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2013/1/23 Coda Highland <chighland@gmail.com>:

>
> My statement stands: table.concat() is the fastest way to do it.
> There's no other way to do it without exposing yourself to quadratic
> behavior.
>

What about a C function that simply calls lua_concat on the whole
stack and passing it table.unpack(tbl) as argument list? Faster,
slower, much the same? (Of course, the semantics is then
different: metamethods may be called.)