1 /* mpz_tdiv_q -- divide two integers and produce a quotient.
3 Copyright 1991, 1993, 1994, 1996, 2000, 2001, 2005 Free Software Foundation,
6 This file is part of the GNU MP Library.
8 The GNU MP Library is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or (at your
11 option) any later version.
13 The GNU MP Library is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
16 License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
26 mpz_tdiv_q (mpz_ptr quot, mpz_srcptr num, mpz_srcptr den)
29 mp_size_t ns, ds, nl, dl;
30 mp_ptr np, dp, qp, rp;
48 MPZ_REALLOC (quot, ql);
52 rp = (mp_ptr) TMP_ALLOC (dl * BYTES_PER_MP_LIMB);
56 /* FIXME: We should think about how to handle the temporary allocation.
57 Perhaps mpn_tdiv_qr should handle it, since it anyway often needs to
58 allocate temp space. */
60 /* Copy denominator to temporary space if it overlaps with the quotient. */
64 tp = (mp_ptr) TMP_ALLOC (dl * BYTES_PER_MP_LIMB);
65 MPN_COPY (tp, dp, dl);
68 /* Copy numerator to temporary space if it overlaps with the quotient. */
72 tp = (mp_ptr) TMP_ALLOC (nl * BYTES_PER_MP_LIMB);
73 MPN_COPY (tp, np, nl);
77 mpn_tdiv_qr (qp, rp, 0L, np, nl, dp, dl);
79 ql -= qp[ql - 1] == 0;
81 SIZ (quot) = (ns ^ ds) >= 0 ? ql : -ql;