OK, I'm building ghc-5.04.3 freshly from source, but when running
./configure initially, I forgot to use the --prefix= option to set the
final installation location. Now, after fourteen hours of building,
I use `make install' and discover the mistake. :-( How can I recover
the situation?
I
discussion of Hat:
http://www.haskell.org/mailman/listinfo/hat
Regards,
The Hat team at York
[ The Hat team consists of Malcolm Wallace, Olaf Chitil, and Colin Runciman,
with thanks to many other students, visitors, collaborators and reviewers.
The development of Hat was funded
I'm trying to build ghc-5.04.3 from source on a sparc-solaris-2.6
machine, using 5.02.3. It throws up the following build error.
Any ideas what might be going wrong?
/tmp/ghc11170.hc: In function `SystemziTime_zdLrpHVeta_entry':
/tmp/ghc11170.hc:10508: called object is not a function
If it
_ccall_result = (timezone()); /* line 10508 */
What does mk/config.h say about HAVE_ALTZONE? On a Solaris 8 box I'm
looking at it says HAVE_ALTZONE is defined.
$ grep ZONE mk/config.h
/* #undef HAVE_ALTZONE */
/* #undef HAVE_TIMEZONE */
#define TYPE_TIMEZONE
Simon Marlow [EMAIL PROTECTED] writes:
I'm trying to build ghc-5.04.3 from source on a sparc-solaris-2.6
machine, using 5.02.3. It throws up the following build error.
Any ideas what might be going wrong?
I'm not sure, and I'm afraid our one and only Sparc box has just died,
probably
Hi GHC folks,
I'm trying to build ghc-5.04.3 from source on a sparc-solaris-2.6
machine, using 5.02.3. It throws up the following build error.
Any ideas what might be going wrong?
Regards,
Malcolm
rm -f System/Time.o; if [ ! -d System/Time_split ]; then mkdir System/Time_split; else
[EMAIL PROTECTED] (Ketil Z. Malde) writes:
I notice the release notes say a few architectures should be possible
to port to, in particular AIX/POWER. How possible is that, exactly?
Has anybody done it with any success? Alternatively, is there any
alternative Haskell compiler (I guess that
nhc98-1.16
--
http://www.haskell.org/nhc98
We announce a new release, 1.16, of the Haskell compiler nhc98, with the
following new features and bugfixes of note.
* nhc98 once again builds on Windows
hmake-3.07
--
http://www.haskell.org/hmake
We announce a new release, 3.07, of hmake, the automatic compilation
manager for Haskell programs. This fresh version has the following
improved configuration features over previous
Graham Klyne had some questions about XML parsing in Haskell. Here is
the current state of play with HaXml.
1. Works with HUGS and GHC (I'm currently developing with HUGS, but
anticipate using GHC for production code).
HaXml certainly works with ghc (and ghci). It probably still works
with
Aaron Denney [EMAIL PROTECTED] writes:
With a recursive function of more than one argument, does it make sense
to keep the arguments that tend to remain constant closer to the front?
i.e.
Will any implementations notice interp y x:xs calls interp y, and keep
some sort of interp y partial
Simon Marlow [EMAIL PROTECTED] writes:
To fix these
problems you have to think carefully about strictness and demand in your
program. For memory we have heap profilers to help out, but we don't
have I/O descriptor profilers for lazy I/O!
Simon Peyton-Jones [EMAIL PROTECTED] writes:
Ah yes, this is a genuine bug. Haskell 98 changed at some point to
allow identifiers and field labels with a leading '_', but the library
didn't keep pace.
I believe the fix for 'lex' is something like the following.
Regards,
Malcolm
diff -u
Hal Daume III [EMAIL PROTECTED] writes:
Not for me, GHC 5.04.2 (Solaris).
here it goes right the first time, but then i have to type two more
letters (in this case 'b\n') to get it to respond to hello.
