{
for (ii = 1, i = 1; i <= n; i += 2, ii++)
{
ni = i + nmod + WFILT_IOFF;
nj = i + nmod + WFILT_JOFF;
for (k = 1; k <= WFILT_NCOF; k++)
{
jf = n1 & (ni + k);
jr = n1 & (nj + k);
wksp[ii] += WFILT_CC[k] * a[jf + 1];
wksp[ii + nh] += WFILT_CR[k] * a[jr + 1];
}
}
}
else
{
for (ii = 1, i = 1; i <= n; i += 2, ii++)
{
ai = a[ii];
ai1 = a[ii + nh];
ni = i + nmod + WFILT_IOFF;
nj = i + nmod + WFILT_JOFF;
for (k = 1;k <= WFILT_NCOF; k++)
{
jf = (n1 & (ni + k)) + 1;
jr = (n1 & (nj + k)) + 1;
wksp[jf] += WFILT_CC[k] * ai;
wksp[jr] += WFILT_CR[k] * ai1;
}
}
for (j = 1; j <= n; j++) a[j] = wksp[j];
}
}
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