additional move support for Nullable and Optional

Foundation/include/Poco/Nullable.h

@@ -82,6 +82,14 @@ public:
 	{
 	}
 
+	Nullable(C&& value):
+		/// Creates a Nullable by moving the given value.
+		_value(value),
+		_isNull(false),
+		_null()
+	{
+	}
+
 	Nullable(const Nullable& other):
 		/// Creates a Nullable by copying another one.
 		_value(other._value),
@@ -112,6 +120,14 @@ public:
 		return *this;
 	}
 
+	Nullable& assign(C&& value)
+		/// Assigns a value to the Nullable.
+	{
+		_value  = value;
+		_isNull = false;
+		return *this;
+	}
+
 	Nullable& assign(const Nullable& other)
 		/// Assigns another Nullable.
 	{
@@ -133,6 +149,12 @@ public:
 		return assign(value);
 	}
 
+	Nullable& operator = (C&& value)
+		/// Move-assigns a value to the Nullable.
+	{
+		return assign(value);
+	}
+
 	Nullable& operator = (const Nullable& other)
 		/// Assigns another Nullable.
 	{

Foundation/include/Poco/Optional.h

@@ -67,6 +67,13 @@ public:
 	{
 	}
 
+	Optional(C&& value):
+		/// Creates a Optional by moving the given value.
+		_value(value),
+		_isSpecified(true)
+	{
+	}
+
 	Optional(const Optional& other):
 		/// Creates a Optional by copying another one.
 		_value(other._value),
@@ -90,7 +97,15 @@ public:
 	Optional& assign(const C& value)
 		/// Assigns a value to the Optional.
 	{
-		_value  = value;
+		_value = value;
+		_isSpecified = true;
+		return *this;
+	}
+
+	Optional& assign(C&& value)
+		/// Moves a value into the Optional.
+	{
+		_value = value;
 		_isSpecified = true;
 		return *this;
 	}
@@ -108,6 +123,11 @@ public:
 		return assign(value);
 	}
 
+	Optional& operator = (C&& value)
+	{
+		return assign(value);
+	}
+
 	Optional& operator = (const Optional& other)
 	{
 		return assign(other);