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Date: | Mon, 27 Jul 2009 22:56:34 +0100 |
Message-ID: | <416096c60907271456x5e8cb3f7y64433d542ec6cdcb@mail.gmail.com> |
Subject: | bug in mbrtowc? |
From: | Andy Koppe <andy DOT koppe AT gmail DOT com> |
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I've encountered what looks like a bug in mbrtowc's handling of UTF-8. Here's an example: #include <stdio.h> #include <locale.h> #include <stdlib.h> #include <wchar.h> int main(void) { wchar_t wc; size_t ret; mbstate_t s = { 0 }; puts(setlocale(LC_CTYPE, "en_GB.UTF-8")); printf("%i\n", mbrtowc(&wc, "\xe2", 1, 0)); printf("%i\n", mbrtowc(&wc, "\x94", 1, 0)); printf("%i\n", mbrtowc(&wc, "\x84", 1, 0)); printf("%x\n", wc); return 0; } The sequence E2 94 84 should translate to U+2514. Instead, the second and third calls to mbrtowc report encoding errors. It does work correctly if the three bytes are passed to mbrtowc() in one go: printf("%i\n", mbrtowc(&wc, "\xe2\x94\x84", 3, 0)); Andy -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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