1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/parse/namespace-definition.C b/gcc/testsuite/g++.dg/parse/namespace-definition.C
new file mode 100644
index 000000000..b7d4034cd
--- /dev/null
+++ b/gcc/testsuite/g++.dg/parse/namespace-definition.C
@@ -0,0 +1,10 @@
+// PR 30891
+// { dg-do compile }
+
+int main() {
+  int i = 0;
+  namespace foo { // { dg-error "'namespace' definition is not allowed here" } 
+    int j = 0;
+  }
+  return 0;
+}