assignment operators/copy ctors are private for classes which can't be copied

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1358 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/thread.h

@@ -81,6 +81,10 @@ public:
 protected:
     friend class wxCondition;
 
+    // no assignment operator nor copy ctor
+    wxMutex(const wxMutex&);
+    wxMutex& operator=(const wxMutex&);
+
     int m_locked;
     wxMutexInternal *p_internal;
 };
@@ -102,6 +106,10 @@ public:
     ~wxMutexLocker() { if ( IsOk() ) m_mutex->Unlock(); }
 
 private:
+    // no assignment operator nor copy ctor
+    wxMutexLocker(const wxMutexLocker&);
+    wxMutexLocker& operator=(const wxMutexLocker&);
+
     bool     m_isOk;
     wxMutex *m_mutex;
 };
@@ -131,6 +139,10 @@ public:
     void Leave();
 
 private:
+    // no assignment operator nor copy ctor
+    wxCriticalSection(const wxCriticalSection&);
+    wxCriticalSection& operator=(const wxCriticalSection&);
+
     wxCriticalSectionInternal *m_critsect;
 };
 
@@ -145,6 +157,10 @@ public:
         { m_critsect.Leave(); }
 
 private:
+    // no assignment operator nor copy ctor
+    wxCriticalSectionLocker(const wxCriticalSectionLocker&);
+    wxCriticalSectionLocker& operator=(const wxCriticalSectionLocker&);
+
     wxCriticalSection& m_critsect;
 };