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46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
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/* comparisons.c -- Comparison functions.
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Copyright (C) 2008, 2009, 2011 INRIA
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This file is part of GNU MPC.
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GNU MPC is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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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 this program. If not, see http://www.gnu.org/licenses/ .
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*/
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#include "mpc-tests.h"
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/* comparisons, see description in mpc-tests.h */
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int
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same_mpfr_value (mpfr_ptr got, mpfr_ptr ref, int known_sign)
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{
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/* The sign of zeroes and infinities is checked only when
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known_sign is true. */
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if (mpfr_nan_p (got))
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return mpfr_nan_p (ref);
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if (mpfr_inf_p (got))
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return mpfr_inf_p (ref) &&
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(!known_sign || mpfr_signbit (got) == mpfr_signbit (ref));
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if (mpfr_zero_p (got))
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return mpfr_zero_p (ref) &&
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(!known_sign || mpfr_signbit (got) == mpfr_signbit (ref));
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return mpfr_cmp (got, ref) == 0;
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}
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int
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same_mpc_value (mpc_ptr got, mpc_ptr ref, known_signs_t known_signs)
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{
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return same_mpfr_value (mpc_realref (got), mpc_realref (ref), known_signs.re)
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&& same_mpfr_value (mpc_imagref (got), mpc_imagref (ref), known_signs.im);
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}
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