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[project @ 1996-07-19 01:29:05 by jwe] Initial revision
author jwe
date Fri, 19 Jul 1996 01:29:55 +0000
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children 15cddaacbc2d
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1 SUBROUTINE ZLACGV( N, X, INCX )
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2 *
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3 * -- LAPACK auxiliary routine (version 2.0) --
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4 * Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd.,
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5 * Courant Institute, Argonne National Lab, and Rice University
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6 * October 31, 1992
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7 *
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8 * .. Scalar Arguments ..
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9 INTEGER INCX, N
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10 * ..
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11 * .. Array Arguments ..
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12 COMPLEX*16 X( * )
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13 * ..
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14 *
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15 * Purpose
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16 * =======
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17 *
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18 * ZLACGV conjugates a complex vector of length N.
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19 *
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20 * Arguments
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21 * =========
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22 *
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23 * N (input) INTEGER
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24 * The length of the vector X. N >= 0.
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25 *
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26 * X (input/output) COMPLEX*16 array, dimension
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27 * (1+(N-1)*abs(INCX))
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28 * On entry, the vector of length N to be conjugated.
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29 * On exit, X is overwritten with conjg(X).
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30 *
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31 * INCX (input) INTEGER
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32 * The spacing between successive elements of X.
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33 *
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34 * =====================================================================
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35 *
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36 * .. Local Scalars ..
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37 INTEGER I, IOFF
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38 * ..
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39 * .. Intrinsic Functions ..
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40 INTRINSIC DCONJG
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41 * ..
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42 * .. Executable Statements ..
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43 *
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44 IF( INCX.EQ.1 ) THEN
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45 DO 10 I = 1, N
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46 X( I ) = DCONJG( X( I ) )
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47 10 CONTINUE
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48 ELSE
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49 IOFF = 1
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50 IF( INCX.LT.0 )
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51 $ IOFF = 1 - ( N-1 )*INCX
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52 DO 20 I = 1, N
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53 X( IOFF ) = DCONJG( X( IOFF ) )
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54 IOFF = IOFF + INCX
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55 20 CONTINUE
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56 END IF
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57 RETURN
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58 *
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59 * End of ZLACGV
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60 *
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61 END