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Hi all,

As a C programmer, I am a little confused whether need to check the return values of Lua C APIs.  

For example, I know if "lua_pcall" returns non-zero value, it means failed. But as other non-void return 
value functions, such as "lua_getglobal", doesn't it need to check the return value?

I try to refer the manual, But the manual doesn't seem to give answers about whether need to check 
the return values of APIs.


Best Regards
Nan Xiao