luaD_reallocstack

["john rayn" <johnrayn@...>]

Dear lua user，

	 When I tried to compile lua 5.0 with VisualC++6, I was confused by some 
code in ldo.c:


void luaD_reallocstack(lua_State * L, int newsize)
{
	TObject *oldstack = L->stack;
	luaM_reallocvector(L, L->stack, L->stacksize, newsize, TObject);
                         ^^^^^^^^ 
                     I think oldstack(old L->stack) will be a Dangling 
Pointer
	L->stacksize = newsize;
	L->stack_last = L->stack + newsize - 1 - EXTRA_STACK;
	correctstack(L, oldstack);
                       ^^^^^^^
		is oldstack a Dangling Pointer here ?
}

With best regards
				

　　　　　　　　John Rayn
　　　　　　　　JohnRayn@hotmail.com
　　　　　　　　　　2005-08-18

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