string/bug-strcoll2.c

   1 /* Bug 18589: sort-test.sh fails at random.
   2    Copyright (C) 2015-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <stdio.h>
  20 #include <string.h>
  21 #include <locale.h>
  22
  23 /* An incorrect strcoll optimization resulted in incorrect
  24    results from strcoll for cs_CZ and da_DK.  */
  25
  26 int
  27 test_cs_CZ (void)
  28 {
  29   const char t1[] = "config";
  30   const char t2[] = "choose";
  31   if (setlocale (LC_ALL, "cs_CZ.UTF-8") == NULL)
  32     {
  33       perror ("setlocale");
  34       return 1;
  35     }
  36   /* In Czech the digraph ch sorts after c, therefore we expect
  37      config to sort before choose.  */
  38   int a = strcoll (t1, t2);
  39   int b = strcoll (t2, t1);
  40   printf ("strcoll (\"%s\", \"%s\") = %d\n", t1, t2, a);
  41   printf ("strcoll (\"%s\", \"%s\") = %d\n", t2, t1, b);
  42   if (a < 0 && b > 0)
  43     {
  44       puts ("PASS: config < choose");
  45       return 0;
  46     }
  47   else
  48     {
  49       puts ("FAIL: Wrong sorting in cs_CZ.UTF-8.");
  50       return 1;
  51     }
  52 }
  53
  54 int
  55 test_da_DK (void)
  56 {
  57   const char t1[] = "AS";
  58   const char t2[] = "AA";
  59   if (setlocale (LC_ALL, "da_DK.ISO-8859-1") == NULL)
  60     {
  61       perror ("setlocale");
  62       return 1;
  63     }
  64   /* AA should be treated as the last letter of the Danish alphabet,
  65      hence sorting after AS.  */
  66   int a = strcoll (t1, t2);
  67   int b = strcoll (t2, t1);
  68   printf ("strcoll (\"%s\", \"%s\") = %d\n", t1, t2, a);
  69   printf ("strcoll (\"%s\", \"%s\") = %d\n", t2, t1, b);
  70   if (a < 0 && b > 0)
  71     {
  72       puts ("PASS: AS < AA");
  73       return 0;
  74     }
  75   else
  76     {
  77       puts ("FAIL: Wrong sorting in da_DK.ISO-8859-1");
  78       return 1;
  79     }
  80 }
  81
  82 int
  83 do_test (void)
  84 {
  85   int err = 0;
  86   err |= test_cs_CZ ();
  87   err |= test_da_DK ();
  88   return err;
  89 }
  90
  91 #include <support/test-driver.c>