/* Test mpf_get_str and mpf_set_str.
Copyright 1996 , 2000 , 2001 , 2008 , 2019 , 2020 Free Software Foundation , Inc .
This file is part of the GNU MP Library test suite .
The GNU MP Library test suite 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 3 of the License ,
or ( at your option ) any later version .
The GNU MP Library test suite 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
the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* for strlen */
#include "gmp-impl.h"
#include "tests.h"
#ifndef SIZE
#define SIZE
10
#endif
#ifndef EXPO
#define EXPO
200
#endif
int
main (
int argc,
char **argv)
{
mpf_t x, y;
int reps =
20000 ;
int i;
mp_size_t bprec =
100 ;
mpf_t d, rerr, max_rerr, limit_rerr;
char *str;
mp_exp_t bexp;
long size, exp;
int base;
char buf[SIZE * GMP_LIMB_BITS +
5 ];
tests_start ();
if (argc >
1 )
{
reps = strtol (argv[
1 ],
0 ,
0 );
if (argc >
2 )
bprec = strtol (argv[
2 ],
0 ,
0 );
}
mpf_set_default_prec (bprec);
mpf_init_set_ui (limit_rerr,
1 );
mpf_div_2exp (limit_rerr, limit_rerr, bprec);
#if VERBOSE
mpf_dump (limit_rerr);
#endif
mpf_init (rerr);
mpf_init_set_ui (max_rerr,
0 );
mpf_init (x);
mpf_init (y);
mpf_init (d);
/* First test some specific values. */
mpf_set_str (y,
"1.23456" ,
0 );
mpf_set_str (x,
"1.23456" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"00000000000000000000000000000000000000001.23456" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"0.000000000000000000000000000000000000000123456e40" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
".000000000000000000000000000000000000000123456e40" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"00000000000000000000.00000000000000000000123456e21" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (y,
"1.23456e1000" ,
0 );
mpf_set_str (x,
"1.23456e1000" ,
10 );
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"1.23456e+1000" ,
0 );
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"1.23456e+1000" ,
10 );
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"00000000000000000000000000000000000000001.23456e+1000" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"0.000000000000000000000000000000000000000123456e+1040" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
".000000000000000000000000000000000000000123456e+1040" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"00000000000000000000.00000000000000000000123456e+1021" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (y,
"1.23456" ,
16 );
mpf_set_str (x,
"00000000000000000000000000000000000000001.23456" ,
16 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"0.000000000000000000000000000000000000000123456@28" ,
16 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
".000000000000000000000000000000000000000123456@28" ,
16 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"00000000000000000000.00000000000000000000123456@15" ,
16 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (y,
" 0" ,
10 );
mpf_set_str (x,
"00000000000000000000000000000000000000000000000000000" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"0000000000000000000000000000000000000000000000000000." ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"000000000000000000000000000000000000000000000000000.0" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
".0000000000000000000000000000000000000000000000000000" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"0.000000000000000000000000000000000000000000000000000" ,
10 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"00000000000000000000000000000000000000000000000000000" ,
16 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"0000000000000000000000000000000000000000000000000000." ,
16 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"000000000000000000000000000000000000000000000000000.0" ,
16 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
".0000000000000000000000000000000000000000000000000000" ,
16 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"0.000000000000000000000000000000000000000000000000000" ,
16 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"+00000000000000000000000000000000000000000000000000000e-345" ,
9 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"-0000000000000000000000000000000000000000000000000000.@AB" ,
26 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"000000000000000000000000000000000000000000000000000.0@78" ,
19 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"+.0000000000000000000000000000000000000000000000000000e555" ,
6 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
mpf_set_str (x,
"-0.000000000000000000000000000000000000000000000000000@-AAAAAAAAAAAAAAAAAAAAAAAA" ,
17 );
MPF_CHECK_FORMAT (x);
if (mpf_cmp (x, y) !=
0 )
abort ();
/* Now test random values. */
for (i =
0 ; i < reps; i++)
{
if (i ==
0 )
{
/* exercise the special case in get_str for for x==0 */
mpf_set_ui (x,
0 L);
base =
0 ;
}
else
{
size = urandom () % (
2 * SIZE) - SIZE;
exp = urandom () % EXPO;
mpf_random2 (x, size, exp);
base = urandom () %
62 ;
base += base >
0 ;
}
str = mpf_get_str (
0 , &bexp, base,
0 , x);
if (str[
0 ] ==
'-' )
sprintf (buf,
"-0.%s@%ld" , str +
1 , bexp);
else
sprintf (buf,
"0.%s@%ld" , str, bexp);
mpf_set_str_or_abort (y, buf, -base);
(*__gmp_free_func) (str, strlen (str) +
1 );
mpf_reldiff (rerr, x, y);
if (mpf_cmp (rerr, max_rerr) >
0 )
{
mpf_set (max_rerr, rerr);
#if VERBOSE
mpf_dump (max_rerr);
#endif
if (mpf_cmp (rerr, limit_rerr) >
0 )
{
printf (
"ERROR after %d tests\n" , i);
printf (
"base = %d\n" , base);
printf (
" x = " ); mpf_dump (x);
printf (
" y = " ); mpf_dump (y);
abort ();
}
}
}
mpf_clear (limit_rerr);
mpf_clear (rerr);
mpf_clear (max_rerr);
mpf_clear (x);
mpf_clear (y);
mpf_clear (d);
tests_end ();
exit (
0 );
}
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