/* Test restarting behaviour of mbrtowc. Copyright (C) 2000-2021 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Bruno Haible <haible@ilog.fr>. 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 <stdio.h> #include <string.h> #include <wchar.h> #include <locale.h> #define show(expr, nexp, wcexp) \ n = expr; \ printf (#expr " -> %zu", n); \ printf (", wc = %lu", (unsigned long int) wc); \ if (n != (size_t) nexp || wc != wcexp) \ { \ printf (", expected %zu and %lu", (size_t) nexp, \ (unsigned long int) wcexp); \ result = 1; \ } \ putc ('\n', stdout) static int do_test (void) { const unsigned char buf[6] = { 0x25, 0xe2, 0x82, 0xac, 0xce, 0xbb }; mbstate_t state; wchar_t wc = 42; size_t n; int result = 0; const char *used_locale; setlocale (LC_CTYPE, "de_DE.UTF-8"); /* Double check. */ used_locale = setlocale (LC_CTYPE, NULL); printf ("used locale: \"%s\"\n", used_locale); result = strcmp (used_locale, "de_DE.UTF-8"); memset (&state, '\0', sizeof (state)); show (mbrtowc (&wc, (const char *) buf + 0, 1, &state), 1, 37); show (mbrtowc (&wc, (const char *) buf + 1, 1, &state), -2, 37); show (mbrtowc (&wc, (const char *) buf + 2, 3, &state), 2, 8364); show (mbrtowc (&wc, (const char *) buf + 4, 1, &state), -2, 8364); show (mbrtowc (&wc, (const char *) buf + 5, 1, &state), 1, 955); show (mbrtowc (&wc, (const char *) buf + 5, 1, &state), -1, 955); return result; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"