From: Puverle, Tomas (IT) (Tomas.Puverle_at_[hidden])
Date: 2004-09-20 07:33:50
> The Win32 API provides InterlockedXXX for atomic operations
> on long data types, e.g. InterlockedIncrement. I am not sure
> about other OS's, but it should be possible to define an
> atomic_long class:
>
> class atomic_long
> {
> private: long val;
> public:
> inline atomic_long & operator++()
> {
> InterlockedIncrement( &val );
> return( *this );
> }
> // ...
> };
I think this design could cause problems - presumably, there would need
to be a way to test the value of the atomic_long, such as
operator==(long), but that could lead to problematic code:
if (++myAtomicLong == someValue)
//...
else
//...
An easy fix would be to make the return type void.
Tom
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