RE: [boost] <boost/fenv.hpp> needed?

From: Paul A. Bristow (boost_at_[hidden])
Date: 2003-06-02 10:39:44

Yes to all of these.  Paul

| -----Original Message-----
| From: boost-bounces_at_[hidden]
| [mailto:boost-bounces_at_[hidden]]On Behalf Of Beman Dawes
| Sent: Friday, May 30, 2003 4:05 PM
| To: Boost mailing list
| Subject: [boost] <boost/fenv.hpp> needed?
| 
| 
| C99 has a header <fenv.h> which provides types, macros, and functions "to 
| provide access to the floating-point environment."
| 
| Some Boost code in the Interval Library uses this header, or has to do 
| workarounds if not present. Metrowerks, GCC, and Dinkumware currently ship 
| the header, but many others don't.
| 
| * Should we have a <boost/fenv.hpp> header? (Greg Chicares asked the same 
| question a couple of years ago but got to reply.) Is there any general 
| workaround for when a vendor supplied <fenv.h> isn't present?
| 
| * Should there be a <boost/config.hpp> macro indicating <fenv.h> 
| availability?
| 
| * Should we start suggesting to vendors that they supply <fenv.h>?
| 
| Any opinions from floating point users?
| 
| --Beman
|