1: *> \brief \b ZLACGV
2: *
3: * =========== DOCUMENTATION ===========
4: *
5: * Online html documentation available at
6: * http://www.netlib.org/lapack/explore-html/
7: *
8: *> \htmlonly
9: *> Download ZLACGV + dependencies
10: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zlacgv.f">
11: *> [TGZ]</a>
12: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zlacgv.f">
13: *> [ZIP]</a>
14: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zlacgv.f">
15: *> [TXT]</a>
16: *> \endhtmlonly
17: *
18: * Definition:
19: * ===========
20: *
21: * SUBROUTINE ZLACGV( N, X, INCX )
22: *
23: * .. Scalar Arguments ..
24: * INTEGER INCX, N
25: * ..
26: * .. Array Arguments ..
27: * COMPLEX*16 X( * )
28: * ..
29: *
30: *
31: *> \par Purpose:
32: * =============
33: *>
34: *> \verbatim
35: *>
36: *> ZLACGV conjugates a complex vector of length N.
37: *> \endverbatim
38: *
39: * Arguments:
40: * ==========
41: *
42: *> \param[in] N
43: *> \verbatim
44: *> N is INTEGER
45: *> The length of the vector X. N >= 0.
46: *> \endverbatim
47: *>
48: *> \param[in,out] X
49: *> \verbatim
50: *> X is COMPLEX*16 array, dimension
51: *> (1+(N-1)*abs(INCX))
52: *> On entry, the vector of length N to be conjugated.
53: *> On exit, X is overwritten with conjg(X).
54: *> \endverbatim
55: *>
56: *> \param[in] INCX
57: *> \verbatim
58: *> INCX is INTEGER
59: *> The spacing between successive elements of X.
60: *> \endverbatim
61: *
62: * Authors:
63: * ========
64: *
65: *> \author Univ. of Tennessee
66: *> \author Univ. of California Berkeley
67: *> \author Univ. of Colorado Denver
68: *> \author NAG Ltd.
69: *
70: *> \date November 2011
71: *
72: *> \ingroup complex16OTHERauxiliary
73: *
74: * =====================================================================
75: SUBROUTINE ZLACGV( N, X, INCX )
76: *
77: * -- LAPACK auxiliary routine (version 3.4.0) --
78: * -- LAPACK is a software package provided by Univ. of Tennessee, --
79: * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
80: * November 2011
81: *
82: * .. Scalar Arguments ..
83: INTEGER INCX, N
84: * ..
85: * .. Array Arguments ..
86: COMPLEX*16 X( * )
87: * ..
88: *
89: * =====================================================================
90: *
91: * .. Local Scalars ..
92: INTEGER I, IOFF
93: * ..
94: * .. Intrinsic Functions ..
95: INTRINSIC DCONJG
96: * ..
97: * .. Executable Statements ..
98: *
99: IF( INCX.EQ.1 ) THEN
100: DO 10 I = 1, N
101: X( I ) = DCONJG( X( I ) )
102: 10 CONTINUE
103: ELSE
104: IOFF = 1
105: IF( INCX.LT.0 )
106: $ IOFF = 1 - ( N-1 )*INCX
107: DO 20 I = 1, N
108: X( IOFF ) = DCONJG( X( IOFF ) )
109: IOFF = IOFF + INCX
110: 20 CONTINUE
111: END IF
112: RETURN
113: *
114: * End of ZLACGV
115: *
116: END
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