re PR c++/82782 (ICE: nested template alias and specialized template with auto template parameter)

2018-02-05  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/82782
	* g++.dg/cpp1z/inline-var4.C: New.

From-SVN: r257388

gcc/testsuite/ChangeLog

+2018-02-05  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/82782
+	* g++.dg/cpp1z/inline-var4.C: New.
+
 2018-02-05  Martin Liska  <mliska@suse.cz>
 
 	* c-c++-common/asan/pointer-compare-1.c: Adjust ASAN_OPTIONS

gcc/testsuite/g++.dg/cpp1z/inline-var4.C

+// PR c++/82782
+// { dg-options -std=c++17 }
+
+template <const auto& Value>
+struct make_char_sequence;
+
+template <int N, const char (&StringLiteral)[N]>
+struct make_char_sequence<StringLiteral>
+{
+  using type = int;
+};
+
+template <const auto& StringLiteral>
+using make_char_sequence_t = typename make_char_sequence<StringLiteral>::type;
+
+inline constexpr char sample[] = "Sample";
+
+using X = make_char_sequence_t<sample>;