Solaris has a slightly bizarre buffering scheme in raw terminal
mode, whereby it buffers
Tobias Gedell [EMAIL PROTECTED] writes:
GHC is such a program, as are the other Haskell compilers. Perhaps
too complicated for your purposes, though.
GHC has too many mutually recursive modules to be useful, otherwise it
would be great! But I will look more into the other compilers,
Alex Ferguson [EMAIL PROTECTED] writes:
(This was all motivated, btw, by trying to build HaXml under ghc/cygwin,
which fell for me at the first hurdle of first catch your hmake in the
recipe. I've now gotten as far as a _build_ of hmake, but it then runs
into similar issues with its own use
Dean Herington writes:
| Using GHCI 5.04.2, ... the '' character of a '-' lexeme
| appears in bold on my terminal.
Is it possible that your terminal is set up for syntax-highlighting,
or that you are using GHCi from within something like emacs where
such a facility might be available? For
The interactive loop of ghci displays an interesting evaluation fault
to do with derived equality. In the attached source file, there is
a simple guard which tests some equalities, and basically the same
value is given on the left and right of the (==). Yet, it evaluates
to False in interactive
Simon Marlow [EMAIL PROTECTED] writes:
It may be of interest to note that hmake currently uses
solution 2 below.
And this is also what the current CVS version of GHC does. Note that
you need to create the directories if they don't exist (GHC won't do it
for you).
Whereas hmake does
Martin Norbäck [EMAIL PROTECTED] writes:
The GHC manual needs to specify what happens when you use -odir and
hierarchical modules with --make.
It may be of interest to note that hmake currently uses solution 2 below.
Solution 2: files put in -odir are put in directories (files will end up
Kirsten Chevalier [EMAIL PROTECTED] writes:
I'd like to be able to determine the percentage of allocated objects of
a particular type at specific points in a program's execution. I know
that I can use heap profiling to create a graph of memory usage broken
down by type, but is there any way
Martin Huschenbett [EMAIL PROTECTED] writes:
main :: IO ()
main = do
-- do something
cfun -- I wan't to call the function written in C here
-- do again something
And now my question is: How do i realize this?
Can you please tell me how write a binding and how tu run
Ingo Wechsung [EMAIL PROTECTED] writes:
I wonder if the compiler could check, if all possible combinations have
been checked in a pattern match.
In ghc, use the compile-time option -fwarn-incomplete-patterns
Regards,
Malcolm
___
Haskell-Cafe
I know it is no far too late to do anything about it, but I just
discovered another error in the Haskell'98 Libraries Report.
The Time module exports all but one of the fieldnames of the
CalendarTime datatype, bizarrely omitting ctSec.
Regards,
Malcolm
HaXml-1.08
--
http://www.haskell.org/HaXml/
We announce a fresh release of HaXml, a collection of libraries and
tools for using XML from Haskell. This is mainly a bug-fix release.
What is new in
I'm trying out MPTC with functional dependencies for the first time
in GHC. However, I'm not sure of the syntax. MPJ's ESOP 2000 paper
gives the following example:
class FiniteMap i e fm | fm - (i,e) where
emptyFM:: fm
lookupFM :: i - fm - Maybe e
extendFM :: i - e - fm -
Alastair Reid [EMAIL PROTECTED] writes:
It sounds a little like a problem I had where trap 26 (I think this is
a timer signal) was interrupting the subprocess. Nowadays I use this
function:
my_system :: String - IO ExitCode
my_system xs = do
-- putStrLn xs -- for debugging
Does anyone know what might be causing the following error from a
program that uses System.system?
Fail: interrupted
Action: system
Reason: Interrupted system call
The shell command given to System.system runs and terminates with a
non-zero exit code (actually 8). I expected to bind
Claus Reinke [EMAIL PROTECTED] writes:
3) shouldn't there be a way of telling ghc --make about ways
to generate the .hs/.lhs files it is looking for (aka suffix rules)?
