135 lines
3.2 KiB
C
135 lines
3.2 KiB
C
/* Test collation function using real data.
|
|
Copyright (C) 1997-2022 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C 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 C 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 C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <ctype.h>
|
|
#include <error.h>
|
|
#include <locale.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
|
|
struct lines
|
|
{
|
|
char *key;
|
|
char *line;
|
|
};
|
|
|
|
static int xstrcoll (const void *, const void *);
|
|
|
|
static int
|
|
signum (int n)
|
|
{
|
|
return (0 < n) - (n < 0);
|
|
}
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
int result = 0;
|
|
size_t nstrings, nstrings_max;
|
|
struct lines *strings;
|
|
char *line = NULL;
|
|
size_t len = 0;
|
|
size_t n;
|
|
|
|
if (argc < 2)
|
|
error (1, 0, "usage: %s <random seed>", argv[0]);
|
|
|
|
setlocale (LC_ALL, "");
|
|
|
|
nstrings_max = 100;
|
|
nstrings = 0;
|
|
strings = (struct lines *) malloc (nstrings_max * sizeof (struct lines));
|
|
if (strings == NULL)
|
|
{
|
|
perror (argv[0]);
|
|
exit (1);
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
int l;
|
|
if (getline (&line, &len, stdin) < 0)
|
|
break;
|
|
|
|
if (nstrings == nstrings_max)
|
|
{
|
|
strings = (struct lines *) realloc (strings,
|
|
(nstrings_max *= 2)
|
|
* sizeof (*strings));
|
|
if (strings == NULL)
|
|
{
|
|
perror (argv[0]);
|
|
exit (1);
|
|
}
|
|
}
|
|
strings[nstrings].line = strdup (line);
|
|
l = strcspn (line, ":(;");
|
|
while (l > 0 && isspace (line[l - 1]))
|
|
--l;
|
|
strings[nstrings].key = strndup (line, l);
|
|
++nstrings;
|
|
}
|
|
free (line);
|
|
|
|
/* First shuffle. */
|
|
srandom (atoi (argv[1]));
|
|
for (n = 0; n < 10 * nstrings; ++n)
|
|
{
|
|
int r1, r2;
|
|
size_t idx1 = random () % nstrings;
|
|
size_t idx2 = random () % nstrings;
|
|
struct lines tmp = strings[idx1];
|
|
strings[idx1] = strings[idx2];
|
|
strings[idx2] = tmp;
|
|
|
|
/* While we are at it a first little test. */
|
|
r1 = strcoll (strings[idx1].key, strings[idx2].key);
|
|
r2 = strcoll (strings[idx2].key, strings[idx1].key);
|
|
|
|
if (signum (r1) != - signum (r2))
|
|
printf ("`%s' and `%s' collate wrong: %d vs. %d\n",
|
|
strings[idx1].key, strings[idx2].key, r1, r2);
|
|
}
|
|
|
|
/* Now sort. */
|
|
qsort (strings, nstrings, sizeof (struct lines), xstrcoll);
|
|
|
|
/* Print the result. */
|
|
for (n = 0; n < nstrings; ++n)
|
|
{
|
|
fputs (strings[n].line, stdout);
|
|
free (strings[n].line);
|
|
free (strings[n].key);
|
|
}
|
|
free (strings);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
static int
|
|
xstrcoll (const void *ptr1, const void *ptr2)
|
|
{
|
|
const struct lines *l1 = (const struct lines *) ptr1;
|
|
const struct lines *l2 = (const struct lines *) ptr2;
|
|
|
|
return strcoll (l1->key, l2->key);
|
|
}
|