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/*
Copyright 2012-2014, 2016, 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 <assert.h>
#include <limits.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "testutils.h"
#define MAXBITS 400
#define COUNT 2000
#define GMP_LIMB_BITS (sizeof(mp_limb_t) * CHAR_BIT)
#define MAXLIMBS ((MAXBITS + GMP_LIMB_BITS - 1) / GMP_LIMB_BITS)
static void
test_small (void)
{
struct {
const char *input;
const char *decimal;
} data[] = {
{ "183407", "183407" },
{ " 763959", "763959 " },
{ "9 81999", "981999" },
{ "10\t7398 ", "107398" },
{ "-9585 44", "-00958544" },
{ "-0", "0000" },
{ " -000 ", "0" },
{ "0704436", "231710" },
/* Check the case of large number of leading zeros. */
{ "0000000000000000000000000", "0000000000000000000000000" },
{ "000000000000000000000000704436", "000000000000000000000000231710" },
{ " 02503517", "689999" },
{ "0 1312143", "365667" },
{ "-03 274062", "-882738" },
{ "012\t242", "005282" },
{ "0b11010111110010001111", "883855" },
{ " 0b11001010010100001", "103585" },
{ "-0b101010110011101111", "-175343" },
{ "0b 1111111011011100110", "521958" },
{ "0b1 1111110111001000011", "1044035" },
{ " 0x53dfc", "343548" },
{ "0xfA019", "1024025" },
{ "0x 642d1", "410321" },
{ "0x5 8067", "360551" },
{ "-0xd6Be6", "-879590" },
{ "\t0B1110000100000000011", "460803" },
{ "0B\t1111110010010100101", "517285" },
{ "0B1\t010111101101110100", "359284" },
{ "-0B101\t1001101111111001", "-367609" },
{ "0B10001001010111110000", "562672" },
{ "0Xe4B7e", "936830" },
{ "0X1E4bf", "124095" },
{ "-0Xfdb90", "-1039248" },
{ "0X7fc47", "523335" },
{ "0X8167c", "530044" },
/* Some invalid inputs */
{ "", NULL },
{ "0x", NULL },
{ "0b", NULL },
{ "0z", NULL },
{ "-", NULL },
{ "-0x ", NULL },
{ "0|1", NULL },
{ "4+4", NULL },
{ "0ab", NULL },
{ "10x0", NULL },
{ "0xxab", NULL },
{ "ab", NULL },
{ "0%#", NULL },
{ "$foo", NULL },
{ NULL, NULL }
};
unsigned i;
mpz_t a, b;
mpz_init (b);
for (i = 0; data[i].input; i++)
{
int res = mpz_init_set_str (a, data[i].input, 0);
if (data[i].decimal)
{
if (res != 0)
{
fprintf (stderr, "mpz_set_str returned -1, input: %s\n",
data[i].input);
abort ();
}
if (mpz_set_str (b, data[i].decimal, 10) != 0)
{
fprintf (stderr, "mpz_set_str returned -1, decimal input: %s\n",
data[i].input);
abort ();
}
if (mpz_cmp (a, b) != 0)
{
fprintf (stderr, "mpz_set_str failed for input: %s\n",
data[i].input);
dump ("got", a);
dump ("ref", b);
abort ();
}
}
else if (res != -1)
{
fprintf (stderr, "mpz_set_str returned %d, invalid input: %s\n",
res, data[i].input);
abort ();
}
mpz_clear (a);
}
mpz_clear (b);
}
void
testmain (int argc, char **argv)
{
unsigned i;
char *ap;
char *bp;
char *rp;
size_t bn, rn, arn;
mpz_t a, b;
FILE *tmp;
test_small ();
mpz_init (a);
mpz_init (b);
tmp = tmpfile ();
if (!tmp)
fprintf (stderr,
"Failed to create temporary file. Skipping mpz_out_str tests.\n");
if (mpz_out_str (tmp, 63, a) != 0)
{
printf ("mpz_out_str did not return 0 (error) with base > 62\n");
abort ();
}
if (mpz_out_str (tmp, -37, a) != 0)
{
printf ("mpz_out_str did not return 0 (error) with base < -37\n");
abort ();
}
for (i = 0; i < COUNT; i++)
{
int base;
for (base = 0; base <= 62; base += 1 + (base == 0))
{
hex_random_str_op (MAXBITS, (i&1 || base > 36) ? base: -base, &ap, &rp);
if (mpz_set_str (a, ap, 16) != 0)
{
fprintf (stderr, "mpz_set_str failed on input %s\n", ap);