The standard examples are happy, cpp, drift, ..
If you are willing to switch from ghc --make to hmake, you get various
Marco van Roshum [EMAIL PROTECTED] writes:
In my program, I use the function isDigit, which is part of
haskell98.Data.Char
When compiling my program, I get the error: Variable not in scope:
isDigit. The same error occurs when I explicitly use the package
haskell98 as in the following
Martin Norbäck [EMAIL PROTECTED] writes:
So I want to redirect the output with -odir OUTPUT_DIR
However it won't work since ghc wll put the compilation output of both
modules in OUTPUT_DIR/Module.o and subsequently fail to link.
You could use a recent version of hmake, with the -d
ERROR c:\1.hs:69 - Syntax error in expression (unexpected `-')
Line 69:
sortName (wn:ws)=sortName [(w,wc) (w,wc) - ws,not (isGreater (w,wc) wc)]
++[wn]++sortName[(w,wc)|(w,wc)-ws, isGreater (w,wc) wn]
The first list comprehension expression
[ (w,wc) (w,wc) - ... ]
is missing a
Simon Peyton-Jones [EMAIL PROTECTED] writes:
(You can change echoing settings via the IO.hSetEcho etc.)
Ahem, one of the deficiencies of Haskell'98 is that there is no function
IO.hSetEcho. There used to be one in Haskell 1.3 I think, so I guess there
was a good reason for removing it?
Simon Peyton-Jones [EMAIL PROTECTED] writes:
What I intended was
a simple interactive Haskell program should behave the same
on any OS/environment
What you and Ross seem to be saying is
no, the behaviour of the program can, and should, depend
on the
Alastair Reid [EMAIL PROTECTED] writes:
http://www.cs.york.ac.uk/fp/profile.html
[York don't seem to put links to their pages on the web. Citeseer
may have some of them.]
Thanks for pointing this out. I've now added lots of links for papers on
that webpage.
Regards,
S H [EMAIL PROTECTED] writes:
I downloaded the file hugs98-Dec2001-1.i386.rpm onto
the freshly-installed red hat 7.1 (no other software
has been installed). It complains that
libreadline.so.4 is needed. The system has the
package readline-4.1-9 installed which provides
HaXml-1.07
--
http://www.haskell.org/HaXml/
Yes, hot on the heels of HaXml-1.06, another new release, 1.07.
Only two days between releases. Why?
* We got the location in the hierarchical
hmake-3.06
--
We are pleased to announce a fresh, bugfix, release of hmake, the
Haskell compilation manager.
www.cs.york.ac.uk seems to be down. Does anyone know of a mirror that
might have the new release, or when the
HaXml-1.06
--
http://www.haskell.org/HaXml/
We are pleased to announce a fresh release of HaXml, the collection of
libraries and tools for using XML from Haskell. HaXml includes
* a parser for
isn't confused by the escaped
character \\ in a literal string.
More info, and downloads
http://www.cs.york.ac.uk/fp/hmake/
Regards,
Malcolm Wallace
___
Haskell mailing list
[EMAIL PROTECTED]
http://www.haskell.org
Mario Lang [EMAIL PROTECTED] writes:
Also, I've found a reference to a working mate-problem
solver which was used for HAT testing, but
also, no code.
The chess end-game solver we used with Hat is one written by Colin
Runciman. The code is attached (the main program is in Mate.hs), in
a tar
when building nhc98 with ghc-5.04 I got the following error:
Fail: Can't find module PrelBase in
.
Or in standard libraries at
/usr/local/lib/ghc-5.04/imports/base
...
Asked for by: Decl.lhs
[Check settings of -I or -P flags?]
Anyway, this seems to be a ghc
Alastair Reid [EMAIL PROTECTED] writes:
[...] (How do these bugs last so long?)
None of the compilers actually use the report Prelude/libraries.
