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/*  -- translated by f2c (version 19940927).
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   You must link the resulting object file with the libraries:
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	-lf2c -lm   (in that order)
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*/
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#include "f2c.h"
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/* Subroutine */ int dcopy_(integer *n, doublereal *dx, integer *incx, 
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	doublereal *dy, integer *incy)
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{
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    /* System generated locals */
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    integer i__1;
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    /* Local variables */
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    static integer i, m, ix, iy, mp1;
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/*     copies a vector, x, to a vector, y.   
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       uses unrolled loops for increments equal to one.   
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       jack dongarra, linpack, 3/11/78.   
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       modified 12/3/93, array(1) declarations changed to array(*)   
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   Parameter adjustments   
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       Function Body */
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#define DY(I) dy[(I)-1]
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#define DX(I) dx[(I)-1]
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    if (*n <= 0) {
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	return 0;
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    }
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    if (*incx == 1 && *incy == 1) {
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	goto L20;
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    }
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/*        code for unequal increments or equal increments   
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            not equal to 1 */
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    ix = 1;
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    iy = 1;
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    if (*incx < 0) {
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	ix = (-(*n) + 1) * *incx + 1;
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    }
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    if (*incy < 0) {
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	iy = (-(*n) + 1) * *incy + 1;
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    }
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    i__1 = *n;
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    for (i = 1; i <= *n; ++i) {
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	DY(iy) = DX(ix);
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	ix += *incx;
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	iy += *incy;
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/* L10: */
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    }
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    return 0;
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/*        code for both increments equal to 1   
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          clean-up loop */
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L20:
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    m = *n % 7;
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    if (m == 0) {
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	goto L40;
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    }
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    i__1 = m;
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    for (i = 1; i <= m; ++i) {
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	DY(i) = DX(i);
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/* L30: */
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    }
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    if (*n < 7) {
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	return 0;
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    }
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L40:
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    mp1 = m + 1;
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    i__1 = *n;
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    for (i = mp1; i <= *n; i += 7) {
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	DY(i) = DX(i);
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	DY(i + 1) = DX(i + 1);
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	DY(i + 2) = DX(i + 2);
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	DY(i + 3) = DX(i + 3);
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	DY(i + 4) = DX(i + 4);
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	DY(i + 5) = DX(i + 5);
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	DY(i + 6) = DX(i + 6);
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/* L50: */
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    }
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    return 0;
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} /* dcopy_ */
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