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/* tis_empty.c -- Test mpfi_is_empty.
Copyright 2009, 2010,
Spaces project, Inria Lorraine
and Salsa project, INRIA Rocquencourt,
and Arenaire project, Inria Rhone-Alpes, France
and Lab. ANO, USTL (Univ. of Lille), France
This file is part of the MPFI Library.
The MPFI 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 2.1 of the License, or (at your
option) any later version.
The MPFI 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 MPFI Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "mpfi-tests.h"
int
main (int argc, char **argv)
{
mp_prec_t prec_min = 2;
mp_prec_t prec_max = 1000;
mp_prec_t prec;
int step = 10;
mpfi_t i;
test_start ();
mpfi_init2 (i, 1024);
for (prec = prec_min; prec <= prec_max; prec += step) {
mpfi_set_prec (i, prec);
random_interval (i);
if (mpfi_is_empty (i)) {
printf ("Error: mpfi_is_empty claims that the interval I = ");
mpfi_out_str (stdout, 10, 0, i);
printf (" is empty.\n");
exit (1);
}
mpfr_swap (&(i->left), &(i->right));
if (!mpfi_is_empty (i) && !mpfr_equal_p (&(i->left), &(i->right))) {
printf ("Error: mpfi_is_empty claims that the interval I = ");
mpfi_out_str (stdout, 10, 0, i);
printf (" is not empty.\n");
exit (1);
}
}
mpfi_clear (i);
test_end ();
return 0;
}
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