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

Jakub Jelinek jakub@redhat.com
Fri Sep 19 22:26:00 GMT 2008

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.


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