In the example accompanying this patch, check_instantiated_arg tries
to ensure that a non-type template argument should be a constant if it
has integral or enumeration type.
The problem is that an alias template which type-id is, e.g, an
integer, looks like an argument that has integral/enumeration type:
its TREE_TYPE is an integer type. So check_instantiated_arg
mistenkaly barks that this integral non-type argument is not a
constant.
Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk.
gcc/cp/
PR c++/52343
* pt.c (check_instantiated_arg): Allow type template arguments.
gcc/testsuite/
PR c++/52343
* g++.dg/cpp0x/alias-decl-29.C: New test.
From-SVN: r194960
+2013-01-04 Dodji Seketeli <dodji@redhat.com>
+
+ PR c++/52343
+ * pt.c (check_instantiated_arg): Allow type template arguments.
+
2013-01-04 Jason Merrill <jason@redhat.com>
PR c++/55877
return true;
}
}
+ /* Class template and alias template arguments should be OK. */
+ else if (DECL_TYPE_TEMPLATE_P (t))
+ ;
/* A non-type argument of integral or enumerated type must be a
constant. */
else if (TREE_TYPE (t)
+2013-01-04 Dodji Seketeli <dodji@redhat.com>
+
+ PR c++/52343
+ * g++.dg/cpp0x/alias-decl-29.C: New test.
+
2013-01-06 Paul Thomas <pault@gcc.gnu.org>
PR fortran/PR53876
--- /dev/null
+// Origin: PR c++/52343
+// { dg-do compile { target c++11 } }
+
+template<typename>
+using A = int;
+
+template<template<class> class>
+struct B {};
+
+B<A> b;