[Bug c++/33208] Broken diagnostic: 'component_ref' not supported by dump_decl

["gdr at cs dot tamu dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #8 from gdr at cs dot tamu dot edu  2007-09-01 21:59 -------
Subject: Re:  Broken diagnostic: 'component_ref' not supported by dump_decl

"pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> writes:

| Another testcase:
| void f(bool *b)
| {
|   (*b)--;
| }
| 
| And another one:
| bool &g(void);
| 
| void f(bool *b)
| {
|   g()--;
| }

Interesting testcase.  This makes me revise my previous opinion to:

  we should not use any of the format specifier at all -- not %qD, not %qE.

| So variable in the error message does not make sense at all.  We want to use
| lvalue instead.

What has this to do with lvalue?  I believe the restriction is that,
it just does not make any sense to decrement a bool -- be it an lvalue
or an rvalue.

Paolo, what about

 error ("invalid use of Boolean expression as operand to %<operator--%>")

?

-- Gaby


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33208