re PR c++/48324 ([C++0x] constexpr evaluation should respect lifetime rules)

2015-03-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/48324
	* g++.dg/cpp0x/constexpr-48324.C: New.

From-SVN: r221539

gcc/testsuite/ChangeLog

 2015-03-20  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	PR c++/48324
+	* g++.dg/cpp0x/constexpr-48324.C: New.
+
+2015-03-20  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	PR c++/48453
 	* g++.dg/cpp0x/pr48453.C: New.
 

gcc/testsuite/g++.dg/cpp0x/constexpr-48324.C

+// PR c++/48324
+// { dg-do compile { target c++11 } }
+
+struct S {
+  const int val;
+  constexpr S(int i) : val(i) { }
+};
+
+constexpr const int& to_ref(int i) {
+  return S(i).val; // { dg-warning "reference to temporary" }
+}
+
+constexpr int ary[to_ref(98)] = { }; // { dg-error "not an integral" }