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lua_Integer lua_tointeger (lua_State *L, int index);
Converts the Lua value at the given acceptable index
to the signed integral type lua_Integer .
The Lua value must be a number or a string convertible to a number
(see §2.2.1);
otherwise, lua_tointeger returns 0.
If the number is not an integer,
it is truncated in some non-specified way. |