Re: [boost] [thread] A simply static initializeable mutex

From: Chris Thomasson (cristom_at_[hidden])
Date: 2006-10-30 23:26:26

the decrement predicates

>    bool try_dec() throw() {
>      intword_t local;
>      do {
>        local = m_count.load(mb::naked);

>        if (! local || local < 1) { return false; }
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

>        // use mb::fence to cover *both acquire and release
>        // wrt the result of the decrement
>      } while(! m_count.cas(local, local - 1, mb::fence));
>      return (local == 1);
>    }

could all look like this:

 if (local < 1) { return false; }

I made a redundant assertion...