Re: [boost] constness in barrier.hpp

Subject: Re: [boost] constness in barrier.hpp
From: Gaetano Mendola (mendola_at_[hidden])
Date: 2011-12-22 07:09:54

On 12/22/2011 12:35 PM, Thomas Klimpel wrote:
> Gaetano Mendola wrote:
>> Hi all,
>> simple patch to make const the private member m_threshold in class
>> barrier
> 
> Could you please mention the name of the concerned library in the subject line (such as [thread])?

Next time I will.

> Care to explain which problem your patch solves? (In case it is a "real" problem, you might be 
> asked to also open a track ticket for the issue.) Making a non-static member variable const can 
> affect the semantics of the entire class. It is not clear to me whether this is also the case here,
> and whether this would be intended.

There is no real problem, I was inspecting that class for other reasons, and I saw that a
private member not meant to be changed during the life-cycle of the class is not marked
const. You can easily see it, the member m_threshold is meant to save the threshold value
across different generation in order to reset the barrier to the original status.

Regards
Gaetano