[Bug c++/54377] Consider default arguments in "wrong number of template arguments" diagnostic

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54377

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-04-19
                 CC|                            |manu at gcc dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #1 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2013-04-19 16:32:56 UTC ---
Or say:

test.cpp: In function 'int main()':
test.cpp:6:12: error: wrong number of template arguments (1, should be at least
2)
     foo<int> f;
     ^
test.cpp:2:8: note: provided for 'template<class, class, class=void,
class=void> struct foo'
 struct foo {};
        ^

that is, make the second message a note, mention the minimum, fix the location
to point to foo, show the default arguments in the declaration.

I would guess that counting how many are non-default is easier, but someone
will have to provide a patch.