libcc1: delete copy constructor and assignment operators

Change libcc1 to use "= delete" for the copy constructor and
assignment operator, rather than the old approach of private methods
that are nowhere defined.

libcc1

	* rpc.hh (argument_wrapper): Use delete for copy constructor.
	* connection.hh (class connection): Use delete for copy
	constructor.
	* callbacks.hh (class callbacks): Use delete for copy constructor.

1 files changed, 3 insertions, 4 deletions

diff --git a/libcc1/callbacks.hh b/libcc1/callbacks.hh
index b1f3e98..dc470c6 100644
--- a/libcc1/callbacks.hh
+++ b/libcc1/callbacks.hh
@@ -42,6 +42,9 @@ namespace cc1_plugin
     callbacks ();
     ~callbacks ();
 
+    callbacks (const callbacks &) = delete;
+    callbacks &operator= (const callbacks &) = delete;
+
     // Add a callback named NAME.  FUNC is the function to call when
     // this method is invoked.
     void add_callback (const char *name, callback_ftype *func);
@@ -52,10 +55,6 @@ namespace cc1_plugin
 
   private:
 
-    // Declared but not defined to avoid use.
-    callbacks (const callbacks &);
-    callbacks &operator= (const callbacks &);
-
     // The mapping.
     htab_t m_registry;
   };