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/* Test file for mpfr_greater_p, mpfr_greaterequal_p, mpfr_less_p,
mpfr_lessequal_p, mpfr_lessgreater_p, mpfr_equal_p, mpfr_unordered_p
functions.
Copyright 2003, 2006-2021 Free Software Foundation, Inc.
Contributed by the AriC and Caramba projects, INRIA.
This file is part of the GNU MPFR Library.
The GNU MPFR 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 MPFR 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 MPFR Library; see the file COPYING.LESSER. If not, see
https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
#include "mpfr-test.h"
static void
cmp_tests (void)
{
mpfr_t x, y;
long i;
mpfr_inits (x, y, (mpfr_ptr) 0);
for (i = 0; i < 80000; i++)
{
mpfr_prec_t precx, precy;
int signx, signy, cmp;
unsigned int cmpbool = 0;
precx = (randlimb () % 17) * 11 + MPFR_PREC_MIN;
precy = (randlimb () % 17) * 11 + MPFR_PREC_MIN;
mpfr_set_prec (x, precx);
mpfr_set_prec (y, precy);
mpfr_urandomb (x, RANDS);
mpfr_urandomb (y, RANDS);
signx = randlimb () & 1;
signy = randlimb () % 256 ? signx : 1 - signx;
/* signy = signx most of the time (most interesting case) */
if (signx)
mpfr_neg (x, x, MPFR_RNDN);
if (signy)
mpfr_neg (y, y, MPFR_RNDN);
if (i <= 1)
mpfr_set_nan (x);
if (i == 0 || i == 2)
mpfr_set_nan (y);
if (mpfr_greater_p (x, y))
cmpbool |= 0x01;
if (mpfr_greaterequal_p (x, y))
cmpbool |= 0x02;
if (mpfr_less_p (x, y))
cmpbool |= 0x04;
if (mpfr_lessequal_p (x, y))
cmpbool |= 0x08;
if (mpfr_lessgreater_p (x, y))
cmpbool |= 0x10;
if (mpfr_equal_p (x, y))
cmpbool |= 0x20;
if (mpfr_unordered_p (x, y))
cmpbool |= 0x40;
if ((i <= 2 && cmpbool != 0x40) ||
(i > 2 && (cmp = mpfr_cmp (x, y),
(cmp == 0 && cmpbool != 0x2a) ||
(cmp < 0 && cmpbool != 0x1c) ||
(cmp > 0 && cmpbool != 0x13))))
{
printf ("Error in cmp_tests for\nx = ");
mpfr_out_str (stdout, 2, 0, x, MPFR_RNDN);
printf (" and\ny = ");
mpfr_out_str (stdout, 2, 0, y, MPFR_RNDN);
printf ("\n");
exit (1);
}
}
mpfr_clears (x, y, (mpfr_ptr) 0);
}
static void
eq_tests (void)
{
mpfr_t x, y;
long i;
mpfr_inits (x, y, (mpfr_ptr) 0);
for (i = 0; i < 20000; i++)
{
mpfr_prec_t precx;
precx = (randlimb () % 17) * 11 + MPFR_PREC_MIN;
mpfr_set_prec (x, precx);
mpfr_set_prec (y, precx + (randlimb () % 64));
mpfr_urandomb (x, RANDS);
if (randlimb () & 1)
mpfr_neg (x, x, MPFR_RNDN);
mpfr_set (y, x, MPFR_RNDN); /* exact -> x = y */
if (mpfr_greater_p (x, y) || !mpfr_greaterequal_p (x, y) ||
mpfr_less_p (x, y) || !mpfr_lessequal_p (x, y) ||
mpfr_lessgreater_p (x, y) || !mpfr_equal_p (x, y) ||
mpfr_unordered_p (x, y))
{
printf ("Error in eq_tests for x = ");
mpfr_out_str (stdout, 2, 0, x, MPFR_RNDN);
printf ("\n");
exit (1);
}
}
mpfr_clears (x, y, (mpfr_ptr) 0);
}
int
main (void)
{
tests_start_mpfr ();
cmp_tests ();
eq_tests ();
tests_end_mpfr ();
return 0;
}
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