Poly/ML

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698 discussions

Tracing function calls
by pocm＠netvisao.pt 22 Mar '04

22 Mar '04

Hi, Is there anyway in PolyML to trace function calls? Cheers, -- Paulo J. Matos : pocm [_at_] mega . ist . utl . pt Instituto Superior Tecnico - Lisbon Computer and Software Eng. - A.I. - > http://mega.ist.utl.pt/~pocm --- -> God had a deadline... So, he wrote it all in Lisp!

2 1

Extending stack limit
by pocm＠netvisao.pt 22 Mar '04

22 Mar '04

Hi, While playing with polyml limits I executed the function squares from Paulsons Book: fun squares r = let fun between (x, y) = (* all pair between x and y*) let val diff = r - x*x fun above y = (* all pairs above y*) if y>x then [] else if y*y < diff then above (y + 1) else if y*y = diff then (x, y) :: between(x-1, y+1) else (*y*y > diff*) between(x-1, y) in above y end; val firstx = floor(Math.sqrt(real r)) in between(firstx, 0) end; And then I executed and I got: > squares 3092481270109283; Warning - Increasing stack from 147456 to 294912 bytes Warning - Increasing stack from 294912 to 589824 bytes Warning - Increasing stack from 589824 to 1179648 bytes Warning - Increasing stack from 1179648 to 2359296 bytes Warning - Increasing stack from 2359296 to 4718592 bytes Warning - Increasing stack from 4718592 to 9437184 bytes Warning - Increasing stack from 9437184 to 18874368 bytes Warning - Increasing stack from 18874368 to 37748736 bytes Warning - Increasing stack from 37748736 to 67108860 bytes Warning - Stack limit reached - interrupting process Exception- Interrupt raised I know it's a huge number, that was the idea. :D How can I increase the stack limit? Cheers, -- Paulo J. Matos : pocm [_at_] mega . ist . utl . pt Instituto Superior Tecnico - Lisbon Computer and Software Eng. - A.I. - > http://mega.ist.utl.pt/~pocm --- -> God had a deadline... So, he wrote it all in Lisp!

2 1

Is Isabelle/PolyML reentrant? (fwd)
by johnm＠cse.ogi.edu 22 Mar '04

22 Mar '04

Hi, I originally sent this post to the Isabelle theorem prover users' mailing list. Larry Paulson suggested I forward it to the Poly ML mailing list as well. In particular, does Poly ML support the ability for C functions to call ML functions, like SML/NJ does? Thanks! -john -- John Matthews Assistant Professor johnm(a)cse.ogi.edu OGI School of Science & Engineering (503) 748-1220 Oregon Health & Science University http://cse.ogi.edu/~johnm Beaverton, OR USA ---------- Forwarded message ---------- Date: Thu, 18 Mar 2004 15:58:41 -0800 (PST) From: John Matthews <johnm(a)cse.ogi.edu> To: isabelle-users(a)cl.cam.ac.uk Subject: Is Isabelle/PolyML reentrant? Tom Harke and I are interested in modifying an external oracle (verification tool) for Isabelle that is written in C. We would like the oracle to call back to selected Isabelle tactics while it is running, in order to deal with verification conditions that the external oracle can't handle itself. For this to work, the foreign function interface of the underlying SML compiler needs to allow foreign functions to call SML functions. I've found documentation for SML/NJ that indicates that this is possible, but nothing in the Poly ML documentation says that this can be done. Does this mean that I will be limited to running Isabelle on SML/NJ? If so, is support for running Isabelle on SML/NJ going to continue, or will future versions of Isabelle be limited to running only on Poly ML? Thanks, -john

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Is PolyML development dead?
by pocm＠netvisao.pt 17 Mar '04

17 Mar '04

Hi all, Is PolyML development dead? Is it safe to keep developing ML programs dependent on PolyML compiler? Cheers, -- Paulo J. Matos : pocm [_at_] mega . ist . utl . pt Instituto Superior Tecnico - Lisbon Computer and Software Eng. - A.I. - > http://mega.ist.utl.pt/~pocm --- -> God had a deadline... So, he wrote it all in Lisp!

