arb/fmprb/test/t-trim.c
2013-09-19 00:30:04 +01:00

91 lines
2.5 KiB
C

/*=============================================================================
This file is part of ARB.
ARB is free software; you can redistribute it and/or modify
it under the terms of 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.
ARB 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 a copy of the GNU General Public License
along with ARB; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2013 Fredrik Johansson
******************************************************************************/
#include "fmprb.h"
int main()
{
long iter;
flint_rand_t state;
printf("trim....");
fflush(stdout);
flint_randinit(state);
for (iter = 0; iter < 100000; iter++)
{
fmprb_t x, y;
long acc1, acc2;
int accuracy_ok;
fmprb_init(x);
fmprb_init(y);
fmprb_randtest_special(x, state, 1000, 100);
fmprb_trim(y, x);
if (!fmprb_contains(y, x))
{
printf("FAIL (containment):\n\n");
printf("x = "); fmprb_print(x); printf("\n\n");
printf("y = "); fmprb_print(y); printf("\n\n");
abort();
}
acc1 = fmprb_rel_accuracy_bits(x);
acc2 = fmprb_rel_accuracy_bits(y);
accuracy_ok = (acc1 < 0 && acc2 <= acc1) || (acc2 >= acc1 - 1);
if (!accuracy_ok)
{
printf("FAIL (accuracy):\n\n");
printf("x: %ld, y = %ld\n\n", acc1, acc2);
printf("x = "); fmprb_print(x); printf("\n\n");
printf("y = "); fmprb_print(y); printf("\n\n");
abort();
}
fmprb_trim(x, x);
if (!fmprb_equal(y, x))
{
printf("FAIL (aliasing):\n\n");
printf("x = "); fmprb_print(x); printf("\n\n");
printf("y = "); fmprb_print(y); printf("\n\n");
abort();
}
fmprb_clear(x);
fmprb_clear(y);
}
flint_randclear(state);
flint_cleanup();
printf("PASS\n");
return EXIT_SUCCESS;
}