Not entirely true. A large chunk of the nhc98 (and hat) libraries
is copied directly from the Report. The real problem (maybe this
is what you
Is there some reason haskell binaries have to be statically linked?
It would not be entirely fair to lay all the blame for large Haskell
binaries entirely at the door of static vs. dynamic linking.
After all, the Haskell version is dynamically linked against exactly
the same shared libraries
I have just discovered another minor fault in the revised Haskell'98 Report.
In the definition of the Standard Prelude, (page 115)
instance Read Float where
readsPrec p = readFloat
instance Read Double where
readsPrec p = readFloat
are incorrect because they do not deal
| anymore. What I would like is that the defualting rules refer
| to the classes in my version of the Prelude,
| not the Standard Prelude.
You can always get that (with the -fno-implicit-prelude thing) by adding
default [Int, Double]
or whatever to your source module, just after
The defaulting mechanism *only* applies to types constrained by
the original builtin Prelude.Num, not to the transformed class
HatPrelude.Num.
I did wonder how Hat tackled this.
Out of curiosity what is the solution that Hat uses?
Hat doesn't have a solution. When the lack of correct
Dylan Thurston [EMAIL PROTECTED] writes:
Thanks for pointing this out; this seems to be another bug in ghc
5.02.2. According to the report, it seems unambiguous that, e.g.,
-5`div`2 should be -2, not -3.
Yes,-5`div`2 == -(5`div`2) == -2
but (-5)`div`2 == -3
Ghc 5.02.2 has the
Aha! GHCi (and ghc --make) has a pre-pass that looks through the
file for import declarations so it can build the dependency tree,
and it does this without using a proper Haskell parser. I'll bet
it's ignoring the CPP directives. Probably it should flag an error,
I'll look into it.
I am trying to compile ghc on my powermac (debian 3.0)
I'm afraid we don't have a port for your system at the moment.
Furthermore the road to porting GHC is long and tortuous :-(
On the other hand, if you just want any Haskell compiler, nhc98 builds
and installs very easily on ppc-linux.
Hal Daume III [EMAIL PROTECTED] writes:
when I use hat, hmake seems to look in the wrong place for the generated files:
hat-trans ../Util/STM.hs
Wrote ../Util/TSTM.hs
ghc [...] ../TUtil/STM.hs
ghc-5.02.3: file `../TUtil/STM.hs' does not exist
so it seems hat is creating
I think the problem is that GHCi doesn't respect #ifdef
conditional compilation.
I wasn't aware of any bugs in that area, can anyone provide some sample
code? (and I'm surprised, because GHCi just runs cpp in the same way as
GHC).
Ah, I think it is probably just a failure to use the
to Thomas Nordin).
* Numerous other small tweaks and bugfixes.
for information on nhc98: http://www.cs.york.ac.uk/fp/nhc98/
for information on hmake: http://www.cs.york.ac.uk/fp/hmake/
Regards,
Malcolm Wallace
___
Haskell mailing list
hat-2.00
We are pleased to announce a new release of Hat, the Haskell tracing
(an debugging) system for Haskell'98.
This release of Hat is a major release. It
Simon Peyton-Jones [EMAIL PROTECTED] writes:
http://research.microsoft.com/~simonpj/h98-revised
404 Not Found.
Make that
http://research.microsoft.com/~simonpj/haskell98-revised
___
Haskell mailing list
[EMAIL PROTECTED]
Arjan van IJzendoorn [EMAIL PROTECTED] writes:
There is a Memo module in Hugs, which I just used for fib. It doesn't
seem to speed it up, though:
You need to call the memoised version in the recursive case.
module Fib where
import Memo
slow 0 = 0
slow 1 = 1
slow n = slow (n-1) +
Hal Daume III [EMAIL PROTECTED] writes:
The gnu web page
(www.gnu.org/manual/gmp-4.0.1/html_node/gmp_70.html) claims that Haskell
(GHC) has bindings to GMP. Is this true? How can I access these
routines?
