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42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/* Reference rational routines.
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Copyright 2001 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
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#include "gmp.h"
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#include "gmp-impl.h"
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#include "tests.h"
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void
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refmpq_add (mpq_ptr w, mpq_srcptr x, mpq_srcptr y)
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{
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mpz_mul (mpq_numref(w), mpq_numref(x), mpq_denref(y));
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mpz_addmul (mpq_numref(w), mpq_denref(x), mpq_numref(y));
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mpz_mul (mpq_denref(w), mpq_denref(x), mpq_denref(y));
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mpq_canonicalize (w);
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}
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void
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refmpq_sub (mpq_ptr w, mpq_srcptr x, mpq_srcptr y)
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{
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mpz_mul (mpq_numref(w), mpq_numref(x), mpq_denref(y));
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mpz_submul (mpq_numref(w), mpq_denref(x), mpq_numref(y));
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mpz_mul (mpq_denref(w), mpq_denref(x), mpq_denref(y));
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mpq_canonicalize (w);
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}
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