Linux Plumbers Conference: GNU Tools Track: glibc BoF (notes)

[Paul Zimmermann]

> > thank you for the report. Where can we get more information on the
> > "ppc64le long double change"?
> >
> > Is that https://fedoraproject.org/wiki/Changes/PPC64LE_Float128_Transition?
> > On that page, by "128-bit IEEE format" you mean a 128-bit encoding, but
> > holding only 64 bits of significand (format called ldbl-96 in glibc)?
> 
> Essentially it's about switching the distribution default from
> sysdeps/ieee754/ldbl-128ibm to sysdeps/ieee754/ldbl-128.
> 
> The former is a pair of doubles, using Dekker's method, and the latter
> is the regular binary128 IEEE quad-precision format.

thank you Florian for the clarification. Then "long double" in C will
map to binary128, like _Float128?

Paul