OK rust made me laugh

C:

Problem → return Solution;

C++:

Problem →

const [auto]&& (Problem&& problem) noexcept(noexcept( Solution<Problem>{}(std::forward<Problem>(problem)) )) { return Solution<Problem>{}(std::forward<Problem>(problem)); } -> decltype( Solution<Problem>{}(std::forward<Problem>(problem)) )

PHP: Problem -> real_solution_for_real_this_time() (real_solution_i_swear() is unsafe and deprecated)