Re: #ifdef statement inside #define

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On 8/18/06, toni <topi23@xxxxxxxxx> wrote:
hello,

> Has anyone an idea how to code following macro:

> #define INIT()    \
>
>     #ifdef THREDSAFE        \
>
>               lock_mutex()   \
>
>     #endif    \
>

maybe...

#ifdef THREDSAFE
  #define INIT() lock_mutex()
#else
  #define INIT() do {} while (0)
#endif

regards,

toni

Yep, this is the best way to do it, so you can do fool things like
if (foo)
  INIT();
bar();




> The error ist that after a # operator there is an parameter expected.
> The normal escape doesn't help in this case.
>
> Shure I can write this in every line I need it but I want to have a
> macro.
>
> CU
>
> Katharina
>
>
>
>
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--
toni <agar9938@xxxxxxxxxxxxxxxxxx>


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