Method is_completed

src/fl/task/promise.h:140–143

Check if Promise is completed (resolved or rejected)

    /// Check if Promise is completed (resolved or rejected)
    bool is_completed() const FL_NOEXCEPT {
        if (!valid()) return false;
        return mImpl->is_completed();
    }

    /// Check if Promise is resolved (completed successfully)
    bool is_resolved() const FL_NOEXCEPT {