1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/cpp1y/constexpr-initlist1.C b/gcc/testsuite/g++.dg/cpp1y/constexpr-initlist1.C
new file mode 100644
index 0000000000..bdef8a101a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/constexpr-initlist1.C
@@ -0,0 +1,22 @@
+// PR c++/64333
+// { dg-do compile { target c++14 } }
+#include <initializer_list>
+
+constexpr int max(std::initializer_list<int> ints)
+{
+        int ret = *(ints.begin());
+        for (int i = 0; i < ints.size(); ++i) {
+                if (*(ints.begin()+i) > ret) {
+                        ret = *(ints.begin()+i);
+                }
+        }
+        return ret;
+}
+
+int main()
+{
+        constexpr int z = max({7,6,5,4,3,2,1});
+        constexpr int z2 = max({5,4,3,2,1});
+        static_assert(z == 7, "");
+        static_assert(z2 == 5, "");
+}