C/C++ FEs: Do we really need three char_type_nodes?

[Diego Novillo]

On Fri, Sep 19, 2008 at 12:55, Jakub Jelinek <jakub@redhat.com> wrote:
> On Fri, Sep 19, 2008 at 12:36:12PM -0400, Diego Novillo wrote:
>> When we instantiate char_type_node in tree.c:build_common_tree_nodes
>> we very explicitly create a char_type_node that is signed or unsigned
>> based on the value of -funsigned-char, but instead of make
>> char_type_node point to signed_char_type_node or
>> unsigned_char_type_node, we explicitly instantiate a different type.
>
> C++ e.g. requires that char (c) is mangled differently from unsigned char
> (h) and signed char (a), it is a distinct type.

Thanks, that answer my question.


Diego.