47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* Test of determining the number of multibyte characters in a string.
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Copyright (C) 2007-2025 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2024. */
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#include <config.h>
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#include <string.h>
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#include <locale.h>
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#include "macros.h"
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int
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main ()
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{
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/* configure should already have checked that the locale is supported. */
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if (setlocale (LC_ALL, "") == NULL)
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return 1;
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ASSERT (mbslen ("") == 0);
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ASSERT (mbslen ("Hello") == 5);
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/* The following tests shows how mbslen() is different from strlen(). */
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ASSERT (mbslen ("\303\244\303\266") == 2); /* "äö" */
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ASSERT (mbslen ("7\342\202\254") == 2); /* "7€" */
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ASSERT (mbslen ("\360\237\220\203") == 1); /* "🐃" */
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ASSERT (mbslen ("\303") == 1); /* invalid multibyte sequence */
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ASSERT (mbslen ("\342\202") == 2); /* 2x invalid multibyte sequence */
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ASSERT (mbslen ("\360\237\220") == 3); /* 3x invalid multibyte sequence */
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return test_exit_status;
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}
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