Re: [boost] [math-toolkit] Expected release?

From: John Maddock (john_at_[hidden])
Date: 2007-10-18 08:33:36

Gennadiy Rozental wrote:
> Hi, John
>
> Can you please take a look on failures today. I've enabled additional
> error detection within Boost.Test with floating point operations on
> WIN32 platform. Does theses look valid to you?

Ahhhh! No, there are quite a lot of tests that are expected to return 
infinity, or underflow to zero.  Enabling floating point hardware exceptions 
will break those: the tests are predicated on numeric_limits<>::has_infinity 
etc, but not on the *runtime* value of the hardware exception flags.  I 
assume you're calling __control87 somewhere to turn these exceptions on?

My gut feeling is that this is the wrong moment to introduce a breaking 
change like this, especially as you're changing the compiler's default 
behaviour.  Given enough time it's work-aroundable, but it's time I'd rather 
not spend just at present, and besides I would expect this to break 
libraries like random and interval as well.  If you want to make this an 
option for Boost.Test that's fine, it's making this the default in the run 
up to a release that I'm not happy with.

Regards, John.