Re: Lua and int64 in a minimal, backward compatible, patch

[Asko Kauppi <askok@...>]

Maybe it is about the number resolution. Changing LUA_INTEGER won't  
give 64-bit accuracy, since numbers are stored as doubles.

I suggested him to take the LNUM patch, and study anything LNUM_INT64  
in it.  I'd just use the LNUM patch as is.

-asko


Luiz Henrique de Figueiredo kirjoitti 23.7.2008 kello 4:22:

> > I would like to change the original Lua distribution to switch from  
> > "int32" to "int64" for integer support in a totally backward  
> > compatible way with existing Lua modules and tools.
> > What are the absolute minimal changes that need to be made to the  
> > Lua core?
>
> I'm not sure what you mean here. Lua does not use either "int32" or
> "int64". If you mean the size of lua_Integer, that's configurable
> by changing LUA_INTEGER in luaconf.h. But you'll not get binary
> compatibility with existing Lua modules and tools; you'd have to
> recompile them.