none.hpp

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// 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.

#ifndef __STOUT_NONE_HPP__
#define __STOUT_NONE_HPP__

// A useful type that can be used to represent an Option or Result.
//
// Examples:
//
//   Result<int> result = None();
//   Option<std::string> = None();
//
//   void foo(Option<int> o = None()) {}
//
//   foo(None());

struct None {};

#endif // __STOUT_NONE_HPP__