具有以下示例的包: /* Signal Container */
template <typename Ret> class Signal;
template <typename Ret, typename... Args>
class Signal< Ret (Args...) >
{
/* Following Implementation... */
};
/* Em
如何在Scheme /球拍中定义返回特定区域功能的功能? 目前,我有我的代码如下: (define (get-function n)
(cond
[(= n 1) (lambda (a) a)]
[(= n 2) (lambda (a b) (+ a b))]
[(= n 3) (lambda (a b c) (+ a b c))]
; and s