/*  -- translated by f2c (version 19940927).

   You must link the resulting object file with the libraries:

	-lf2c -lm   (in that order)

*/

#include "f2c.h"

doublereal dasum_(integer *n, doublereal *dx, integer *incx)

{

    /* System generated locals */

    integer i__1, i__2;

    doublereal ret_val, d__1, d__2, d__3, d__4, d__5, d__6;

    /* Local variables */

    static integer i, m;

    static doublereal dtemp;

    static integer nincx, mp1;

/*     takes the sum of the absolute values.   

       jack dongarra, linpack, 3/11/78.   

       modified 3/93 to return if incx .le. 0.   

       modified 12/3/93, array(1) declarations changed to array(*)   

   Parameter adjustments   

       Function Body */

#define DX(I) dx[(I)-1]

    ret_val = 0.;

    dtemp = 0.;

    if (*n <= 0 || *incx <= 0) {

	return ret_val;

    }

    if (*incx == 1) {

	goto L20;

    }

/*        code for increment not equal to 1 */

    nincx = *n * *incx;

    i__1 = nincx;

    i__2 = *incx;

    for (i = 1; *incx < 0 ? i >= nincx : i <= nincx; i += *incx) {

	dtemp += (d__1 = DX(i), abs(d__1));

/* L10: */

    }

    ret_val = dtemp;

    return ret_val;

/*        code for increment equal to 1   

          clean-up loop */

L20:

    m = *n % 6;

    if (m == 0) {

	goto L40;

    }

    i__2 = m;

    for (i = 1; i <= m; ++i) {

	dtemp += (d__1 = DX(i), abs(d__1));

/* L30: */

    }

    if (*n < 6) {

	goto L60;

    }

L40:

    mp1 = m + 1;

    i__2 = *n;

    for (i = mp1; i <= *n; i += 6) {

	dtemp = dtemp + (d__1 = DX(i), abs(d__1)) + (d__2 = DX(i + 1), abs(

		d__2)) + (d__3 = DX(i + 2), abs(d__3)) + (d__4 = DX(i + 3), 

		abs(d__4)) + (d__5 = DX(i + 4), abs(d__5)) + (d__6 = DX(i + 5)

		, abs(d__6));

/* L50: */

    }

L60:

    ret_val = dtemp;

    return ret_val;

} /* dasum_ */