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Re: fpu_control.h
- To: Oisin <ofeeley at is2 dot dal dot ca>
- Subject: Re: fpu_control.h
- From: Brian Gough <bjg at network-theory dot co dot uk>
- Date: Sun, 2 Apr 2000 15:22:24 +0100 (BST)
- Cc: gsl-discuss at sourceware dot cygnus dot com
- References: <Pine.A41.3.95.1000401023753.35194A-100000@is2.dal.ca>
I don't know any general documentation on this topic. Recent versions
of the GNU C Library manual cover its new fpenv functions though.
Oisin writes:
> Hello all,
> well now that I'm experimenting with GSL I must say that I'm very
> impressed - especially with the PRNG facilities! This library is
> filling a gaping void on Linux.
> I have a question that I have every hope that someone here
> can answer - I notice that you are using the fpu set control-word
> stuff for x86 platforms. I had discovered this in a very unprincipled
> romp through the headers. I've asked about techniques to do this on
> newsgroups etc. and there appears to be little common knowledge about
> it , especially about the change to _FPU_SETCW() in glibc. I have
> had a hard look at the info files that came with RH6.1 to see if there
> is mention of this, but there is none. What/where is the most current
> source of information on this?
> Cheers,
> Oisin
>