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/* Test file for mpfr_ai.
Copyright 2010-2018 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
http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include "mpfr-test.h"
#define TEST_FUNCTION mpfr_ai
#define TEST_RANDOM_EMIN -5
#define TEST_RANDOM_EMAX 5
#define REDUCE_EMAX 7 /* this is to avoid that test_generic() calls mpfr_ai
with too large inputs. FIXME: remove this once
mpfr_ai can handle large inputs */
#include "tgeneric.c"
static void
check_large (void)
{
mpfr_t x, y, z;
mpfr_init2 (x, 38);
mpfr_init2 (y, 110);
mpfr_init2 (z, 110);
mpfr_set_str_binary (x, "-1E8");
mpfr_ai (y, x, MPFR_RNDN);
mpfr_set_str_binary (z, "-10001110100001011111110001100011101100011100010000110100100101011111011100000101110101010010000000101110011111E-112");
if (mpfr_equal_p (y, z) == 0)
{
printf ("Error in mpfr_ai for x=-2^8\n");
exit (1);
}
#if 0 /* disabled since mpfr_ai does not currently handle large arguments */
mpfr_set_str_binary (x, "-1E26");
mpfr_ai (y, x, MPFR_RNDN);
mpfr_set_str_binary (z, "-110001111100000011001010010101001101001011001011101011001010100100001110001101101101000010000011001000001011E-118");
if (mpfr_equal_p (y, z) == 0)
{
printf ("Error in mpfr_ai for x=-2^26\n");
exit (1);
}
mpfr_set_str_binary (x, "-0.11111111111111111111111111111111111111E1073741823");
mpfr_ai (y, x, MPFR_RNDN);
/* FIXME: compute the correctly rounded value we should get for Ai(x),
and check we get this value */
#endif
mpfr_clear (x);
mpfr_clear (y);
mpfr_clear (z);
}
static void
check_zero (void)
{
mpfr_t x, y, r;
mpfr_init2 (x, 53);
mpfr_init2 (y, 53);
mpfr_init2 (r, 53);
mpfr_set_str_binary (r, "10110101110001100011110010110001001110001010110111E-51");
mpfr_set_ui (x, 0, MPFR_RNDN);
mpfr_ai (y, x, MPFR_RNDN);
if (mpfr_equal_p (y, r) == 0)
{
printf ("Error in mpfr_ai for x=0\n");
printf ("Expected "); mpfr_dump (r);
printf ("Got "); mpfr_dump (y);
exit (1);
}
mpfr_clear (x);
mpfr_clear (y);
mpfr_clear (r);
}
int
main (int argc, char *argv[])
{
tests_start_mpfr ();
check_large ();
check_zero ();
test_generic (2, 100, 5);
tests_end_mpfr ();
return 0;
}
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