[Bug c++/56658] Silent conversion between 'char' and 'int' even though there are 'signed char' and 'unsigned char' alternatives

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56658

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> 2013-03-20 10:58:22 UTC ---
char is simply subject to integral promotions if there is no exact match,
those come before conversions are considered.  char is _not_ equal to
either unsigned char or signed char!