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/* cla_wwaddw.f -- translated by f2c (version 20061008).
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
*/
#include "f2c.h"
#include "blaswrap.h"
/* Subroutine */ int cla_wwaddw__(integer *n, complex *x, complex *y, complex
*w)
{
/* System generated locals */
integer i__1, i__2, i__3, i__4, i__5;
complex q__1, q__2, q__3;
/* Local variables */
integer i__;
complex s;
/* -- LAPACK routine (version 3.2) -- */
/* -- Contributed by James Demmel, Deaglan Halligan, Yozo Hida and -- */
/* -- Jason Riedy of Univ. of California Berkeley. -- */
/* -- November 2008 -- */
/* -- LAPACK is a software package provided by Univ. of Tennessee, -- */
/* -- Univ. of California Berkeley and NAG Ltd. -- */
/* .. */
/* .. Scalar Arguments .. */
/* .. */
/* .. Array Arguments .. */
/* .. */
/* Purpose */
/* ======= */
/* CLA_WWADDW adds a vector W into a doubled-single vector (X, Y). */
/* This works for all extant IBM's hex and binary floating point */
/* arithmetics, but not for decimal. */
/* Arguments */
/* ========= */
/* N (input) INTEGER */
/* The length of vectors X, Y, and W. */
/* X, Y (input/output) COMPLEX array, length N */
/* The doubled-single accumulation vector. */
/* W (input) COMPLEX array, length N */
/* The vector to be added. */
/* .. */
/* .. Local Scalars .. */
/* .. */
/* .. Executable Statements .. */
/* Parameter adjustments */
--w;
--y;
--x;
/* Function Body */
i__1 = *n;
for (i__ = 1; i__ <= i__1; ++i__) {
i__2 = i__;
i__3 = i__;
q__1.r = x[i__2].r + w[i__3].r, q__1.i = x[i__2].i + w[i__3].i;
s.r = q__1.r, s.i = q__1.i;
q__2.r = s.r + s.r, q__2.i = s.i + s.i;
q__1.r = q__2.r - s.r, q__1.i = q__2.i - s.i;
s.r = q__1.r, s.i = q__1.i;
i__2 = i__;
i__3 = i__;
q__3.r = x[i__3].r - s.r, q__3.i = x[i__3].i - s.i;
i__4 = i__;
q__2.r = q__3.r + w[i__4].r, q__2.i = q__3.i + w[i__4].i;
i__5 = i__;
q__1.r = q__2.r + y[i__5].r, q__1.i = q__2.i + y[i__5].i;
y[i__2].r = q__1.r, y[i__2].i = q__1.i;
i__2 = i__;
x[i__2].r = s.r, x[i__2].i = s.i;
/* L10: */
}
return 0;
} /* cla_wwaddw__ */
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