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/* tis_inside.c -- Test mpfi_is_inside.
Copyright 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"
#define ORDER(min, max) \
do { \
if (mpfr_cmp ((min), (max)) > 0) \
mpfr_swap ((min), (max)); \
} while (0)
void
print_error (mpfi_srcptr a, mpfi_srcptr b)
{
printf ("Error: mpfi_is_inside (A, B) returns %d\nA = ",
mpfi_is_inside (a, b));
mpfi_out_str (stdout, 10, 0, a);
printf ("\nB = ");
mpfi_out_str (stdout, 10, 0, b);
printf ("\n");
exit (1);
}
void
check ()
{
mpfi_t i1, i2;
mpfr_t a, b, c, d;
int i;
mpfr_init2 (a, 53);
mpfr_init2 (b, 53);
mpfr_init2 (c, 53);
mpfr_init2 (d, 53);
mpfi_init2 (i1, 53);
mpfi_init2 (i2, 53);
for (i = 0; i <= 1000; ++i) {
/* random numbers a < b < c */
random_mpfr (a);
random_mpfr (b);
random_mpfr (c);
random_mpfr (d);
ORDER (a, b);
ORDER (a, c);
ORDER (a, d);
ORDER (b, c);
ORDER (b, d);
ORDER (c, d);
mpfi_interv_fr (i1, a, b);
mpfi_interv_fr (i2, c, d);
if (mpfi_is_inside (i1, i2) && !mpfr_equal_p (b, c)) {
print_error (i1, i2);
}
if (mpfi_is_inside (i2, i1) && !mpfr_equal_p (b, c)) {
print_error (i2, i1);
}
mpfr_set_nan (&(i1->right));
if (mpfi_is_inside (i1, i2)) {
print_error (i1, i2);
}
mpfi_interv_fr (i1, a, c);
mpfi_interv_fr (i2, b, d);
if (mpfi_is_inside (i1, i2) && !mpfr_equal_p (a, b)
&& !mpfr_equal_p (b, c) && !mpfr_equal_p (c, d)) {
print_error (i1, i2);
}
if (mpfi_is_inside (i2, i1) && !mpfr_equal_p (a, b)
&& !mpfr_equal_p (b, c) && !mpfr_equal_p (c, d)) {
print_error (i2, i1);
}
mpfr_set_nan (&(i1->right));
if (mpfi_is_inside (i1, i2)) {
print_error (i1, i2);
}
mpfi_interv_fr (i1, a, d);
mpfi_interv_fr (i2, b, c);
if (!(mpfr_equal_p (a, b) && mpfr_equal_p (c, d))
&& mpfi_is_inside (i1, i2)) {
print_error (i1, i2);
}
if (!mpfi_is_inside (i2, i1)) {
print_error (i2, i1);
}
mpfr_set_nan (&(i1->right));
if (mpfi_is_inside (i2, i1)) {
print_error (i2, i1);
}
}
mpfr_clear (a);
mpfr_clear (b);
mpfr_clear (c);
mpfr_clear (d);
mpfi_clear (i1);
mpfi_clear (i2);
}
int
main (int argc, char **argv)
{
test_start ();
check ();
test_end ();
return 0;
}
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