1 files changed, 13 insertions, 2 deletions
diff --git a/9p33.cpp b/9p33.cpp
index d99433c..d677d6e 100644
--- a/9p33.cpp
+++ b/9p33.cpp
@@ -1,4 +1,4 @@
-#include <iostream>
+#include <vector>
 
 /*
  *
@@ -9,6 +9,17 @@
 
 int main () {
 
-	
+	/*
+	  Iterator invalid. Undefined behavior.
+	 */
+
+	std::vector<int> v{1, 2, 3, 4, 5};
+
+	auto begin = v.begin();
+	while (begin != v.end()) {
+		++begin;
+		v.insert(begin, 42);
+		++begin;
+	}
 	return 0;
 }