Re: OSAtomic built-in operations
Re: OSAtomic built-in operations
- Subject: Re: OSAtomic built-in operations
- From: Stefan Werner <email@hidden>
- Date: Sun, 06 May 2012 17:11:17 -0700
On 06.05.2012, at 02:05, Andreas Grosam wrote:
> I would like to use OSAtomicCompareAndSwap32 and OSAtomicOr32Orig using the same variable. Unfortunately, the first requires a signed int, the other an unsigned int.
>
> How can I get this to work?
Have you tried union{} ?
union {
int32_t s;
uint32_t u;
} atomicvar;
atomicvar.u = 0;
OSAtomicCompareAndSwap32(0, 1, &atomicvar.s);
OSAtomicOr32Orig(0, &atomicvar.u);
-Stefan
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