Returning from a multiple stacked call at once
jak
nospam at please.ty
Tue Dec 15 04:41:24 EST 2020
Il 12/12/2020 18:20, Dieter Maurer ha scritto:
> ast wrote at 2020-12-12 07:39 +0100:
>> In case a function recursively calls itself many times,
>> is there a way to return a data immediately without
>> unstacking all functions ?
>
> Python does not have "long jump"s (out of many functions, many loop
> incarnations).
> In some cases, you can use exceptions to emulate "long jump"s.
>
I don't know what you mean by 'emulating' because using the exception
handler you simply defer unstacking to it. The real problem is that if
you write a function that ends by calling itself and does not take
advantage of the branch of code following the recursive call, then it is
a wrong way to use a recursive function which should be replaced with a
simple one containing a loop where you can insert a break statement
wherever you like. IMHO
Greetings.
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