Re: [boost] atomic_count::operator++ return type

Subject: Re: [boost] atomic_count::operator++ return type
From: Peter Dimov (pdimov_at_[hidden])
Date: 2009-04-10 13:21:49

JOAQUIN M. LOPEZ MUÑOZ:
> Hi,
>
> Some of the implementations of boost::detail::atomic_count::operator++ 
> return a long (vg. Win32) while for others the return type is void.
> Is it feasible to change this so that a long (i.e. the value of the atomic 
> count after incrementing) is returned always?
> As it happens, I have a usage case for this in Boost.Flyweight.

What memory visibility guarantees does your use case need? op++ returns no 
value because it currently promises no visibility guarantees.