[NTG-context] METAPOST vardef returning multiple and non-numeric types as a single answer?

[Gerben Wierda]

Maybe a nice little explanation (educational with good examples) of ‘how to use pass by reference’ and ‘building and using complex data structures’ would be useful for people. Say, some ‘patterns’.

G  

> On 16 Mar 2020, at 10:38, Hans Hagen <j.hagen at xs4all.nl> wrote:
> 
> that said, after muy share of mp programming i would not have thought about the text y as pass by reference, also because it's only true for these pseudo arrays (maybe suffixes also work)

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