Deleting constructors and assignments

include/scoped_buffer_capture.h

@@ -10,20 +10,26 @@
 class scoped_buffer_capture_t {
 public:
   scoped_buffer_capture_t(std::ostream & stream)
-  : sbuf(stream.rdbuf())
-  , out(stream) {
-    out.rdbuf(buffer.rdbuf());
+  : buffer()
+  , sbuf(stream.rdbuf())
+  , out(&stream) {
+    out->rdbuf(buffer.rdbuf());
   }
   
   ~scoped_buffer_capture_t() {
-    out.rdbuf(sbuf);
+    out->rdbuf(sbuf);
   }
   
+  scoped_buffer_capture_t(scoped_buffer_capture_t const &) = delete;
+  scoped_buffer_capture_t & operator=(scoped_buffer_capture_t const &) = delete;
+  scoped_buffer_capture_t(scoped_buffer_capture_t &&) = delete;
+  scoped_buffer_capture_t & operator=(scoped_buffer_capture_t &&) = delete;
+
   std::string str() const { return buffer.str(); }
 private:
-  std::stringstream buffer{};
+  std::stringstream buffer;
   std::streambuf * sbuf;
-  std::ostream & out;
+  std::ostream * out;
 };
 
 #define capture_stdout() scoped_buffer_capture_t cap_cout(std::cout)