Issue 4156: Define Smob<> constructors

[lilypond.git] / lily / include / small-smobs.hh

diff --git a/lily/include/small-smobs.hh b/lily/include/small-smobs.hh
index fa63af9a90057672fb18c86df2c17c55dcad7919..dcff3596a81e9b190fca972dfef33db2f6b8c5c4 100644 (file)
--- a/lily/include/small-smobs.hh
+++ b/lily/include/small-smobs.hh
@@ -24,8 +24,8 @@
 template <class Super>
 class Smob1 : public Smob_base<Super>
 {
-  Smob1 () { } // private constructor: objects don't exist, only
-               // "pointers" to them
+  Smob1 (); // Do not define!  Not constructible!
+  Smob1 (const Smob1 &); // Do not define!  Not copyable!
 public:
   SCM self_scm () const { return SCM_PACK (this); }
   SCM & scm1 () const { return *SCM_SMOB_OBJECT_LOC (self_scm ()); }
@@ -41,8 +41,8 @@ public:
 template <class Super>
 class Smob2 : public Smob_base<Super>
 {
-  Smob2 () { } // private constructor: objects don't exist, only
-               // "pointers" to them
+  Smob2 (); // Do not define!  Not constructible!
+  Smob2 (const Smob2 &); // Do not define!  Not copyable!
 public:
   SCM self_scm () const { return SCM_PACK (this); }
   SCM & scm1 () const { return *SCM_SMOB_OBJECT_LOC (self_scm ()); }
@@ -65,8 +65,8 @@ public:
 template <class Super>
 class Smob3 : public Smob_base<Super>
 {
-  Smob3 () { } // private constructor: objects don't exist, only
-               // "pointers" to them
+  Smob3 (); // Do not define!  Not constructible!
+  Smob3 (const Smob3 &); // Do not define!  Not copyable!
 public:
   SCM self_scm () const { return SCM_PACK (this); }
   SCM & scm1 () const { return *SCM_SMOB_OBJECT_LOC (self_scm ()); }