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On Fri, 07 Jan 2011 17:59:47 +0200, Roberto Ierusalimschy <> wrote:

Does anyone still use references in real applications? For what?

I have a modified index2adr that allows range of pseudoindices to map to values in the
array part of the registry.
I have also modified copies of luaL_ref and luaL_unref that work only with the
registry, implicitly (no argument 't').

This is used by non-lua part of the code to implement references to Lua values,
and to have well-known indices to important values.
It also makes C part more readable, sometimes reducing number of Lua API calls
more than twice.