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Re: e and pi


From: Helmut Eller
Subject: Re: e and pi
Date: Sat, 18 Sep 2010 12:21:02 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

* Eli Zaretskii [2010-09-18 10:01] writes:

>> From: Helmut Eller <address@hidden>
>> Date: Fri, 17 Sep 2010 18:18:25 +0200
>>
>> I once had a function with an argument called system-name.  Suddenly
>> Emacs started to complain that some files are locked by some other user.
>> How many people now that system-name is a global variable and used by
>> the file-locking code?  The lesson is that Emacs should not pre-define
>> global variables with names that are likely candidates for local
>> variables.
>
> What you describe as a big surprise is actually known to every C/C++
> programmer: some names are "reserved by the implementation" and should
> not be used by the application code.

I don't see how that could be relevant here.  C/C++ doesn't use dynamic
scoping; function arguments are statically scoped.  And C++ has
namespaces so it's even less relevant.

Helmut




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