refmpq.c
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上传日期:2022-08-06
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文件大小:1k
- /* Reference rational routines.
- Copyright 2001 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 http://www.gnu.org/licenses/. */
- #include "gmp.h"
- #include "gmp-impl.h"
- #include "tests.h"
- void
- refmpq_add (mpq_ptr w, mpq_srcptr x, mpq_srcptr y)
- {
- mpz_mul (mpq_numref(w), mpq_numref(x), mpq_denref(y));
- mpz_addmul (mpq_numref(w), mpq_denref(x), mpq_numref(y));
- mpz_mul (mpq_denref(w), mpq_denref(x), mpq_denref(y));
- mpq_canonicalize (w);
- }
- void
- refmpq_sub (mpq_ptr w, mpq_srcptr x, mpq_srcptr y)
- {
- mpz_mul (mpq_numref(w), mpq_numref(x), mpq_denref(y));
- mpz_submul (mpq_numref(w), mpq_denref(x), mpq_numref(y));
- mpz_mul (mpq_denref(w), mpq_denref(x), mpq_denref(y));
- mpq_canonicalize (w);
- }