Re: [glean-dev] catching FP exceptions in C++

[Allen A. <ak...@po...>]

On Tue, Nov 08, 2005 at 04:08:19PM -0700, Brian Paul wrote:
| I'm going to be writing a new glean test to see how OpenGL handles 
| infinite/nan/denorm/etc floating point values.

You're a braver man than I am. :-)

| My experience with exception handling in C++ is pretty slim and I'm 
| not even sure if there's a standard way to handle them.

I'm not either.  I've checked my printed references and done a few web
searches, and I haven't found anything that claims to work universally.

I suspect the most portable thing we could do would be to use the C99
standard IEEE exception mechanism.  (See "man fetestexcept", etc.)  It
depends on the ANSI C signal-catching utilities, but nothing
*nix-specific as far as I can tell.

However, I don't have any experience with it, so I don't know for sure
that it'll do the job.

Allen