185 lines
6.1 KiB
C
185 lines
6.1 KiB
C
/* Test mpq_mul_2exp and mpq_div_2exp.
|
|
|
|
Copyright 2000, 2001 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU MP Library.
|
|
|
|
The GNU MP 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 GNU MP 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 MP Library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include "gmp.h"
|
|
#include "gmp-impl.h"
|
|
#include "tests.h"
|
|
|
|
|
|
struct pair_t {
|
|
const char *num;
|
|
const char *den;
|
|
};
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
static const struct {
|
|
struct pair_t left;
|
|
unsigned long n;
|
|
struct pair_t right;
|
|
|
|
} data[] = {
|
|
{ {"0","1"}, 0, {"0","1"} },
|
|
{ {"0","1"}, 1, {"0","1"} },
|
|
{ {"0","1"}, 2, {"0","1"} },
|
|
|
|
{ {"1","1"}, 0, {"1","1"} },
|
|
{ {"1","1"}, 1, {"2","1"} },
|
|
{ {"1","1"}, 2, {"4","1"} },
|
|
{ {"1","1"}, 3, {"8","1"} },
|
|
|
|
{ {"1","1"}, 31, {"0x80000000","1"} },
|
|
{ {"1","1"}, 32, {"0x100000000","1"} },
|
|
{ {"1","1"}, 33, {"0x200000000","1"} },
|
|
{ {"1","1"}, 63, {"0x8000000000000000","1"} },
|
|
{ {"1","1"}, 64, {"0x10000000000000000","1"} },
|
|
{ {"1","1"}, 65, {"0x20000000000000000","1"} },
|
|
{ {"1","1"}, 95, {"0x800000000000000000000000","1"} },
|
|
{ {"1","1"}, 96, {"0x1000000000000000000000000","1"} },
|
|
{ {"1","1"}, 97, {"0x2000000000000000000000000","1"} },
|
|
{ {"1","1"}, 127, {"0x80000000000000000000000000000000","1"} },
|
|
{ {"1","1"}, 128, {"0x100000000000000000000000000000000","1"} },
|
|
{ {"1","1"}, 129, {"0x200000000000000000000000000000000","1"} },
|
|
|
|
{ {"1","2"}, 31, {"0x40000000","1"} },
|
|
{ {"1","2"}, 32, {"0x80000000","1"} },
|
|
{ {"1","2"}, 33, {"0x100000000","1"} },
|
|
{ {"1","2"}, 63, {"0x4000000000000000","1"} },
|
|
{ {"1","2"}, 64, {"0x8000000000000000","1"} },
|
|
{ {"1","2"}, 65, {"0x10000000000000000","1"} },
|
|
{ {"1","2"}, 95, {"0x400000000000000000000000","1"} },
|
|
{ {"1","2"}, 96, {"0x800000000000000000000000","1"} },
|
|
{ {"1","2"}, 97, {"0x1000000000000000000000000","1"} },
|
|
{ {"1","2"}, 127, {"0x40000000000000000000000000000000","1"} },
|
|
{ {"1","2"}, 128, {"0x80000000000000000000000000000000","1"} },
|
|
{ {"1","2"}, 129, {"0x100000000000000000000000000000000","1"} },
|
|
|
|
{ {"1","0x80000000"}, 30, {"1","2"} },
|
|
{ {"1","0x80000000"}, 31, {"1","1"} },
|
|
{ {"1","0x80000000"}, 32, {"2","1"} },
|
|
{ {"1","0x80000000"}, 33, {"4","1"} },
|
|
{ {"1","0x80000000"}, 62, {"0x80000000","1"} },
|
|
{ {"1","0x80000000"}, 63, {"0x100000000","1"} },
|
|
{ {"1","0x80000000"}, 64, {"0x200000000","1"} },
|
|
