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/* lapack/complex16/zlacgv.f -- translated by f2c (version 20050501).
You must link the resulting object file with libf2c:
on Microsoft Windows system, link with libf2c.lib;
on Linux or Unix systems, link with .../path/to/libf2c.a -lm
or, if you install libf2c.a in a standard place, with -lf2c -lm
-- in that order, at the end of the command line, as in
cc *.o -lf2c -lm
Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
http://www.netlib.org/f2c/libf2c.zip
*/
#ifdef __cplusplus
extern "C" {
#endif
#include "v3p_netlib.h"
/*< SUBROUTINE ZLACGV( N, X, INCX ) >*/
/* Subroutine */ int zlacgv_(integer *n, doublecomplex *x, integer *incx)
{
/* System generated locals */
integer i__1, i__2;
doublecomplex z__1;
/* Builtin functions */
void d_cnjg(doublecomplex *, doublecomplex *);
/* Local variables */
integer i__, ioff;
/* -- LAPACK auxiliary routine (version 3.0) -- */
/* Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd., */
/* Courant Institute, Argonne National Lab, and Rice University */
/* October 31, 1992 */
/* .. Scalar Arguments .. */
/*< INTEGER INCX, N >*/
/* .. */
/* .. Array Arguments .. */
/*< COMPLEX*16 X( * ) >*/
/* .. */
/* Purpose */
/* ======= */
/* ZLACGV conjugates a complex vector of length N. */
/* Arguments */
/* ========= */
/* N (input) INTEGER */
/* The length of the vector X. N >= 0. */
/* X (input/output) COMPLEX*16 array, dimension */
/* (1+(N-1)*abs(INCX)) */
/* On entry, the vector of length N to be conjugated. */
/* On exit, X is overwritten with conjg(X). */
/* INCX (input) INTEGER */
/* The spacing between successive elements of X. */
/* ===================================================================== */
/* .. Local Scalars .. */
/*< INTEGER I, IOFF >*/
/* .. */
/* .. Intrinsic Functions .. */
/*< INTRINSIC DCONJG >*/
/* .. */
/* .. Executable Statements .. */
/*< IF( INCX.EQ.1 ) THEN >*/
/* Parameter adjustments */
--x;
/* Function Body */
if (*incx == 1) {
/*< DO 10 I = 1, N >*/
i__1 = *n;
for (i__ = 1; i__ <= i__1; ++i__) {
/*< X( I ) = DCONJG( X( I ) ) >*/
i__2 = i__;
d_cnjg(&z__1, &x[i__]);
x[i__2].r = z__1.r, x[i__2].i = z__1.i;
/*< 10 CONTINUE >*/
/* L10: */
}
/*< ELSE >*/
} else {
/*< IOFF = 1 >*/
ioff = 1;
/*< >*/
if (*incx < 0) {
ioff = 1 - (*n - 1) * *incx;
}
/*< DO 20 I = 1, N >*/
i__1 = *n;
for (i__ = 1; i__ <= i__1; ++i__) {
/*< X( IOFF ) = DCONJG( X( IOFF ) ) >*/
i__2 = ioff;
d_cnjg(&z__1, &x[ioff]);
x[i__2].r = z__1.r, x[i__2].i = z__1.i;
/*< IOFF = IOFF + INCX >*/
ioff += *incx;
/*< 20 CONTINUE >*/
/* L20: */
}
/*< END IF >*/
}
/*< RETURN >*/
return 0;
/* End of ZLACGV */
/*< END >*/
} /* zlacgv_ */
#ifdef __cplusplus
}
#endif
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