there is no (obvious) way to knowing m. This is not
50  * a good idea. We could get a lower bound of m by scanning from ipiv. Or
51  * we could pass on the NaN check to LAPACKE_dlaswp_work. For now disable
52  * the buggy Nan check.
53  * See forum: http://icl.cs.utk.edu/lapack-forum/viewtopic.php?t=4827
54  *****************************************************************************/
55  /* if( LAPACKE_dge_nancheck( matrix_layout, lda, n, a, lda ) ) {
56  * return -3;
57  * }
58  */
59  }
60 #endif
61  return LAPACKE_dlaswp_work( matrix_layout, n, a, lda, k1, k2, ipiv, incx );
62 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
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)
int LAPACKE_get_nancheck()
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