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NAME
     dlaswp - perform a series of row interchanges on the  matrix
     A

SYNOPSIS
     SUBROUTINE DLASWP( N, A, LDA, K1, K2, IPIV, INCX )

     INTEGER INCX, K1, K2, LDA, N

     INTEGER IPIV( * )

     DOUBLE PRECISION A( LDA, * )



     #include <sunperf.h>

     void dlaswp(int n, double *da, int lda, int k1, int k2,  int
               *ipivot, int incx) ;

PURPOSE
     DLASWP performs a series of row interchanges on  the  matrix
     A.   One  row  interchange  is initiated for each of rows K1
     through K2 of A.


ARGUMENTS
     N         (input) INTEGER
               The number of columns of the matrix A.

     A         (input/output) DOUBLE PRECISION  array,  dimension
               (LDA,N)
               On entry, the matrix  of  column  dimension  N  to
               which  the  row  interchanges will be applied.  On
               exit, the permuted matrix.

     LDA       (input) INTEGER
               The leading dimension of the array A.

     K1        (input) INTEGER
               The first element of IPIV for which a  row  inter-
               change will be done.

     K2        (input) INTEGER
               The last element of IPIV for which  a  row  inter-
               change will be done.

     IPIV      (input) INTEGER array, dimension (M*abs(INCX))
               The vector of pivot indices.  Only the elements in
               positions  K1  through  K2  of  IPIV are accessed.
               IPIV(K) = L implies rows K and L are to be  inter-
               changed.

     INCX      (input) INTEGER
               The increment between successive values  of  IPIV.
               If  IPIV  is  negative,  the pivots are applied in
               reverse order.

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