the max number of upvalue

[cloudwu <cloudwu@...>]

Hello Lua,

      I found that the max number of upvalue for a cclosure must less
      than 256, because ClosureHeader use a byte for nupvalyes.

-------------------------------
#define ClosureHeader \
        CommonHeader; lu_byte isC; lu_byte nupvalues; GCObject *gclist; \
        struct Table *env      
-------------------------------

     But the Reference Manual doesn't tell us this limit.
     I think writing this into the manual will be better, IMHO. :)

-- 
Best regards,
 cloudwu                          mailto:cloudwu@163.com
            http://blog.codingnow.com

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