1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* mpz_ui_pow_ui -- ulong raised to ulong.
Copyright 2001, 2002 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
The GNU MP Library 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the GNU MP Library. If not, see https://www.gnu.org/licenses/. */
#include "gmp.h"
#include "gmp-impl.h"
void
mpz_ui_pow_ui (mpz_ptr r, unsigned long b, unsigned long e)
{
#if GMP_NAIL_BITS != 0
if (b > GMP_NUMB_MAX)
{
mp_limb_t bb[2];
bb[0] = b & GMP_NUMB_MASK;
bb[1] = b >> GMP_NUMB_BITS;
mpz_n_pow_ui (r, bb, (mp_size_t) 2, e);
}
else
#endif
{
#ifdef _LONG_LONG_LIMB
/* i386 gcc 2.95.3 doesn't recognise blimb can be eliminated when
mp_limb_t is an unsigned long, so only use a separate blimb when
necessary. */
mp_limb_t blimb = b;
mpz_n_pow_ui (r, &blimb, (mp_size_t) (b != 0), e);
#else
mpz_n_pow_ui (r, &b, (mp_size_t) (b != 0), e);
#endif
}
}
|