[M3devel] LongrealType missed, was: Re: "FreeBSD4" false advertising

Wed Jul 14 13:23:49 CEST 2010

Mika, Please try updating libm3 and see if that works for you. Thanks.

 - Jay

----------------------------------------
> Date: Wed, 14 Jul 2010 12:55:16 +0200
> From: wagner at elegosoft.com
> To: m3devel at elegosoft.com
> CC: jay.krell at cornell.edu; mika at async.caltech.edu
> Subject: LongrealType missed, was: Re: [M3devel] "FreeBSD4" false advertising
>
> Quoting Mika Nystrom :
>
> > Argh is it really necessary to break source compatibility here?
> >
> > I also don't like that I as a client have to import IEEE things when all
> > I want is "LONGREAL" (and let Modula-3 do whatever it wants with that).
> >
> > I would propose at least having an interface LongrealType with
> >
> > CONST Hash = Longreal.Hash
> >
> > etc. so as not to force clients to import all the nitty-gritty about
> > various floating point representations. And so as not to break source
> > compatibility! If I change this by removing Type, my code will no longer
> > compile with the old compilers....
>
> Hm, I'm a little bit out of context here...
> What was the reason for this change? It seems nobody else has bothered
> so far.
>
> This was the commit in question:
>
> 2009-12-23 21:43 hosking
>
> * m3-libs/: m3core/src/m3makefile, libm3/src/types/ASCII.i3,
> libm3/src/types/ASCII.m3, libm3/src/types/Boolean.i3,
> libm3/src/types/Boolean.m3, libm3/src/types/COPYRIGHT-CMASS,
> libm3/src/types/Char.i3, libm3/src/types/Char.m3,
> libm3/src/types/Int32.i3, libm3/src/types/Int32.m3,
> libm3/src/types/Int64.i3, libm3/src/types/Int64.m3,
> libm3/src/types/Integer.i3, libm3/src/types/Integer.m3,
> libm3/src/types/Longint.i3, libm3/src/types/Longint.m3,
> libm3/src/types/LongrealType.i3, libm3/src/types/LongrealType.m3,
> libm3/src/types/RealType.i3, libm3/src/types/RealType.m3,
> libm3/src/types/Refany.i3, libm3/src/types/Refany.m3,
> libm3/src/types/Unicode.i3, libm3/src/types/Unicode.m3,
> libm3/src/types/WideChar.i3, libm3/src/types/WideChar.m3,
> libm3/src/types/m3makefile, m3core/src/float/Common/Extended.m3,
> m3core/src/float/Common/LongReal.m3, m3core/src/float/Common/Real.m3,
> m3core/src/float/IEEE/Extended.i3, m3core/src/float/IEEE/LongReal.i3,
> m3core/src/float/IEEE/Real.i3, m3core/src/float/VAX/Extended.i3,
> m3core/src/float/VAX/LongReal.i3, m3core/src/float/VAX/Real.i3:
>
> Move libm3/src/types into m3core.
> Note that LongrealType and RealType have been folded into m3core/src/float.
> Clients will need adjustment.
>
> Any comments?
>
> Olaf
>
> > Mika
> >
> > Jay K writes:
> >>
> >> Remove "Type" it appears.
> >>
> >>
> >> http://modula3.elegosoft.com/cm3/ChangeLog-2009
> >>
> >> search for "clients will need".
> >>
> >> e.g.
> >>
> >> +++ cm3/m3-demo/mentor/src/binpack/m3makefile 2009/12/23 22:05:06 1.2
> >> @@ -10=2C7 +10=2C7 @@
> >> =20
> >> import ("zeus")
> >> =20
> >> -list ("Real"=2C "RealType")
> >> +list ("Real"=2C "Real")
> >> =20
> >> zume ("Binpack")
> >> oblume ("Binpack"=2C "myview")
> >>
> >> --- cm3/m3-demo/mentor/src/binpack/RealList.i3 2001/01/13 14:18:20 1.1
> >> +++ cm3/m3-demo/mentor/src/binpack/RealList.i3 2009/12/23 22:05:05 1.2
> >> @@ -2=2C4 +2=2C4 @@
> >> (* Distributed only by permission. *)
> >> (* Last modified on Fri Jul 9 16:36:47 PDT 1993 by mhb *)
> >> =20