The type Integer?
Regards,
Malcolm
Thomas Hallgren [EMAIL PROTECTED] writes:
* hugs Dec 2001: main outputs: (FromInteger (-2),True)
* ghc 5.02.2: main outputs: (FromInteger (-2),True)
* hbc 0..5b: main outputs: (Negate (FromInteger 2),False)
* nhc98 1.12: compiler outputs: Fail: What? matchAltIf at 7:13
Simon Marlow [EMAIL PROTECTED] writes:
Re the current and recurring conflicts between profiling and
non-profiling code; how hard would it be to name GHC's output files
differently when compiling with -prof?
The proposal, therefore, is to extend the meaning of '-prof' to mean
'-prof
Sven Moritz Hallberg [EMAIL PROTECTED] writes:
if there has ever been a working LinuxPPC port (I don't know about any)
No, there has not been a working port to LinuxPPC, as far as I can see.
But the mailing list archives showed some mails from 2000 or 2001 from
someone who was thinking of
John Meacham [EMAIL PROTECTED] writes:
In Any case i made a prerelease of my modified version available at:
http://homer.netmar.com/~john/computer/haskell/jDrIFT/
but would like to somehow merge with the main development tree of this
tool, if one exists, if it doesnt look like that will
Wolfgang Jeltsch [EMAIL PROTECTED] writes:
I have some questions regarding the hierarchical module system now
implemented in Hugs as well as in GHC.
... and nhc98...
Currently it is possible to have a module A1.A2. ... .Am and a module
A1.A2. ... .Am. ... .An (n m) at the same time. The
$ ghc -fglasgow-exts -package lang -c -o Floats.o Floats.hs
In file included from
/export/home/malcolm/lib/ghc-5.02.2/include/Stg.h:206,
from /tmp/ghc21103.hc:1:
/export/home/malcolm/lib/ghc-5.02.2/include/PrimOps.h:976:
parse error before
The binary package of ghc-5.02.2 for sparc-sun-solaris2.7 seems to have
a small problem on my Solaris 2.6 machine. The compiler works fine
on most source modules, but it has trouble with one using the FFI.
A previous version of the compiler (4.08.2) worked fine on the same
module, and 5.02.2 on
José Romildo Malaquias [EMAIL PROTECTED] writes:
I would like to use muttable arrays in Haskell 98, with the GHC
_and_ NHC98 compilers. By muttable arrays I mean arrays with
in-place updates, as with the MArray arrays (which are not
Haskell 98 conformant) found in GHC. Is such array
hat-1.12, nhc98-1.12, and hmake-3.02
We are pleased to announce a new release of Hat, the Haskell tracing
(an debugging) system, together with supporting releases of the
Antony,
But unfortunately the Makefile.inc used to build hmake does some tricky
$(PWD) shenanigans that have nothing to do with configure, and then
passes the resulting path to ghc. Unfortunately, $(PWD) returns
Cygwin-style paths, and I failed to find a good workaround for this in
the
But what's the best way to manage this? Suppose you have
several modules, some of which need no preprocessor, while others need
to be preprocessed in different ways (ignoring multiple extensions --
too hard). I've been doing this by using different filename extensions
to distinguish them,
The latest version of hmake (3.01) has support for calling a
preprocessor based on the filename extension,
That's nice. Is it user-configurable? (i.e. without changing the compiler)
At the moment, the list of preprocessors is coded into hmake (not
the compiler). The main reason for not
Being able to specify the extensions required in a source file would be very
useful in a range of cases. Very often helping other people with Haskell (in
the case where they are trying to use someone else's module) is just a
question of saying try '-98' or try '-fglasgow-exts' or whatever.
Can't we require that a local definition be more indented than the
enclosing definition?
It is required in Haskell'98. You have stumbled on a bug in Hugs,
which you should report to the maintainers.
