cpython本身不支持尾递归优化, 但是一个牛人想出的解决办法:实现一个 tail_call_optimized 装饰器 #!/usr/bin/env python2.4 # This program shows off a python decorator( # which implements tail call optimization. It # does this by throwing an exception if it is # it's own grandparent, and ca...
说python中不能实现optimization of "tail-call elimination,"可是我google中搜索了一下发现了这个 http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/474088 可是由于不太了解functional-programming 所以the optimization of "tail-call elimination" 也不知道确切的意思,所以也不知道下面的代码写的对不对。 ...
一种对TCO的常见误解是：由编译器或运行时系统把尾调用/尾递归实现得很快。这不是TCO真正要强调的事情——不爆栈才是最重要的。也就是说其实重点不在“优化”，而在于“尾调用不爆栈”这个语义保证。“proper tail-call”的叫法远比“tail-call optimization”来得合适。因而像题主说的那种做法，可...
def tail_call_optimized(g): """ This function decorates a function with tail call optimization. It does this by throwing an exception if it is it's own grandparent, and catching such exceptions to fake the tail call optimization. This function fails if the decorated function recurses in a ...
但是最近查资料的时候发现了一种奇特的用decorator来进行尾递归优化的方法 Tail…通过yield可以实现Memory ...
...尾调用优化是如何工作的(理论上) 尾递归函数,如果运行在一个不支持TCO(译者注:TCO==Tail Call Optimization, 即尾调用优化)的环境中,会出现内存随着函数输入的大小而线性增长的情况...在rustc的未来版本中,这样的代码将神奇地变得更快。 2K20 【说站】python尾递归优化如何实现...
cpython本身不支持尾递归优化, 但是一个牛人想出的解决办法:实现一个 tail_call_optimized 装饰器 #!/usr/bin/env python2.4# This program shows off a python decorator(# which implements tail call optimization. It# does this by throwing an exception if it is# it's own grandparent, and catching...
通过实现一个 tail_call_optimized 装饰器,来优化尾递归。 AI检测代码解析 #!/usr/bin/env python2.4 # This program shows off a python decorator( # which implements tail call optimization. It # does this by throwing an exception if it is ...
optimization. It does this by throwing an exception if it is it's own grandparent, and catching such exceptions to fake the tail call optimization. This function fails if the decorated function recurses in a non-tail context. """ def func(*args, **kwargs): ...
Python 递归代替循环语句,函数式编程不依赖循环语句,也不产生跟踪循环状态的开销,而使用相对简单的递归语句。在一些语言中,代码中的递归会在编译阶段被编译器通过尾调用优化(tail call optimization,TCO)技术转换成循环语句。本节简单介绍一些递归用法。 接下来介绍如何通过遍历测试一个数是否为质数。质数是只能被1和本身...