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Re: Suffix for __float128 FP constants
On Mon, Jun 18, 2007 at 02:33:07PM -0700, Steve Ellcey wrote:
> > We need a standard for __float128. Otherwise, a program using
> > __float128 may generate different results with different
> > compilers on different platforms.
> >
> > BTW, I had a __float128 patch for glibc. Because there is no
> > __float128 standard, it wasn't accepted.
> >
> >
> > H.J.
>
> The HP compiler has an option that allows it to accept 'extended' as a
> type that is equivalent to __float80 and 'quad' as equivalent to 'long
> double' which is __float128 on HP-UX. For the quad type it uses the Q
> suffix for quad constants (and a lower case q for quad functions like
> sqrtq). I don't think this is a standard, but it is a precedent.
I used `q' as suffix for __float128 functions like __isinfq/__isnanq.
But I used strtoqd since we have strtold. I like `Q' suffix in
__float128 constants.
H.J.