[boost] Re: [boost::thread] locks, exceptions and assertions

From: Russell Hind (rhind_at_[hidden])
Date: 2003-07-21 10:40:54

David Abrahams wrote:
> 
> Well, that's not my philosophy FWIW.  Mine is:
> 
>    if the condition is a programmer error, use assert
>    otherwise, use a well-documented exception
> 

So can I draw you back to the original question of why a locked 
scoped_lock throws rather than asserts?  The only thing that can cause 
this is calling lock on it twice which is a programming error, isn't it? 
   It certainly isn't dependent on any external factors that I can see. 
  Or are assert/throw decisions left up to the individual library 
implementors boost and William Kempf has a different view to yours on 
asserts/throws?

Thanks

Russell