{ {"1","0x80000000"}, 94, {"0x8000000000000000","1"} },
|
|
{ {"1","0x80000000"}, 95, {"0x10000000000000000","1"} },
|
|
{ {"1","0x80000000"}, 96, {"0x20000000000000000","1"} },
|
|
{ {"1","0x80000000"}, 126, {"0x800000000000000000000000","1"} },
|
|
{ {"1","0x80000000"}, 127, {"0x1000000000000000000000000","1"} },
|
|
{ {"1","0x80000000"}, 128, {"0x2000000000000000000000000","1"} },
|
|
|
|
{ {"1","0x100000000"}, 1, {"1","0x80000000"} },
|
|
{ {"1","0x100000000"}, 2, {"1","0x40000000"} },
|
|
{ {"1","0x100000000"}, 3, {"1","0x20000000"} },
|
|
|
|
{ {"1","0x10000000000000000"}, 1, {"1","0x8000000000000000"} },
|
|
{ {"1","0x10000000000000000"}, 2, {"1","0x4000000000000000"} },
|
|
{ {"1","0x10000000000000000"}, 3, {"1","0x2000000000000000"} },
|
|
};
|
|
|
|
void (*fun) _PROTO ((mpq_ptr, mpq_srcptr, unsigned long));
|
|
const struct pair_t *p_start, *p_want;
|
|
const char *name;
|
|
mpq_t sep, got, want;
|
|
mpq_ptr q;
|
|
int i, muldiv, sign, overlap;
|
|
|
|
tests_start ();
|
|
|
|
mpq_init (sep);
|
|
mpq_init (got);
|
|
mpq_init (want);
|
|
|
|
for (i = 0; i < numberof (data); i++)
|
|
{
|
|
for (muldiv = 0; muldiv < 2; muldiv++)
|
|
{
|
|
if (muldiv == 0)
|
|
{
|
|
fun = mpq_mul_2exp;
|
|
name = "mpq_mul_2exp";
|
|
p_start = &data[i].left;
|
|
p_want = &data[i].right;
|
|
}
|
|
else
|
|
{
|
|
fun = mpq_div_2exp;
|
|
name = "mpq_div_2exp";
|
|
p_start = &data[i].right;
|
|
p_want = &data[i].left;
|
|
}
|
|
|
|
for (sign = 0; sign <= 1; sign++)
|
|
{
|
|
mpz_set_str_or_abort (mpq_numref(want), p_want->num, 0);
|
|
mpz_set_str_or_abort (mpq_denref(want), p_want->den, 0);
|
|
if (sign)
|
|
mpq_neg (want, want);
|
|
|
|
for (overlap = 0; overlap <= 1; overlap++)
|
|
{
|
|
q = overlap ? got : sep;
|
|
|
|
/* initial garbage in "got" */
|
|
mpq_set_ui (got, 123L, 456L);
|
|
|
|
mpz_set_str_or_abort (mpq_numref(q), p_start->num, 0);
|
|
mpz_set_str_or_abort (mpq_denref(q), p_start->den, 0);
|
|
if (sign)
|
|
mpq_neg (q, q);
|
|
|
|
(*fun) (got, q, data[i].n);
|
|
MPQ_CHECK_FORMAT (got);
|
|
|
|
if (! mpq_equal (got, want))
|
|
{
|
|
printf ("%s wrong at data[%d], sign %d, overlap %d\n",
|
|
name, i, sign, overlap);
|
|
printf (" num \"%s\"\n", p_start->num);
|
|
printf (" den \"%s\"\n", p_start->den);
|
|
printf (" n %lu\n", data[i].n);
|
|
|
|
printf (" got ");
|
|
mpq_out_str (stdout, 16, got);
|
|
printf (" (hex)\n");
|
|
|
|
printf (" want ");
|
|
mpq_out_str (stdout, 16, want);
|
|
printf (" (hex)\n");
|
|
|
|
abort ();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
mpq_clear (sep);
|
|
mpq_clear (got);
|
|
mpq_clear (want);
|
|
|
|
tests_end ();
|
|
exit (0);
|
|
}
|