相关疑难解决方法(0)

我尝试了Rosettacode的一些例子并遇到了提供的Ackermann示例的问题:当运行它"未修改"时(我用latin-1替换了utf-8变量名),我得到(类似,但现在可复制):

$ perl6 t/ackermann.p6
65533
19729 digits starting with 20035299304068464649790723515602557504478254755697...
Cannot unbox 65536 bit wide bigint into native integer
  in sub A at t/ackermann.p6 line 3
  in sub A at t/ackermann.p6 line 11
  in sub A at t/ackermann.p6 line 3
  in block <unit> at t/ackermann.p6 line 17

删除第3行中的proto声明(通过注释掉):

$ perl6 t/ackermann.p6
65533
19729 digits starting with 20035299304068464649790723515602557504478254755697...
Numeric overflow
  in sub A at t/ackermann.p6 line 8
  in sub A at t/ackermann.p6 line 11
  in block <unit> at t/ackermann.p6 …