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/mpq/cmp_si.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 gmp-6.3.0/mpq/cmp_si.c (limited to 'gmp-6.3.0/mpq/cmp_si.c') diff --git a/gmp-6.3.0/mpq/cmp_si.c b/gmp-6.3.0/mpq/cmp_si.c new file mode 100644 index 0000000..faf472c --- /dev/null +++ b/gmp-6.3.0/mpq/cmp_si.c @@ -0,0 +1,60 @@ +/* _mpq_cmp_si -- compare mpq and long/ulong fraction. + +Copyright 2001, 2013, 2014 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 either: + + * 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. + +or + + * the GNU General Public License as published by the Free Software + Foundation; either version 2 of the License, or (at your option) any + later version. + +or both in parallel, as here. + +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 General Public License +for more details. + +You should have received copies of the GNU General Public License and the +GNU Lesser General Public License along with the GNU MP Library. If not, +see https://www.gnu.org/licenses/. */ + +#include "gmp-impl.h" + + +/* Something like mpq_cmpabs_ui would be more useful for the neg/neg case, + and perhaps a version accepting a parameter to reverse the test, to make + it a tail call here. */ + +int +_mpq_cmp_si (mpq_srcptr q, long n, unsigned long d) +{ + /* need canonical sign to get right result */ + ASSERT (SIZ(DEN(q)) > 0); + + if (n >= 0) + return _mpq_cmp_ui (q, n, d); + if (SIZ(NUM(q)) >= 0) + { + return 1; /* >=0 cmp <0 */ + } + else + { + mpq_t qabs; + SIZ(NUM(qabs)) = -SIZ(NUM(q)); + PTR(NUM(qabs)) = PTR(NUM(q)); + SIZ(DEN(qabs)) = SIZ(DEN(q)); + PTR(DEN(qabs)) = PTR(DEN(q)); + + return - _mpq_cmp_ui (qabs, NEG_CAST (unsigned long, n), d); /* <0 cmp <0 */ + } +} -- cgit v1.2.3