Test: Address sanitizer: container-overflow

Reproduce on msvc 2022 with address sanitizer on

Author: aleck099

tests/0034.string/container-overflow.cpp

@@ -0,0 +1,26 @@
+/*
+ * Compile on msvc 2022 with address sanitizer on
+ * Produces container-overflow
+ */
+#include <string>
+#include <fast_io.h>
+
+using namespace fast_io::io;
+
+void print_all() {
+    using namespace fast_io::mnp;
+    std::u16string full_name;
+    {
+        fast_io::u16ostring_ref o1(&full_name);
+        for (std::u16string_view f : { u"", u"benchmark", u"0001.refterm" }) {
+            if (!full_name.empty())
+                print(o1, u"/");
+            print(o1, f);
+        }
+    }
+    perrln(code_cvt(full_name));
+}
+
+int main() {
+    print_all();
+}