#ifndef __DALI_TOOLKIT_INTERNAL_BUILDER_OPTIONAL__
#define __DALI_TOOLKIT_INTERNAL_BUILDER_OPTIONAL__
-//
-// Copyright (c) 2014 Samsung Electronics Co., Ltd.
-//
-// Licensed under the Flora License, Version 1.0 (the License);
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://floralicense.org/license/
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an AS IS BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
+/*
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
-// INTERNAL INCLUDES
template <typename T>
struct OptionalTypes
{
typedef const T& ReturnType;
static ReturnType Get(const ValueType& v) { return v; }
static ValueType Set(const ReturnType v) { return v; }
- static bool Ok(const ValueType v) { return true; }
+ static bool Ok(const ValueType& v) { return true; }
};
template <typename T>
return mOk == true ? &OptionalValue::this_type_does_not_support_comparisons : 0;
}
- template <typename OT>
- bool operator!=( const OT& rhs )
- {
- this->this_type_does_not_support_comparisons();
- return false;
- }
-
- template <typename OT>
- bool operator==( const OT& rhs )
- {
- this->this_type_does_not_support_comparisons();
- return false;
- }
-
private:
bool mOk;
ValueType mValue;
void this_type_does_not_support_comparisons() const {}
- // todo operator=() ? use OptionalTypes<T>::Ok(mValue)
};
+template <typename T, typename U>
+bool operator==( const OptionalValue<T>& lhs, const OptionalValue<U>& rhs )
+{
+ lhs.this_type_does_not_support_comparisons();
+ return false;
+}
+
+template <typename T, typename U>
+bool operator!=( const OptionalValue<T>& lhs, const OptionalValue<U>& rhs )
+{
+ lhs.this_type_does_not_support_comparisons();
+ return false;
+}
#endif // header