[Bug 19429] WideCharToMultiByte: Incorrect conversion of "default character"

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=19429





--- Comment #2 from Takahiro Watanabe <dee at bowfive.oag.co.jp>  2009-07-24 00:08:46 ---
I guess ... (sorry I only have checked this by viewing the source, not on the
running code):

is_valid_dbcs_mapping() in libs/wine/wctomb.c:

There is a condition expression checking for default chars;

  if (ch == table->info.def_char && wch != table->info.def_unicode_char) return
0;


table->info.def_char becomes '?' (0x3f) and table->info.def_unicode_char is
U+30FB, as described in 'struct dbcs_table cptable_932' in libs/wine/c_932.c .

So if ch='?' and wch=L'?' (both numerically are 0x3f), this function returns
zero, indicating that the DBCS mapping is invalid.

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