Re: lua_pushcfunction (lua 5.3) seems to be able to throw error, contrary to docs

[Roberto Ierusalimschy <roberto@...>]

> I may be misreading this, but:
> 
> 5.3 docs say that lua_pushcfunction cannot throw error (it's tagged with
> [-0, +1, -]).
> 
> But reading the code, it seems to be able to throw an error on this
> path:
> 
> lua_pushcfunction (macro)
>  calls lua_pushcclosure with n==0
>   calls luaC_checkGC  (even when n==0)
>    [...]
> 
> This looks like a problem in the code to me: wouldn't it make more sense
> to put the luaC_checkGC call in lua_pushcclosure inside the else
> clause?

Sure. This is a bug. Thanks for the report.

-- Roberto