1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ext/case-range3.C b/gcc/testsuite/g++.dg/ext/case-range3.C
new file mode 100644
index 000000000..5a09c12d6
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/case-range3.C
@@ -0,0 +1,23 @@
+// { dg-do compile }
+// Tests if case ranges (a GNU extension) emit errors in ISO mode
+// { dg-options "-pedantic" }
+const int low = -2;
+const int high = 15;
+
+template <typename T>
+T f2 (T i)
+{
+  switch (i)
+  {
+    case low ... high : return i + 1; // { dg-warning "non-standard" }
+    default : return 0;
+  }
+}
+
+int f (int i)
+{
+  switch (i) {
+    case 1 ... 10: return i + 1;      // { dg-warning "non-standard" }
+    default: return f2 (i);           // { dg-message "instantiated" }
+  }
+}