cf5-opt is configured for windows.

_.cpp is updated for more options.
Also a test is done on implicite copy constructor generation for a derived
class.

test_copy_assignement_override.cpp

@@ -0,0 +1,84 @@
+/* Check cf5-opt.vim defs.
+VIM: let g:lcppflags="-std=c++11 -O2 -pthread"
+VIM-: let g:cppflags=g:Iboost.g:Itbb
+VIM-: let g:ldflags=g:Lboost.g:Ltbb.g:tbbmalloc.g:tbbmproxy
+VIM-: let g:ldlibpath=g:boostld.g:tbbld
+VIM-: let g:cf5output=0
+*/
+
+/*
+ * 	Conclusion:
+ * 		Per C++ standard since Son doesn't have explicitely defined copy
+ * 		assignement operator the an implicite one is generated which call
+ * 		Base::operatro = () as a result overriden operator in the Son is not
+ * 		called.
+ */
+
+#include <iostream>
+#include <exception>
+
+class Base 
+{ 
+public: 
+	int b;
+
+virtual Base &operator=(const Base & o) 
+{ std::cout << "Base" << std::endl; b=o.b; return *this; }; 
+}; 
+
+class Derived : public Base 
+{ 
+public:
+   int d;
+
+virtual Base &operator=(const Base &)
+{ std::cout << "Derived 1" << std::endl; return *this;}; 
+
+virtual Derived &operator=(const Derived &)
+{ std::cout << "Derived 2" << std::endl; return *this;}; 
+}; 
+
+class Son : public Base 
+{ 
+public:
+   int d;
+
+virtual Base &operator=(const Base &)
+{ std::cout << "Son" << std::endl; return *this;}; 
+
+}; 
+
+
+int main ( void )
+{try{
+
+	Derived d1, d2;
+	d1.b = 0;
+	d2.b = 1;
+	d1.d = 0;
+	d2.d = 1;
+	Base * b1 = &d1;
+	Base * b2 = &d2;
+	*b1 = *b2;
+	std::cout << d1.b << d1.d << std::endl;
+
+	d1 = d2;
+	
+	Son s1, s2;
+	s1 = s2;
+
+	return 0;
+}
+catch ( const std::exception& e )
+{
+	std::cerr << std::endl
+			<< "std::exception(\"" << e.what() << "\")." << std::endl;
+	return 2;
+}
+catch ( ... )
+{
+	std::cerr  << std::endl
+			<< "unknown exception." << std::endl;
+	return 1;
+}}
+