| /* Copyright (C) 1999-2018 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <wctype.h> |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| int result = 0; |
| wint_t ch; |
| |
| |
| for (ch = 0; ch < 128; ++ch) |
| { |
| if (iswlower (ch)) |
| { |
| /* Get corresponding upper case character. */ |
| wint_t up = towupper (ch); |
| /* This should have no effect. */ |
| wint_t low = towlower (ch); |
| |
| if ((ch != low) || (up == ch) || (up == low)) |
| { |
| printf ("iswlower/towupper/towlower for character \\%x failed\n", ch); |
| result++; |
| } |
| } |
| if (iswupper (ch)) |
| { |
| /* Get corresponding lower case character. */ |
| wint_t low = towlower (ch); |
| /* This should have no effect. */ |
| wint_t up = towupper (ch); |
| |
| if ((ch != up) || (low == ch) || (up == low)) |
| { |
| printf ("iswupper/towlower/towupper for character \\%x failed\n", ch); |
| result++; |
| } |
| } |
| } |
| |
| /* Finally some specific tests. */ |
| ch = L'A'; |
| if (!iswupper (ch) || iswlower (ch)) |
| { |
| printf ("!iswupper/iswlower (L'A') failed\n"); |
| result++; |
| |
| } |
| ch = L'a'; |
| if (iswupper (ch) || !iswlower (ch)) |
| { |
| printf ("iswupper/!iswlower (L'a') failed\n"); |
| result++; |
| } |
| if (towlower (L'A') != L'a') |
| { |
| printf ("towlower(L'A') failed\n"); |
| result++; |
| } |
| if (towupper (L'a') != L'A') |
| { |
| printf ("towupper(L'a') failed\n"); |
| result++; |
| } |
| |
| if (result == 0) |
| puts ("All test successful!"); |
| return result != 0; |
| } |