Regards,
Malcolm
___
Haskell mailing list
The problem here is that, within the `while' you are calling `isEOF'
before printing the prompt. IsEOF cannot report False until you
actually type the first character! If you type nothing, then it the
EOF condition could indeed be true, so no more actions can happen until
the condition is
I think that what you want here are 'smart constructors', i.e. functions
that create a new value but also perform other initializations.
..
If you define Tree and the smart constructors in a separate module and then
only export the type Tree (*not* the real constructors!),
But then I
I see no reason to disallow duplicates at the subordinate level if
they are permitted otherwise.
Well, disallowing duplicates here may improve error detection,
catching some unintentional typos and cut-and-paste errors.
By the same argument, we should disallow *all* duplicates, for
disallowing all duplicates seems tricky. is there a duplicate here:
module A (f, module M) where
import M(f)
Yes, there is a duplicate here. Strangely enough, hbc does not report
this as an error, even though it refuses to compile the following
very similar case:
module A (f, module A)
I argued that (Num a, Ord a) makes most sense to me.
You argued that (Integral a) was a conscious choice (something I
don't remember but I'm sure you're right), and is the right one anyway.
I'd be interested to know what others think. If there's any doubt,
we'll stay with Integral.
My
Has anyone done any XML parsing into haskell data structures? I'd
like to do some of this and don't like reduplicating effort.
The HaXml package has a tool `DtdToHaskell' that automatically converts
an XML DTD into a set of Haskell datatypes, together with the necessary
instances of an
I have built RPM packages for hmake-3.00, which are available at
http://uber.com.br/romildo/
The packages were built in a RedHat Linux 7.2 system.
Romildo's RPMs are now also available from hmake-HQ at
http://www.cs.york.ac.uk/fp/hmake/
ftp://ftp.cs.york.ac.uk/haskell/hmake/
hmake-3.00
--
We are pleased to announce the release of version 3.00 of 'hmake',
the Haskell program compilation manager.
http://www.cs.york.ac.uk/fp/hmake/
Features of hmake:
* compiler independent
* aware of .hi files in
This program:
module Main where
f = map (++a++b)
g = map (a++b++)
main = do print (f [x,y,z])
print (g [x,y,z])
gives the following error messages with ghc (versions 4.08.2 and 5.02):
plusplus.hs:3:
The operator `++' [infixr 5] of a section
Punning was removed from Haskell some while ago,
I believe when Haskell 98 was fixed in Feb 1999.
Indeed. However, due to popular demand, the feature was retained as
an extension in Hugs (turn on with the -98 option) and nhc98 (turn
on/off with the -puns/-nopuns options).
Regards,
ICFP 2002: International Conference on Functional Programming
Pittsburgh, 3--5 October 2002
The email announcement says 3-5 Oct, the webpage says 4-6 Oct.
Which are the true dates for ICFP?
Regards,
Malcolm
___
Haskell mailing list
[EMAIL
If I have..
data Path = L Path | R Path | T
paths = T : branch paths
branch (p:ps) = L p : R p : branch ps
This will be a CAF which can never be garbage collected, but
may grow indefinitely large as it gets reduced. Correct?
Any decent compiler will garbage collect the
data Path = L Path | R Path | T
paths = T : branch paths
branch (p:ps) = L p : R p : branch ps
This code was originally written in Clean, and the Clean designers
addressed this problem by allowing the programmer to distinguish
between constants and functions with no
You can't rely on adding dummy arguments to cause re-evaluation:
full-laziness (enabled when optimisation is on in GHC) will do the
opposite transformation.
Well in this case, you may find it harder to claim that the full
laziness transformation constitutes an `optimisation'. Maybe the
GHC
As you say, we can't change the type of showInt. I suppose we could
add:
showIntAtBase :: Integral a=20
=3D a-- base
- (a - Char) -- digit to char
- a-- number to show.
