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>   This won't destroy any of the values on the stack, and it calls any
> user-supplied "__tostring" method.  Yes, it relies upon the Lua function
> tostring() to be in the global namespace, but that isn't an issue with my
> code.  I also print both the positive and negative stack indecies, which I
> find useful.

You can call 'luaL_tolstring' directly, instead of using 'tostring'.

-- Roberto