/src/gmp-6.2.1/mpz/ui_pow_ui.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* mpz_ui_pow_ui -- ulong raised to ulong. |
2 | | |
3 | | Copyright 2001, 2002 Free Software Foundation, Inc. |
4 | | |
5 | | This file is part of the GNU MP Library. |
6 | | |
7 | | The GNU MP Library is free software; you can redistribute it and/or modify |
8 | | it under the terms of either: |
9 | | |
10 | | * the GNU Lesser General Public License as published by the Free |
11 | | Software Foundation; either version 3 of the License, or (at your |
12 | | option) any later version. |
13 | | |
14 | | or |
15 | | |
16 | | * the GNU General Public License as published by the Free Software |
17 | | Foundation; either version 2 of the License, or (at your option) any |
18 | | later version. |
19 | | |
20 | | or both in parallel, as here. |
21 | | |
22 | | The GNU MP Library is distributed in the hope that it will be useful, but |
23 | | WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
24 | | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
25 | | for more details. |
26 | | |
27 | | You should have received copies of the GNU General Public License and the |
28 | | GNU Lesser General Public License along with the GNU MP Library. If not, |
29 | | see https://www.gnu.org/licenses/. */ |
30 | | |
31 | | #include "gmp-impl.h" |
32 | | |
33 | | |
34 | | void |
35 | | mpz_ui_pow_ui (mpz_ptr r, unsigned long b, unsigned long e) |
36 | 0 | { |
37 | | #if GMP_NAIL_BITS != 0 |
38 | | if (b > GMP_NUMB_MAX) |
39 | | { |
40 | | mp_limb_t bb[2]; |
41 | | bb[0] = b & GMP_NUMB_MASK; |
42 | | bb[1] = b >> GMP_NUMB_BITS; |
43 | | mpz_n_pow_ui (r, bb, (mp_size_t) 2, e); |
44 | | } |
45 | | else |
46 | | #endif |
47 | 0 | { |
48 | | #ifdef _LONG_LONG_LIMB |
49 | | /* i386 gcc 2.95.3 doesn't recognise blimb can be eliminated when |
50 | | mp_limb_t is an unsigned long, so only use a separate blimb when |
51 | | necessary. */ |
52 | | mp_limb_t blimb = b; |
53 | | mpz_n_pow_ui (r, &blimb, (mp_size_t) (b != 0), e); |
54 | | #else |
55 | 0 | mpz_n_pow_ui (r, &b, (mp_size_t) (b != 0), e); |
56 | 0 | #endif |
57 | 0 | } |
58 | 0 | } |