From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001 From: Duncan Wilkie Date: Sat, 18 Nov 2023 06:11:09 -0600 Subject: Initial commit. --- gmp-6.3.0/tests/rand/zdiv_round.c | 43 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 gmp-6.3.0/tests/rand/zdiv_round.c (limited to 'gmp-6.3.0/tests/rand/zdiv_round.c') diff --git a/gmp-6.3.0/tests/rand/zdiv_round.c b/gmp-6.3.0/tests/rand/zdiv_round.c new file mode 100644 index 0000000..e42e694 --- /dev/null +++ b/gmp-6.3.0/tests/rand/zdiv_round.c @@ -0,0 +1,43 @@ +/* zdiv_round() -- divide integers, round to nearest */ + +/* +Copyright 1999 Free Software Foundation, Inc. + +This file is part of the GNU MP Library test suite. + +The GNU MP Library test suite is free software; you can redistribute it +and/or modify it under the terms of the GNU 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 test suite 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 General +Public License for more details. + +You should have received a copy of the GNU General Public License along with +the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */ + + +void +zdiv_round (mpz_t rop, mpz_t n, mpz_t d) +{ + mpf_t f_n, f_d; + + mpf_init (f_n); + mpf_init (f_d); + + mpf_set_z (f_d, d); + mpf_set_z (f_n, n); + + mpf_div (f_n, f_n, f_d); + mpf_set_d (f_d, .5); + if (mpf_sgn (f_n) < 0) + mpf_neg (f_d, f_d); + mpf_add (f_n, f_n, f_d); + mpz_set_f (rop, f_n); + + mpf_clear (f_n); + mpf_clear (f_d); + return; +} -- cgit v1.2.3