#include "blaswrap.h"
#ifdef __cplusplus
extern "C" {
#endif 
#include "f2c.h"

/* Subroutine */ int dcopy_(integer *n, doublereal *dx, integer *incx, 
	doublereal *dy, integer *incy)
{
    /* System generated locals */
    integer i__1;
    /* Local variables */
    static integer i__, m, ix, iy, mp1;
/*     copies a vector, x, to a vector, y.   
       uses unrolled loops for increments equal to one.   
       jack dongarra, linpack, 3/11/78.   
       modified 12/3/93, array(1) declarations changed to array(*)   
       Parameter adjustments */
    --dy;
    --dx;
    /* Function Body */
    if (*n <= 0) {
	return 0;
    }
    if (*incx == 1 && *incy == 1) {
	goto L20;
    }
/*        code for unequal increments or equal increments   
            not equal to 1 */
    ix = 1;
    iy = 1;
    if (*incx < 0) {
	ix = (-(*n) + 1) * *incx + 1;
    }
    if (*incy < 0) {
	iy = (-(*n) + 1) * *incy + 1;
    }
    i__1 = *n;
    for (i__ = 1; i__ <= i__1; ++i__) {
	dy[iy] = dx[ix];
	ix += *incx;
	iy += *incy;
/* L10: */
    }
    return 0;
/*        code for both increments equal to 1   
          clean-up loop */
L20:
    m = *n % 7;
    if (m == 0) {
	goto L40;
    }
    i__1 = m;
    for (i__ = 1; i__ <= i__1; ++i__) {
	dy[i__] = dx[i__];
/* L30: */
    }
    if (*n < 7) {
	return 0;
    }
L40:
    mp1 = m + 1;
    i__1 = *n;
    for (i__ = mp1; i__ <= i__1; i__ += 7) {
	dy[i__] = dx[i__];
	dy[i__ + 1] = dx[i__ + 1];
	dy[i__ + 2] = dx[i__ + 2];
	dy[i__ + 3] = dx[i__ + 3];
	dy[i__ + 4] = dx[i__ + 4];
	dy[i__ + 5] = dx[i__ + 5];
	dy[i__ + 6] = dx[i__ + 6];
/* L50: */
    }
    return 0;
} /* dcopy_ */
#ifdef __cplusplus
}
#endif

