mirror of
https://github.com/vale981/arb
synced 2025-03-06 01:41:39 -05:00
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/*=============================================================================
|
|
|
|
This file is part of ARB.
|
|
|
|
ARB is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ARB is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with ARB; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
=============================================================================*/
|
|
/******************************************************************************
|
|
|
|
Copyright (C) 2012, 2013 Fredrik Johansson
|
|
|
|
******************************************************************************/
|
|
|
|
#include "zeta.h"
|
|
|
|
void
|
|
zeta_ui_vec(fmprb_ptr x, ulong start, long num, long prec)
|
|
{
|
|
long i, num_odd, num_even, start_odd;
|
|
fmprb_ptr tmp;
|
|
|
|
num_odd = num / 2 + (start & num & 1);
|
|
num_even = num - num_odd;
|
|
|
|
start_odd = start % 2;
|
|
|
|
zeta_ui_vec_even(x, start + start_odd, num_even, prec);
|
|
zeta_ui_vec_odd(x + num_even, start + !start_odd, num_odd, prec);
|
|
|
|
/* interleave */
|
|
tmp = flint_malloc(sizeof(fmprb_struct) * num);
|
|
for (i = 0; i < num_even; i++) tmp[i] = x[i];
|
|
for (i = 0; i < num_odd; i++) tmp[num_even + i] = x[num_even + i];
|
|
for (i = 0; i < num_even; i++) x[start_odd + 2 * i] = tmp[i];
|
|
for (i = 0; i < num_odd; i++) x[!start_odd + 2 * i] = tmp[num_even + i];
|
|
flint_free(tmp);
|
|
}
|
|
|