Started new reporter, "console", which will replace "basic" when done.

Introduced Option template as part of this.

include/internal/catch_option.hpp

@@ -0,0 +1,64 @@
+/*
+ *  Created by Phil on 02/12/2012.
+ *  Copyright 2012 Two Blue Cubes Ltd. All rights reserved.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef TWOBLUECUBES_CATCH_OPTION_HPP_INCLUDED
+#define TWOBLUECUBES_CATCH_OPTION_HPP_INCLUDED
+
+#include "catch_common.h"
+
+namespace Catch {
+
+    // An optional type
+    template<typename T>
+    class Option {
+    public:
+        Option() : nullableValue( NULL ) {}
+        Option( T const& _value )
+        : nullableValue( new( storage ) T( _value ) )
+        {}
+        Option( Option const& _other )
+        : nullableValue( _other ? new( storage ) T( *_other ) : NULL )
+        {}
+        
+        ~Option() {
+            reset();
+        }
+
+        Option& operator= ( Option const& _other ) {
+            reset();
+            if( _other )
+                nullableValue = new( storage ) T( *_other );
+            return *this;
+        }
+
+        void reset() {
+            if( nullableValue )
+                nullableValue->~T();
+            nullableValue = NULL;
+        }
+        T& operator*() { return *nullableValue; }
+        const T& operator*() const { return *nullableValue; }
+        T* operator->() { return nullableValue; }
+        const T* operator->() const { return nullableValue; }
+
+        bool some() const { return nullableValue != NULL; }
+        bool none() const { return nullableValue == NULL; }
+
+        bool operator !() const { return nullableValue == NULL; }
+        operator SafeBool::type() const {
+            return SafeBool::makeSafe( some() );
+        }
+
+    private:
+        T* nullableValue;
+        char storage[sizeof(T)];
+    };
+
+
+} // end namespace Catch
+
+#endif // TWOBLUECUBES_CATCH_OPTION_HPP_INCLUDED