1 /* Test collation function using real data.
2 Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
34 static int xstrcoll (const void *, const void *);
37 main (int argc, char *argv[])
40 size_t nstrings, nstrings_max;
41 struct lines *strings;
46 setlocale (LC_ALL, "");
50 strings = (struct lines *) malloc (nstrings_max * sizeof (struct lines));
60 if (getline (&line, &len, stdin) < 0)
63 if (nstrings == nstrings_max)
65 strings = (struct lines *) realloc (strings,
67 * sizeof (*strings)));
74 strings[nstrings].line = strdup (line);
75 l = strcspn (line, ":(;");
76 while (l > 0 && isspace (line[l - 1]))
78 strings[nstrings].key = strndup (line, l);
83 srandom (atoi (argv[1]));
84 for (n = 0; n < 10 * nstrings; ++n)
87 size_t idx1 = random () % nstrings;
88 size_t idx2 = random () % nstrings;
89 struct lines tmp = strings[idx1];
90 strings[idx1] = strings[idx2];
93 /* While we are at it a first little test. */
94 r1 = strcoll (strings[idx1].key, strings[idx2].key);
95 r2 = strcoll (strings[idx2].key, strings[idx1].key);
98 if (r > 0 || (r == 0 && r1 != 0) || (r == 0 && r2 != 0))
99 printf ("`%s' and `%s' collate wrong: %d vs. %d\n",
100 strings[idx1].key, strings[idx2].key, r1, r2);
104 qsort (strings, nstrings, sizeof (struct lines), xstrcoll);
106 /* Print the result. */
107 for (n = 0; n < nstrings; ++n)
108 fputs (strings[n].line, stdout);
115 xstrcoll (ptr1, ptr2)
119 const struct lines *l1 = (const struct lines *) ptr1;
120 const struct lines *l2 = (const struct lines *) ptr2;
122 return strcoll (l1->key, l2->key);