> >> -INTERFACE RealList =3D List(RealType) END RealList.
> >> +INTERFACE RealList =3D List(Real) END RealList.
> >>
> >> --- cm3/m3-demo/mentor/src/binpack/RealList.m3 2001/01/13 14:18:20 1.1
> >> +++ cm3/m3-demo/mentor/src/binpack/RealList.m3 2009/12/23 22:05:06 1.2
> >> @@ -2=2C4 +2=2C4 @@
> >> (* All rights reserved. *)
> >> (* See the file COPYRIGHT for a full description. *)
> >> =20
> >> -MODULE RealList =3D List(RealType) END RealList.
> >> +MODULE RealList =3D List(Real) END RealList.
> >>
> >> =A0- Jay
> >>
> >> ----------------------------------------
> >>> To: wagner at elegosoft.com
> >>> CC: jay.krell at cornell.edu=3B mika at async.caltech.edu
> >>> Subject: Re: [M3devel] "FreeBSD4" false advertising
> >>> Date: Wed=2C 14 Jul 2010 03:05:25 -0700
> >>> From: mika at async.async.caltech.edu
> >>>
> >>> I'm not actually sure I understand the intent of the changes in this area=
> >> .
> >>>
> >>> My old m3makefile has:
> >>>
> >>> Table("TextLongReal"=2C "Text"=2C "LongrealType")
> >>>
> >>> What am I supposed to use now?
> >>>
> >>> Mika
> >>>
> >>> Mika Nystrom writes:
> >>> >Olaf Wagner writes:
> >>> >>Quoting Mika Nystrom :
> >>> >>
> >>> >>> Hi Jay=2C Olaf=2C
> >>> >>>
> >>> >>> I actually built everything! After backing out some of my changes
> >>> >>> that I had tried to get 5.8.6-REL to build with=2C it worked=2C and m=
> >> entor
> >>> >>> ran=2C even.
> >>> >>
> >>> >>Great! So it's still possible to build cm3 on FreeBSD 4=2C though
> >>> >>not our release code.
> >>> >
> >>> >The differences relative to the current CVS head are very minor.
> >>> >
> >>> >1. Added FreeBSD4 to thread.quake as a non-pthread platform
> >>> >
> >>> >2. got rid of the -m32 flags in FreeBSD4.conf
> >>> >
> >>> >Everything else that needed to change I think Jay has managed to put in
> >>> >the CVS head.
> >>> >
> >>> >>
> >>> >>> But... what happened to libm3/src/types? Building my own code I get
> >>> >>> the following errors:
> >>> >>>
> >>> >>> new source -> compiling LRInterval.i3
> >>> >>> "../FreeBSD4/LRInterval.i3 =3D3D> ../src/Interval.ig"=2C line 5: unab=
> >> le to =3D20
> >>> >>> find interface (LongrealType)
> >>> >>> 1 error encountered
> >>> >>>
> >>> >>> I can't find LongrealType anywhere=2C do I have a broken checkout? We=
> >> ll=2C it
> >>> >>> is in one place=2C in "doc". (Same for RealType=2C maybe others?)
> >>> >>
> >>> >>See =3D20
> >>> >>http://modula3.elegosoft.com/cgi-bin/cvsweb.cgi/cm3/m3-libs/libm3/src/t=
> >> ypes/=3D
> >>> >>Attic/LongrealType.i3
> >>> >
> >>> >Surely this is wrong?? I am looking for an interface that has T =3D
> >>> >LONGREAL=2C not something that lets me muck around with the representati=
> >> on
> >>> >of IEEE=2C VAX=2C etc.=2C floating-point formats.
> >>> >
> >>> >Why is it even in m3core? This seems clearly like libm3 stuff.. I notice=
> >> d
> >>> >Boolean.i3 also moved.
> >>> >
> >>> >Also if there is no importable interface called LongrealType that is goi=
> >> ng
> >>> >to cause endless problems with source that is supposed to compile under
> >>> >different versions of Modula-3. Even relatively recent CM3s required
> >>> >you to use LongrealType to instantiate generics.
> >>> >
> >>> > Mika
> >> =
> >
>
>
>
> --
> Olaf Wagner -- elego Software Solutions GmbH
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