Re: [ANN] lrexlib 2.7.2 released
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- Subject: Re: [ANN] lrexlib 2.7.2 released
- From: liam mail <liam.list@...>
- Date: 2013年1月10日 00:53:52 +0000
On 10 January 2013 00:38, Luiz Henrique de Figueiredo
<lhf@tecgraf.puc-rio.br> wrote:
>> is there an easy way to convert from malloc and free to using the Lua allocator? Some macros perhaps? Any example code?
>
> #define LUA_ALLOC(p,size) lua_getallocf(L,NULL)(NULL,p,0,size)
> #define malloc(size) LUA_ALLOC(NULL,size)
> #define free(p) LUA_ALLOC(p,0)
> #define realloc(p) LUA_ALLOC(p,size)
>
> This code assumes a Lua state named L in the scope. If that is not the case,
> fix LUA_ALLOC.
>
Be careful as this can result in undefined behaviour as malloc, free
and realloc can be reserved identifiers, see 7.1.3 C99 for more info.
--Liam