Hi,
On 10/11/2013 07:46 PM, Jason Merrill wrote:
How does a TEMPLATE_PARM_INDEX get this far? It should have been
detected as dependent before this.
Thanks. Interesting. We get there from the convert_nontype_argument call
at line 6453 of pt.c (in convert_template_argument) , which is protected by:
else if (!dependent_template_arg_p (orig_arg)
&& !uses_template_parms (t))
thus dependent_template_arg_p (orig_arg) returns *false* for that tree.
This is trivially the case because dependent_template_arg_p begins:
if (!processing_template_decl)
return false;
thus it doesn't go that far when processing_template_decl is 0.
Otherwise it would return true.
Is this information already useful to you? Are we maybe failing to bump
processing_template_decl somewhere while processing the specialization?
Thanks!
Paolo.
