Stefan Monnier writes:
>> (define (map f l)
>> (if (pair? l)
>> (cons (f (car l))
>> (map f (cdr l)))
>> '()))
>>
>> whereas we used to have to write code like this in order to support long
>> lists without overflowing the stack:
>>
>> (define (map f l)
>>
Hi Mark!
Do you have any advice to optimize it without disable GC temperaly? Or the
only way is to change a better GC?
2017年6月10日 12:28，"Mark H Weaver" 写道：
> Stefan Monnier writes:
>
> >> (define (map f l)
> >> (if (pair? l)
> >> (cons (f (car l))
> >> (map f (cdr l))
