158 lines
4.1 KiB
C++
158 lines
4.1 KiB
C++
/* fortran/zlacgv.f -- translated by f2c (version 20200916).
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You must link the resulting object file with libf2c:
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on Microsoft Windows system, link with libf2c.lib;
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on Linux or Unix systems, link with .../path/to/libf2c.a -lm
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or, if you install libf2c.a in a standard place, with -lf2c -lm
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-- in that order, at the end of the command line, as in
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cc *.o -lf2c -lm
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Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
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http://www.netlib.org/f2c/libf2c.zip
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "lmp_f2c.h"
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/* > \brief \b ZLACGV conjugates a complex vector. */
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/* =========== DOCUMENTATION =========== */
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/* Online html documentation available at */
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/* http://www.netlib.org/lapack/explore-html/ */
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/* > \htmlonly */
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/* > Download ZLACGV + dependencies */
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/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zlacgv.
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f"> */
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/* > [TGZ]</a> */
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/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zlacgv.
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f"> */
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/* > [ZIP]</a> */
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/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zlacgv.
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f"> */
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/* > [TXT]</a> */
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/* > \endhtmlonly */
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/* Definition: */
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/* =========== */
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/* SUBROUTINE ZLACGV( N, X, INCX ) */
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/* .. Scalar Arguments .. */
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/* INTEGER INCX, N */
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/* .. */
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/* .. Array Arguments .. */
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/* COMPLEX*16 X( * ) */
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/* .. */
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/* > \par Purpose: */
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/* ============= */
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/* > */
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/* > \verbatim */
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/* > */
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/* > ZLACGV conjugates a complex vector of length N. */
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/* > \endverbatim */
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/* Arguments: */
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/* ========== */
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/* > \param[in] N */
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/* > \verbatim */
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/* > N is INTEGER */
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/* > The length of the vector X. N >= 0. */
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/* > \endverbatim */
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/* > */
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/* > \param[in,out] X */
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/* > \verbatim */
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/* > X is COMPLEX*16 array, dimension */
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/* > (1+(N-1)*abs(INCX)) */
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/* > On entry, the vector of length N to be conjugated. */
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/* > On exit, X is overwritten with conjg(X). */
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/* > \endverbatim */
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/* > */
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/* > \param[in] INCX */
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/* > \verbatim */
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/* > INCX is INTEGER */
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/* > The spacing between successive elements of X. */
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/* > \endverbatim */
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/* Authors: */
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/* ======== */
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/* > \author Univ. of Tennessee */
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/* > \author Univ. of California Berkeley */
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/* > \author Univ. of Colorado Denver */
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/* > \author NAG Ltd. */
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/* > \ingroup complex16OTHERauxiliary */
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/* ===================================================================== */
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/* Subroutine */ int zlacgv_(integer *n, doublecomplex *x, integer *incx)
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{
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/* System generated locals */
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integer i__1, i__2;
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doublecomplex z__1;
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/* Builtin functions */
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void d_cnjg(doublecomplex *, doublecomplex *);
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/* Local variables */
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integer i__, ioff;
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/* -- LAPACK auxiliary routine -- */
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/* -- LAPACK is a software package provided by Univ. of Tennessee, -- */
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/* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- */
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/* .. Scalar Arguments .. */
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/* .. */
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/* .. Array Arguments .. */
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/* .. */
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/* ===================================================================== */
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/* .. Local Scalars .. */
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/* .. */
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/* .. Intrinsic Functions .. */
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/* .. */
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/* .. Executable Statements .. */
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/* Parameter adjustments */
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--x;
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/* Function Body */
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if (*incx == 1) {
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i__1 = *n;
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for (i__ = 1; i__ <= i__1; ++i__) {
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i__2 = i__;
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d_cnjg(&z__1, &x[i__]);
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x[i__2].r = z__1.r, x[i__2].i = z__1.i;
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/* L10: */
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}
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} else {
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ioff = 1;
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if (*incx < 0) {
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ioff = 1 - (*n - 1) * *incx;
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}
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i__1 = *n;
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for (i__ = 1; i__ <= i__1; ++i__) {
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i__2 = ioff;
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d_cnjg(&z__1, &x[ioff]);
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x[i__2].r = z__1.r, x[i__2].i = z__1.i;
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ioff += *incx;
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/* L20: */
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}
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}
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return 0;
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/* End of ZLACGV */
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} /* zlacgv_ */
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#ifdef __cplusplus
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}
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#endif
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