- ShowS
showOct, showHex :: Integral a =3D
There is something strange about the Haskell'98 Numeric library,
which I think could be considered a bug of sorts. There are functions
readDec, readOct, readHex :: (Integral a) = ReadS a
which read an integer from a string in base 10, 8, or 16, but there
are no corresponding show functions
| Since the Report states that the derived Show instances only insert
| parentheses where needed and that the derived Read instances can
| read the output produced by show, I would suggest to change all
| occurences of {showsPrec 10,readsPrec 10} to {showsPrec 0,readsPrec 0}
| in the
Since the Report states that the derived Show instances only insert
parentheses where needed and that the derived Read instances can
read the output produced by show, I would suggest to change all
occurences of {showsPrec 10,readsPrec 10} to {showsPrec 0,readsPrec 0}
in the above code.
That
Ratio defines
data (Integral a) = Ratio a = !a :% !a
which GHC seems to implement as specified, but nhc and hugs seem to use
data (Integral a) = Ratio a = a :% a
Does this not have different strictness properties?
It does. In nhc98's case, this is simply an oversight - i.e. a
Someone might want to take a look at the web page
http://www.haskell.org/ghc/download_old.html
and update it. Under 'Distributions', it claims that the latest
binary version of ghc available for any platform is 4.08.
Regards,
Malcolm
___
Is there an easy way to get 'ghc' or one of the other binaries to tell me
where the GHC installation directory is? I want to put the includes
directory in a gcc -I flag in my makefile.
For ghc = 5.00, but not on Windows:
#!/bin/sh
GHCDIR=`grep '^libdir' ${whichGHC} | head -1 | sed
chars =
foo
bar
You *are* violating the Haskell 98 spec, I'm afraid :)
No he isn't. At least, I can't find anything in the Report which
disallows literal newline characters in a string literal.
Oh, hold on. The production
string - { graphic_|` | space | escape | gap }
does
On the contrary I'm glad to see that the Haskell standard is so sensible.
I edit Haskell using XEmacs, and I don't want to have to do an octal
or hexadecimal dump of my source code to determine whether a string
contains a tab, newline, return, line feed, Unicode en-space (there are
several
I just thought I should add the results for hbc and nhc98 to this
enumeration of woes, to further illustrate the difficulties.
i :: Int
i = 0x7fff
i_plus_1 = i+1
-- ghc : -2147483648
-- hugs: -2147483648
-- nhc98: -2147483648
-- hbc: -2147483648
i_succ = succ i
--
| | (Actually, ghc is `wrong': hbc, hugs and nhc98 match the Report's
| | specification here: succ = toEnum . (+1) . fromEnum
| | This is confirmed by the description of the semantics in
| | section 3.10.)
|
| Lies, all lies. The default methods do not constitute a specification;
| in this
Hat 1.10 and nhc98 1.10
---
http://www.cs.york.ac.uk/fp/nhc98/
We are pleased to announce a new release 1.10 of Hat (the Haskell
Tracing system), and the nhc98 compiler. This is a bugfix release.
Its main feature is that
Simon Marlow [EMAIL PROTECTED] writes:
Well, in Haskell each character of the string takes 20 bytes: 12 bytes
for the list cell, and 8 bytes for the character itself
Ahem, _Haskell_ mandates no such thing. Perhaps you are talking
about a specific implementation? ghc probably.
Isn't it
In the current Report draft, the idea is that a hiding clause hides
both qualified and unqualified names
import Foo hiding( f )
hides Foo.f as well as unqualified f.
I think we all agreed that is a good change. But we (ahem, I) forgot
to propagate that change to the sections
The lexical syntax says that
10e3
means
10 e3
(i.e. two lexemes). I don't like this choice, and it could be fixed
in the Revised H98 report.
What is the likelihood of anyone *intentionally* writing an integer
abutted directly with a varid, followed directly by another
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