• Walter Bright (2/2) Mar 26 2009 Inspired by Don Clugston's recent compiler patch.
• Georg Wrede (3/6) Mar 27 2009 Yess!
• Walter Bright (5/13) Mar 27 2009 It's interesting because it's right before computers moved in and
• Paul D. Anderson (4/18) Mar 27 2009 Hmmm... I'm trying to recall when it was that Boeing started "automatica...
• Walter Bright (11/31) Mar 27 2009 When I was there the Wangs were in a separate, locked room. The
• bearophile (6/8) Mar 27 2009 I have appreciated the story at the beginning and I always like the work...
• dennis luehring (6/9) Mar 29 2009 what about Witold Baryluk "Converting FPU exceptions to D" comment on
• Don (5/17) Mar 30 2009 Definitely. The signalling NaN change is only the compiler side of

Walter Bright <newshound1 digitalmars.com> writes:

Inspired by Don Clugston's recent compiler patch.

http://www.reddit.com/r/programming/comments/87vqv/signaling_nans_rise_again/

Georg Wrede <georg.wrede iki.fi> writes:

Walter Bright wrote:
 Inspired by Don Clugston's recent compiler patch.
 
 http://www.reddit.com/r/programming/comments/87vqv/signaling_nans_rise_again/ 

Yess!
(And I loved the war story at the beginning!)

Walter Bright <newshound1 digitalmars.com> writes:

Georg Wrede wrote:
 Walter Bright wrote:
 Inspired by Don Clugston's recent compiler patch.

 http://www.reddit.com/r/programming/comments/87vqv/signaling_nans_rise_again/ 

 
 
 Yess!
 (And I loved the war story at the beginning!)

It's interesting because it's right before computers moved in and 
replaced everything. If I'd stayed another year, I'd have bought (with 
my own funds) a desktop computer and put it on my desk. I'm sure that 
within 2 years Boeing would have automatically supplied me with one.

Paul D. Anderson <paul.d.removethis.anderson comcast.andthis.net> writes:

Walter Bright Wrote:

 Georg Wrede wrote:
 Walter Bright wrote:
 Inspired by Don Clugston's recent compiler patch.

 http://www.reddit.com/r/programming/comments/87vqv/signaling_nans_rise_again/ 

 
 
 Yess!
 (And I loved the war story at the beginning!)

 
 It's interesting because it's right before computers moved in and 
 replaced everything. If I'd stayed another year, I'd have bought (with 
 my own funds) a desktop computer and put it on my desk. I'm sure that 
 within 2 years Boeing would have automatically supplied me with one.

Hmmm... I'm trying to recall when it was that Boeing started "automatically"
supplying desktop PCs. I know they didn't do that when I started here (1985). I
know they first started supplying the office assistants (they were
"secretaries" back then) with Wang word processors not too long after I
started. I seem to recall my boss getting a  PC at some point. I can't recall
exactly when, but it had to be five years or more after that.

I was hired at Boeing as a software engineer (my degree is in mechanical
engineering) so I always had access to a computer, but it was always either a
computer for the system we were designing or it  was test support equipment.
But a desktop computer for general use  didn't occur for a long time.

Paul

Walter Bright <newshound1 digitalmars.com> writes:

Paul D. Anderson wrote:
 Walter Bright Wrote:
 It's interesting because it's right before computers moved in and 
 replaced everything. If I'd stayed another year, I'd have bought
 (with my own funds) a desktop computer and put it on my desk. I'm
 sure that within 2 years Boeing would have automatically supplied
 me with one.

 
 Hmmm... I'm trying to recall when it was that Boeing started
 "automatically" supplying desktop PCs. I know they didn't do that
 when I started here (1985). I know they first started supplying the
 office assistants (they were "secretaries" back then) with Wang word
 processors not too long after I started. I seem to recall my boss
 getting a  PC at some point. I can't recall exactly when, but it had
 to be five years or more after that.
 
 I was hired at Boeing as a software engineer (my degree is in
 mechanical engineering) so I always had access to a computer, but it
 was always either a computer for the system we were designing or it
 was test support equipment. But a desktop computer for general use
 didn't occur for a long time.

When I was there the Wangs were in a separate, locked room. The 
operators had to go through a Wang training course, and then they 
"Wanged" full time. I picked up the Wang manual and started using one in 
about 5 minutes, which really annoyed the manager of the Wang pool.

(The managers of these fiefdoms worked hard at creating a mythology 
around their priestesses of the Wangs. In reality, it wasn't harder than 
any J-random text editor.)

I had blustered my way into the Wang pool because I was expected to 
handwrite the whole document and then hand it over to a Wang priestess 
to Wang it in. No way was I going to waste time doing that.

bearophile <bearophileHUGS lycos.com> writes:

Walter Bright Wrote:

 Inspired by Don Clugston's recent compiler patch.

I have appreciated the story at the beginning and I always like the work of
Don. Every one that tries to both speed up things and reduce the probability of
bugs has my appreciation.

I have to try write some programs with a compiler with such sNaNs, and then
I'll be able to tell if I like this feature.

I tried turning on -Wuninitialized to compile dmd under Linux using g++, and
got pages of spurious warnings about possible use of uninitialized variables,
every one of which was wrong.<


on dotnet. My limited experience in it shows me that most of the uninitialized
variables warnings it gives are for the better. So for me the situation to me
doesn't look as bad as you say.

Bye,
bearophile

dennis luehring <dl.soluz gmx.net> writes:

Walter Bright schrieb:
 Inspired by Don Clugston's recent compiler patch.
 
 http://www.reddit.com/r/programming/comments/87vqv/signaling_nans_rise_again/

what about Witold Baryluk "Converting FPU exceptions to D" comment on 
the codetalk article - seems to be another good extension for the fpu 
exception party

http://smp.if.uj.edu.pl/~baryluk/d/onpd/onp/ddoc/floatexp.html
http://smp.if.uj.edu.pl/~baryluk/d/onpd/onp/arithmetic/interval/floatexp.d

Don <nospam nospam.com> writes:

dennis luehring wrote:
 Walter Bright schrieb:
 Inspired by Don Clugston's recent compiler patch.

 http://www.reddit.com/r/programming/comments/87vqv/signaling_nans_rise_again/ 

 
 what about Witold Baryluk "Converting FPU exceptions to D" comment on 
 the codetalk article - seems to be another good extension for the fpu 
 exception party
 
 http://smp.if.uj.edu.pl/~baryluk/d/onpd/onp/ddoc/floatexp.html
 http://smp.if.uj.edu.pl/~baryluk/d/onpd/onp/arithmetic/interval/floatexp.d

Definitely. The signalling NaN change is only the compiler side of 
things. We need library support as well.

BTW, is Witold contactable? There's a lot of his code that I'd love to 
see in a standard library.