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/* Test file for mpfr_sqrt_ui.
Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of the MPFR Library.
The 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 2.1 of the License, or (at your
option) any later version.
The 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 MPFR Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "gmp.h"
#include "mpfr.h"
#include "mpfr-test.h"
void check _PROTO((unsigned long, mp_rnd_t, double));
int maxulp=0;
void
check (unsigned long a, mp_rnd_t rnd_mode, double Q)
{
mpfr_t q;
double Q2;
int u;
mpfr_init2 (q, 53);
mpfr_sqrt_ui (q, a, rnd_mode);
Q2 = mpfr_get_d1 (q);
if (Q != Q2 && !(Isnan(Q) && Isnan(Q2)))
{
u = ulp (Q2,Q);
printf ("mpfr_sqrt_ui failed for a=%lu, rnd_mode=%s\n",
a, mpfr_print_rnd_mode (rnd_mode));
printf ("sqrt gives %1.20e, mpfr_sqrt_ui gives %1.20e (%d ulp)\n",
Q, Q2, u);
exit (1);
}
mpfr_clear (q);
}
double five = 5.0;
int
main (void)
{
tests_start_mpfr ();
check (0, GMP_RNDN, 0.0);
check (2116118, GMP_RNDU, 1.45468828276026215e3);
tests_end_mpfr ();
return 0;
}
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