re PR c++/68177 (Lambda capture doesn't work correctly when lambda is used in a pack expansion)

2017-09-13  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/68177
	* g++.dg/cpp0x/lambda/lambda-68177.C: New.

From-SVN: r252732

gcc/testsuite/ChangeLog

+2017-09-13  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/68177
+	* g++.dg/cpp0x/lambda/lambda-68177.C: New.
+
 2017-09-13  Martin Liska  <mliska@suse.cz>
 
 	PR middle-end/82154

gcc/testsuite/g++.dg/cpp0x/lambda/lambda-68177.C

+// { dg-do compile { target c++11 } }
+
+void swallow(...) {}
+template<int... Is>
+void foo() {
+  int t = 0;
+  swallow(
+   ([&t]{return 0;}(), Is)...
+  );
+}
+
+int main()
+{
+  foo<1, 2>();
+  return 0;
+}