Re: faster AS_IF,AS_CASE

[Eric Blake]

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According to Ralf Wildenhues on 8/14/2008 12:39 PM:
>> For example, is my new macro m4_foreach_pair worth documenting as a 
>> supported 
>> interface, or should I leave it undocumented?
> 
> How about documenting it after 2.63, so we can change it until the next
> version if we find issues with it?

Sure.

> 
>> Also, should it be named slightly differently since it behaves more
>> like m4_map than m4_foreach?
> 
> m4_map_pair maybe?

I went with the name m4_transform_pair, since it turned out to be very
easy to add m4_transform with similar semantics but visiting one argument
at a time.  In terms of macro invocations,

m4_transform([func], [arg1], ...)

is more efficient (and less typing) than the identical output of

m4_foreach([var], [[arg1], ...], [func(m4_defn([var]))])

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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