[Bug c++/19502] duplicate diagnostic for invalid template constant parameter

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-08-24 19:38 -------
This is probably due to the fact that lookup_template_class
is called twice as the comment above the function states:

   ??? Note that this function is currently called *twice* for each
   template-id: the first time from the parser, while creating the
   incomplete type (finish_template_type), and the second type during the
   real instantiation (instantiate_template_class). This is surely something
   that we want to avoid. It also causes some problems with argument
   coercion (see convert_nontype_argument for more information on this).  */


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19502