abort ();
}
rn = strlen (rp);
arn = rn - (rp[0] == '-');
bn = mpz_sizeinbase (a, base ? base : 10);
if (bn < arn || bn > (arn + 1))
{
fprintf (stderr, "mpz_sizeinbase failed:\n");
dump ("a", a);
fprintf (stderr, "r = %s\n", rp);
fprintf (stderr, " base %d, correct size %u, got %u\n",
base, (unsigned) arn, (unsigned)bn);
abort ();
}
bp = mpz_get_str (NULL, (i&1 || base > 36) ? base: -base, a);
if (strcmp (bp, rp))
{
fprintf (stderr, "mpz_get_str failed:\n");
dump ("a", a);
fprintf (stderr, "b = %s\n", bp);
fprintf (stderr, " base = %d\n", base);
fprintf (stderr, "r = %s\n", rp);
abort ();
}
/* Just a few tests with file i/o. */
if (tmp && i < 20)
{
size_t tn;
rewind (tmp);
tn = mpz_out_str (tmp, (i&1 || base > 36) ? base: -base, a);
if (tn != rn)
{
fprintf (stderr, "mpz_out_str, bad return value:\n");
dump ("a", a);
fprintf (stderr, "r = %s\n", rp);
fprintf (stderr, " base %d, correct size %u, got %u\n",
base, (unsigned) rn, (unsigned)tn);
abort ();
}
rewind (tmp);
memset (bp, 0, rn);
tn = fread (bp, 1, rn, tmp);
if (tn != rn)
{
fprintf (stderr,
"fread failed, expected %lu bytes, got only %lu.\n",
(unsigned long) rn, (unsigned long) tn);
abort ();
}
if (memcmp (bp, rp, rn) != 0)
{
fprintf (stderr, "mpz_out_str failed:\n");
dump ("a", a);
fprintf (stderr, "b = %s\n", bp);
fprintf (stderr, " base = %d\n", base);
fprintf (stderr, "r = %s\n", rp);
abort ();
}
}
mpz_set_str (b, rp, base);
if (mpz_cmp (a, b))
{
fprintf (stderr, "mpz_set_str failed:\n");
fprintf (stderr, "r = %s\n", rp);
fprintf (stderr, " base = %d\n", base);
fprintf (stderr, "r = %s\n", ap);
fprintf (stderr, " base = 16\n");
dump ("b", b);
dump ("r", a);
abort ();
}
/* Test mpn interface */
if (base && mpz_sgn (a))
{
size_t i;
const char *absr;
mp_limb_t t[MAXLIMBS];
size_t tn = mpz_size (a);
assert (tn <= MAXLIMBS);
mpn_copyi (t, a->_mp_d, tn);
bn = mpn_get_str ((unsigned char *) bp, base, t, tn);
if (bn != arn)
{
fprintf (stderr, "mpn_get_str failed:\n");
fprintf (stderr, "returned length: %lu (bad)\n", (unsigned long) bn);
fprintf (stderr, "expected: %lu\n", (unsigned long) arn);
fprintf (stderr, " base = %d\n", base);
fprintf (stderr, "r = %s\n", ap);
fprintf (stderr, " base = 16\n");
dump ("b", b);
dump ("r", a);
abort ();
}
absr = rp + (rp[0] == '-');
for (i = 0; i < bn; i++)
{
unsigned char digit = absr[i];
char value;
if (digit >= '0' && digit <= '9')
value = digit - '0';
else if (digit >= 'a' && digit <= 'z')
value = digit - 'a' + ((base > 36) ? 36 : 10);
else if (digit >= 'A' && digit <= 'Z')
value = digit - 'A' + 10;
else
{
fprintf (stderr, "Internal error in test.\n");
abort();
}
if (bp[i] != value)
{
fprintf (stderr, "mpn_get_str failed:\n");
fprintf (stderr, "digit %lu: %d (bad)\n", (unsigned long) i, bp[i]);
fprintf (stderr, "expected: %d\n", value);
fprintf (stderr, " base = %d\n", base);
fprintf (stderr, "r = %s\n", ap);
fprintf (stderr, " base = 16\n");
dump ("b", b);
dump ("r", a);
abort ();
}
}
tn = mpn_set_str (t, (unsigned char *) bp, bn, base);
if (tn != mpz_size (a) || mpn_cmp (t, a->_mp_d, tn))
{
fprintf (stderr, "mpn_set_str failed:\n");
fprintf (stderr, "r = %s\n", rp);
fprintf (stderr, " base = %d\n", base);
fprintf (stderr, "r = %s\n", ap);
fprintf (stderr, " base = 16\n");
dump ("r", a);
abort ();
}
}
free (ap);
free (rp);
testfree (bp);
}
}
mpz_clear (a);
mpz_clear (b);
}
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