void lua_settable (lua_State * L, int index);
Does the equivalent to t[k] = v
, where t
is the value at the given index, v
is the value at the top of the stack, and k
is the value just below the top.
This function pops both the key and the value from the stack. As in Lua, this function may trigger a metamethod for the "newindex" event (see §2.4).
lua_settable front stack situation
-----------------top-------------------
`Val'
1
table
-----------------end-------------------
after lua_settable(L, -3)
-----------------top-------------------
table
-----------------end-------------------