1/* mpz_ui_pow_ui -- ulong raised to ulong.
2
3Copyright 2001, 2002 Free Software Foundation, Inc.
4
5This file is part of the GNU MP Library.
6
7The GNU MP Library is free software; you can redistribute it and/or modify
8it 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
14or
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
20or both in parallel, as here.
21
22The GNU MP Library is distributed in the hope that it will be useful, but
23WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
24or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
25for more details.
26
27You should have received copies of the GNU General Public License and the
28GNU Lesser General Public License along with the GNU MP Library.  If not,
29see https://www.gnu.org/licenses/.  */
30
31#include "gmp-impl.h"
32
33
34void
35mpz_ui_pow_ui (mpz_ptr r, unsigned long b, unsigned long e)
36{
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    {
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      mpz_n_pow_ui (r, &b,     (mp_size_t) (b != 0), e);
56#endif
57    }
58}
59