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Annotation of researchv10dc/cmd/matlab/src/rswap.f, revision 1.1

1.1     ! root        1:       SUBROUTINE RSWAP(N,X,INCX,Y,INCY)
        !             2:       DOUBLE PRECISION X(1),Y(1),T
        !             3:       IF (N .LE. 0) RETURN
        !             4:       IX = 1
        !             5:       IY = 1
        !             6:       IF (INCX.LT.0) IX = (-N+1)*INCX+1
        !             7:       IF (INCY.LT.0) IY = (-N+1)*INCY+1
        !             8:       DO 10 I = 1, N
        !             9:          T = X(IX)
        !            10:          X(IX) = Y(IY)
        !            11:          Y(IY) = T
        !            12:          IX = IX + INCX
        !            13:          IY = IY + INCY
        !            14:    10 CONTINUE
        !            15:       RETURN
        !            16:       END

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