Dear Forum,
is there a canonical way in gap to generate lexical closures for functions?
The best I could come up with is something like
MakeF:=function ()
local q;
q := ValueGlobal( "q" );
return function(x)
return x+q;
end;
end;
which captures the value of the global value of q, so that
q:=10; f0:=MakeF();
q:=20 f1:=MakeF();
gives
f0(0)=10 and f1(0)=20
and it "sort of works" (and, at least for the cases I have in mind it
might be enough)
Still, I am asking if there might a better (or canonical) way to implement this?
Regards,
luca
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