1 /* mpz_divexact_ui -- exact division mpz by ulong.
3 Copyright 2001, 2002 Free Software Foundation, Inc.
5 This file is part of the GNU MP Library.
7 The GNU MP Library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
12 The GNU MP Library is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15 License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
24 mpz_divexact_ui (mpz_ptr dst
, mpz_srcptr src
, unsigned long divisor
)
26 mp_size_t size
, abs_size
;
32 /* For nails don't try to be clever if d is bigger than a limb, just fake
33 up an mpz_t and go to the main mpz_divexact. */
34 if (divisor
> GMP_NUMB_MAX
)
40 mpz_set_ui (dz
, divisor
);
41 mpz_divexact (dst
, src
, dz
);
51 abs_size
= ABS (size
);
53 MPZ_REALLOC (dst
, abs_size
);
56 MPN_DIVREM_OR_DIVEXACT_1 (dst_ptr
, PTR(src
), abs_size
, (mp_limb_t
) divisor
);
57 abs_size
-= (dst_ptr
[abs_size
-1] == 0);
58 SIZ(dst
) = (size
>= 0 ? abs_size
: -abs_size
);