http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50956
--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-11-02
13:15:35 UTC ---
Well, we shouldn't early return error_mark_node, however.
Also, in the specific case at issue here we are still failing to warn, because
we return from build_static_cast_1 pretty early, here:
if (result)
{
result = convert_from_reference (result);
/* [expr.static.cast]
If T is a reference type, the result is an lvalue; otherwise,
the result is an rvalue. */
if (TREE_CODE (type) != REFERENCE_TYPE)
result = rvalue (result);
return result;
}
looks like one more call to check_for_casting_away_constness is missing.
