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4c74403188
Change-Id: Iae65e95cfa0d92091b8b0a424ae36d88efa76aa9 Reviewed-on: https://review.haiku-os.org/c/buildtools/+/3020 Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* _mpq_cmp_si -- compare mpq and long/ulong fraction.
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Copyright 2001, 2013, 2014 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 either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any
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later version.
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or both in parallel, as here.
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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 General Public License
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for more details.
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You should have received copies of the GNU General Public License and the
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GNU Lesser General Public License along with the GNU MP Library. If not,
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see https://www.gnu.org/licenses/. */
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#include "gmp-impl.h"
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/* Something like mpq_cmpabs_ui would be more useful for the neg/neg case,
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and perhaps a version accepting a parameter to reverse the test, to make
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it a tail call here. */
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int
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_mpq_cmp_si (mpq_srcptr q, long n, unsigned long d)
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{
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/* need canonical sign to get right result */
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ASSERT (SIZ(DEN(q)) > 0);
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if (n >= 0)
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return _mpq_cmp_ui (q, n, d);
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if (SIZ(NUM(q)) >= 0)
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{
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return 1; /* >=0 cmp <0 */
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}
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else
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{
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mpq_t qabs;
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SIZ(NUM(qabs)) = -SIZ(NUM(q));
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PTR(NUM(qabs)) = PTR(NUM(q));
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SIZ(DEN(qabs)) = SIZ(DEN(q));
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PTR(DEN(qabs)) = PTR(DEN(q));
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return - _mpq_cmp_ui (qabs, NEG_CAST (unsigned long, n), d); /* <0 cmp <0 */
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}
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}
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