#include <cstddef>
-#include <utility>
#include <exception>
+#include <functional>
#include <stdexcept>
-
#include <type_traits>
-
-
+#include <utility>
namespace simgrid {
namespace xbt {
-/** A value or an exception
+/** A value or an exception (or nothing)
+ *
+ * This is similar to optional<expected<T>> but it with a Future/Promise
+ * like API.
*
- * The API is similar to the one of future and promise.
+ * Also the name it not so great.
**/
template<class T>
class Result {
