From: Marek Polacek <polacek@redhat.com>
Date: Tue, 31 Jan 2023 18:27:21 +0000 (-0500)
Subject: c++: Add fixed test [PR102870]
X-Git-Tag: basepoints/gcc-14~1599
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2ec2504af77b35e748067eeb846821d12a6b6b4;p=thirdparty%2Fgcc.git

c++: Add fixed test [PR102870]

This was fixed by r12-7857: now we properly reject instead of
crashing.

	PR c++/102870

gcc/testsuite/ChangeLog:

	* g++.dg/cpp0x/variadic184.C: New test.
---

diff --git a/gcc/testsuite/g++.dg/cpp0x/variadic184.C b/gcc/testsuite/g++.dg/cpp0x/variadic184.C
new file mode 100644
index 000000000000..458357ac5a91
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/variadic184.C
@@ -0,0 +1,12 @@
+// PR c++/102870
+// { dg-do compile { target c++11 } }
+
+template <typename> struct integer_sequence;
+template <typename _Tp, _Tp _Num>
+using make_integer_sequence = integer_sequence<_Tp, __integer_pack(_Num)...>;
+template <long _Num>
+using make_index_sequence = make_integer_sequence<long, _Num>;
+template <class> struct Tuple;
+template <int... Is> using type = Tuple<make_index_sequence<Is>...>;
+template <int... Is> void f() { Tuple<type<Is>>{}; } // { dg-error "parameter packs not expanded" }
+int main() { f(); }