This is the mail archive of the
fortran@gcc.gnu.org
mailing list for the GNU Fortran project.
Re: Ping Re: Implement C _FloatN, _FloatNx types [version 5]
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Michael Meissner <meissner at linux dot vnet dot ibm dot com>
- Cc: <gcc-patches at gcc dot gnu dot org>, <fortran at gcc dot gnu dot org>, <jason at redhat dot com>, <richard dot earnshaw at arm dot com>, <nickc at redhat dot com>, <ramana dot radhakrishnan at arm dot com>, <marcus dot shawcroft at arm dot com>, <dje dot gcc at gmail dot com>, <segher at kernel dot crashing dot org>, <murphyp at linux dot vnet dot ibm dot com>
- Date: Fri, 5 Aug 2016 00:12:12 +0000
- Subject: Re: Ping Re: Implement C _FloatN, _FloatNx types [version 5]
- Authentication-results: sourceware.org; auth=none
- References: <alpine.DEB.2.20.1606211202040.4526@digraph.polyomino.org.uk> <alpine.DEB.2.20.1606211738200.31330@digraph.polyomino.org.uk> <alpine.DEB.2.20.1606231418120.21240@digraph.polyomino.org.uk> <alpine.DEB.2.20.1606271720270.7438@digraph.polyomino.org.uk> <alpine.DEB.2.20.1607191347340.9265@digraph.polyomino.org.uk> <alpine.DEB.2.20.1607222158330.22448@digraph.polyomino.org.uk> <alpine.DEB.2.20.1607291736340.29277@digraph.polyomino.org.uk> <20160804235348.GA24862@ibm-tiger.the-meissners.org>
On Thu, 4 Aug 2016, Michael Meissner wrote:
> Or is the check at the end whether ieee_bits > (for extended tests) or == (for
> normal tests) sufficient to say that SFmode, DFmode, really is IEEE?
Yes. That's the semantics of ieee_bits as detailed in the comment in
real.h. Note that the following are not IEEE and so are not candidates
for these types: SPU single precision; IBM long double; m68k extended; VAX
formats; ARM alternative half-precision; PDP-11 formats.
--
Joseph S. Myers
joseph@codesourcery.com