bug: list-index overloaded

bug: list-index overloaded

[Han-Wen Nienhuys]

Hi,

ice-9/boot.scm defines a list-index (list, elt), which is in conflict
with srfi's list-index (pred list) function.

please fix.

Wouldn't it be a good idea to check ice-9 and the builtins for naming
conflicts with srfi-X functions?

-- 
 Han-Wen Nienhuys - hanwen@xs4all.nl - http://www.xs4all.nl/~hanwen



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Re: bug: list-index overloaded

[Neil Jerram]

Han-Wen Nienhuys <hanwen@xs4all.nl> writes:

> Hi,
>
> ice-9/boot.scm defines a list-index (list, elt), which is in conflict
> with srfi's list-index (pred list) function.

Why is that a problem?

Regards,
     Neil



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Re: bug: list-index overloaded

[Han-Wen Nienhuys]

Neil Jerram escreveu:
> Han-Wen Nienhuys <hanwen@xs4all.nl> writes:
> 
>> Hi,
>>
>> ice-9/boot.scm defines a list-index (list, elt), which is in conflict
>> with srfi's list-index (pred list) function.
> 
> Why is that a problem?

Because list-index calls a different function depending on where I am.
running guile from the command line imports the ice-9 one by default.


-- 
 Han-Wen Nienhuys - hanwen@xs4all.nl - http://www.xs4all.nl/~hanwen


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Re: bug: list-index overloaded

[Andy Wingo]

Hi Han-Wen,

On Sun, 2006-11-26 at 15:28 +0100, Han-Wen Nienhuys wrote:
> ice-9/boot.scm defines a list-index (list, elt), which is in conflict
> with srfi's list-index (pred list) function.
> 
> please fix.

This has been the case for a long time, and would be an incompatible
change, breaking code in not-very-comprehensible ways. Sometimes I avoid
importing srfi-1 for this reason. Perhaps for Rob's 2.0 vision?

Andy
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Re: bug: list-index overloaded

[Neil Jerram]

Andy Wingo <wingo@pobox.com> writes:

> Hi Han-Wen,
>
> On Sun, 2006-11-26 at 15:28 +0100, Han-Wen Nienhuys wrote:
>> ice-9/boot.scm defines a list-index (list, elt), which is in conflict
>> with srfi's list-index (pred list) function.
>> 
>> please fix.
>
> This has been the case for a long time, and would be an incompatible
> change, breaking code in not-very-comprehensible ways. Sometimes I avoid
> importing srfi-1 for this reason. Perhaps for Rob's 2.0 vision?

In any case, I'm afraid I still don't understand what the problem is
here.

If someone wants the boot-9 list-index, and doesn't also need to use
srfi-1: no problem.

If someone wants the srfi-1 list-index, and doesn't also need the
boot-9 one, they just (use-modules (srfi srfi-1)) - no problem.

If someone wants to use both in the same program, they either give a
new name to the boot-9 one before doing (use-modules (srfi srfi-1)),
or they perform a renaming when doing (use-modules (srfi srfi-1)).

So what's the issue?

Regards,
     Neil



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Re: bug: list-index overloaded

[Kevin Ryde]

Andy Wingo <wingo@pobox.com> writes:
>
> This has been the case for a long time, and would be an incompatible
> change, breaking code in not-very-comprehensible ways.

I suppose the core list-index hasn't been documented, so maybe it'd be
ok to drop it.  It'd be good if only documented stuff in boot-9 was
actually visible ...


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