started to program macros to expand constrated class and function code

test/code/class.cpp

@@ -0,0 +1,30 @@
+
+#include <boost/contract.hpp>
+#include <vector>
+
+template< typename T, class Alloc >
+struct pushable {
+    virtual ~pushable ( ) { }
+    virtual void push_back ( T const& value ) = 0;
+};
+
+BOOST_CONTRACT_CLASS(
+    template( typename T, class Alloc, default std::allocator<T> )
+    class (vector) extends( public (pushable<T, Alloc>) )
+) {
+    BOOST_CONTRACT_CLASS_INVARIANT_TPL()
+
+    BOOST_CONTRACT_FUNCTION_TPL(
+        public void (push_back) ( (T const&) value )
+    ) {
+        vector_.push_back(value);
+    }
+
+private:
+    std::vector<T, Alloc> vector_;
+}
+
+int main ( ) {
+    return 0;
+}
+