Re: [ANN] LuaJIT-2.0.0-beta7

[Shmuel Zeigerman <shmuz@...>]

On 05/05/2011 21:28, Peter Cawley wrote:
> This is not surprising, as IIRC, there is no guarantee that the
> default allocator doesn't use the opaque UD value, and you go and
> change the opaque UD value.

Well, I must have overlooked that. Time to fix my codes.

Then, if one still wants to use the default Lua/LuaJIT allocator and at 
the same time his own UD, what are the options?

> lua_Alloc default_alloc;
> void *default_ud;
> int my_ud = 123;
>
> void * MyAlloc (void *ud, void *ptr, size_t osize, size_t nsize)
> {
>   return default_alloc(default_ud, ptr, osize, nsize);
> }
>
> void ChangeAlloc (lua_State *L)
> {
>   default_alloc = lua_getallocf(L, &default_ud);
>   lua_setallocf(L, MyAlloc, &my_ud);
> }

Is it guaranteed that the default allocator and/or default UD pointer 
will never change? (It seems a silly question but I doubt such a 
guarantee exists).

--
Shmuel