[Bug c++/66937] Do not compare constraints for unconstrained template template parameters

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66937

--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Thu Aug  6 17:42:25 2015
New Revision: 226687

URL: https://gcc.gnu.org/viewcvs?rev=226687&root=gcc&view=rev
Log:
        PR c++/66937
        * pt.c (is_compatible_template_arg): A template template parameter
        with unconstrained parameters can match an argument with
        constrained parameters.

Added:
   
branches/c++-concepts/gcc/testsuite/g++.dg/concepts/template-template-parm1.C
Modified:
    branches/c++-concepts/ChangeLog.concepts
    branches/c++-concepts/gcc/cp/pt.c