1 /* mpn_sec_add_1, mpn_sec_sub_1
2
3 Contributed to the GNU project by Niels Möller
4
5 Copyright 2013, 2014 Free Software Foundation, Inc.
6
7 This file is part of the GNU MP Library.
8
9 The GNU MP Library is free software; you can redistribute it and/or modify
10 it under the terms of either:
11
12 * the GNU Lesser General Public License as published by the Free
13 Software Foundation; either version 3 of the License, or (at your
14 option) any later version.
15
16 or
17
18 * the GNU General Public License as published by the Free Software
19 Foundation; either version 2 of the License, or (at your option) any
20 later version.
21
22 or both in parallel, as here.
23
24 The GNU MP Library is distributed in the hope that it will be useful, but
25 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
26 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
27 for more details.
28
29 You should have received copies of the GNU General Public License and the
30 GNU Lesser General Public License along with the GNU MP Library. If not,
31 see https://www.gnu.org/licenses/. */
32
33 #include "gmp-impl.h"
34
35 #if OPERATION_sec_add_1
36 #define FNAME mpn_sec_add_1
37 #define FNAME_itch mpn_sec_add_1_itch
38 #define OP_N mpn_add_n
39 #endif
40 #if OPERATION_sec_sub_1
41 #define FNAME mpn_sec_sub_1
42 #define FNAME_itch mpn_sec_sub_1_itch
43 #define OP_N mpn_sub_n
44 #endif
45
46 /* It's annoying to that we need scratch space */
47 mp_size_t
FNAME_itch(mp_size_t n)48 FNAME_itch (mp_size_t n)
49 {
50 return n;
51 }
52
53 mp_limb_t
FNAME(mp_ptr rp,mp_srcptr ap,mp_size_t n,mp_limb_t b,mp_ptr scratch)54 FNAME (mp_ptr rp, mp_srcptr ap, mp_size_t n, mp_limb_t b, mp_ptr scratch)
55 {
56 scratch[0] = b;
57 MPN_ZERO (scratch + 1, n-1);
58 return OP_N (rp, ap, scratch, n);
59 }
60