[-0, +0, e]
int lua_lessthan (lua_State *L, int index1, int index2);
Returns 1 if the value at acceptable index index1 is smaller
than the value at acceptable index index2 ,
following the semantics of the Lua < operator
(that is, may call metamethods).
Otherwise returns 0.
Also returns 0 if any of the indices is non valid. |