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On Wed, Nov 20, 2013 at 4:08 PM, Fabien <> wrote:
> I think it would be more idiomatic to have it replace the table's content
> in-place, leaving it up to the caller to copy the table or not before
> modifying it. But then we face a recurring problem: it's surprisingly hard
> to agree on a general proper way to copy a table in Lua.

Oh yes, I remember when we all tried ;)

But (just as a data point) it's amazing what LuaJIT can do with code
that any Lua programmer would see as 'inefficient'.

For instance, have a look at Lua Fun:

Will work on stock Lua (with one small change). But the generated
machine code for that 'functional' expression is most impressive.

Whether it is more _readable_ I leave as another question...

steve d.