# icopy.f

          SUBROUTINE ICOPY (N, IX, INCX, IY, INCY)
    C***BEGIN PROLOGUE  ICOPY
    C***PURPOSE  Copy a vector.
    C***LIBRARY   SLATEC (BLAS)
    C***CATEGORY  D1A5
    C***TYPE      INTEGER (ICOPY-S, DCOPY-D, CCOPY-C, ICOPY-I)
    C***KEYWORDS  BLAS, COPY, LINEAR ALGEBRA, VECTOR
    C***AUTHOR  Boland, W. Robert, (LANL)
    C           Clemens, Reginald, (PLK)
    C***DESCRIPTION
    C
    C                B L A S  Subprogram
    C    Description of Parameters
    C
    C     --Input--
    C        N  number of elements in input vector(s)
    C       IX  integer vector with N elements
    C     INCX  storage spacing between elements of IX
    C       IY  integer vector with N elements
    C     INCY  storage spacing between elements of IY
    C
    C     --Output--
    C       IY  copy of vector IX (unchanged if N .LE. 0)
    C
    C     Copy integer IX to integer IY.
    C     For I = 0 to N-1, copy  IX(LX+I*INCX) to IY(LY+I*INCY),
    C     where LX = 1 if INCX .GE. 0, else LX = 1+(1-N)*INCX, and LY is
    C     defined in a similar way using INCY.
    C
    C***REFERENCES  C. L. Lawson, R. J. Hanson, D. R. Kincaid and F. T.
    C                 Krogh, Basic linear algebra subprograms for Fortran
    C                 usage, Algorithm No. 539, Transactions on Mathematical
    C                 Software 5, 3 (September 1979), pp. 308-323.
    C***ROUTINES CALLED  (NONE)
    C***REVISION HISTORY  (YYMMDD)
    C   930201  DATE WRITTEN
    C***END PROLOGUE  ICOPY