[metapost] Type of loop index in for...within

Taco Hoekwater taco at elvenkind.com
Tue Jun 16 12:52:50 CEST 2009

Nicola wrote:
> Hi,
> it seems that I cannot find this explicitly stated anywhere: is the type 
> of the loop index in a for... within loop always 'picture'? In other 
> words, does the following *never* raise an error?

That is correct. The loop index is always a capsule of type 'picture'.

Best wishes,

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