6 12

Trying to work through the C FFI document
by pocm＠netvisao.pt 19 Dec '03

19 Dec '03

Hi all, I've created sample.c file with: int difference (int x, int y) { return x > y ? x - y: y - x; } Run gcc and ld: pmatos@euler sml_c_scheme $ gcc -c sample.c -o sample.o pmatos@euler sml_c_scheme $ ld -o sample.so sample.o ld: warning: cannot find entry symbol _start; defaulting to 0000000008048094 pmatos@euler sml_c_scheme $ Created an sml file with: fun get_sym lib sym = load_sym (load_lib lib) sym; Ran poly and evaluated the file and I got: Error: in '/tmp/sml6042nwv', line 1. Value or constructor (load_sym) has not been declared Found near load_sym(load_lib(lib))(sym) Error: in '/tmp/sml6042nwv', line 1. Value or constructor (load_lib) has not been declared Found near load_sym(load_lib(lib))(sym) Exception- Fail "Static errors (pass2)" raised Do I need to import something? What's wrong? Best regards, A Merry Christmas and a Happy New Year, -- Paulo J. Matos : pocm [_at_] mega . ist . utl . pt Instituto Superior Tecnico - Lisbon Computer and Software Eng. - A.I. - > http://mega.ist.utl.pt/~pocm --- -> God had a deadline... So, he wrote it all in Lisp!

2 1

Building PolyML from scratch
by pocm＠netvisao.pt 12 Dec '03

12 Dec '03

Hi all, I'm trying to build PolyML from scratch so I got the basis, driver and mlsource tarballs and unpacked driver, then unpacked basis and mlsource into driver, did the symlink for CodeCons and in the drive dir I ran: pmatos@euler driver $ ./poly ML_dbase < mlsource/BuildAll.sml Poly/ML RTS version I386-4.1.3 (15:24:34 Dec 10 2003) Copyright (c) 2002 CUTS and contributors. Running with heap parameters (h=10240K,ib=2048K,ip=100%,mb=6144K,mp=20%) Unable to open ML_dbase Can anybody please explain me what's the problem? I'm just trying to follow the instructions at: http://www.polyml.org/download.html Best regards, -- Paulo J. Matos : pocm [_at_] mega . ist . utl . pt Instituto Superior Tecnico - Lisbon Computer and Software Eng. - A.I. - > http://mega.ist.utl.pt/~pocm --- -> God had a deadline... So, he wrote it all in Lisp!

2 1

Printable Documentation
by pocm＠netvisao.pt 10 Dec '03

10 Dec '03

Hi all, Where can I find printable documentation (PS, PDF, DVI) for the Poly/ML compiler? Best regards, -- Paulo J. Matos : pocm [_at_] mega . ist . utl . pt Instituto Superior Tecnico - Lisbon Computer and Software Eng. - A.I. - > http://mega.ist.utl.pt/~pocm --- -> God had a deadline... So, he wrote it all in Lisp!

2 1

InternalError
by skalberg＠in.tum.de 06 Oct '03

06 Oct '03

Hi, I'm writing an interface between a proprietary model checker and the theorem prover Isabelle. For this, I need to parse some XML and I've been carrying around a record with different data I need for this. After trying to exend this record, I get InternalError: addFieldToGeneric: Not a labelled record raised while compiling when trying to load my XML parser. Unfortunately, I'm somewhat restrained when it comes to posting my code, but maybe someone can help me locate the problem anyway. The working version of the program had the functions fun update_typs {typs,thy} typs' = {typs=typs',thy=thy } fun update_thy {typs,thy} thy' = {typs=typs ,thy=thy'} and the main function was just fun import_file filename thy = let val body = body_of (parse_file filename) val typs = Symtab.update_new(("t",Free("t",timeT)),Symtab.empty) in #thy (parse_itl body {typs=typs,thy=thy}) end all code reachable from the function parse_itl only accesses/manipulates the record through functions #thy, #typs, update_typs, and update_thy, and this worked fine. I then needed an extra field, and thefore extended the record: fun update_typs {macs,typs,thy} typs' = {macs=macs,typs=typs',thy=thy } fun update_thy {macs,typs,thy} thy' = {macs=macs,typs=typs ,thy=thy'} fun import_file filename thy = let val body = body_of (parse_file filename) val typs = Symtab.update_new(("t",Free("t",timeT)),Symtab.empty) in #thy (parse_itl body {macs=Symtab.empty,typs=typs,thy=thy}) end with the rest of the program unchanged; This provokes the aforementioned "internal error". I've tried to isolate the problem, but so far without success. Any ideas? Best, - Sebastian -- http://www.mangust.dk/skalberg/

1 0

Xlib reference?
by bayard＠newsguy.com 06 Oct '03

06 Oct '03

The Motif document refers to a "PolyML for X Reference". Does it exist? -- Wer Schoenheit angeschaut mit Augen, hat dem Tode schon Anheim gegeben. Von Platen.

2 2

Some beginner's installation questions and comments
by john＠cs.york.ac.uk 30 Sep '03

30 Sep '03

1. I wish to install Poly/ML 4.1.3 on Linux. Since we don't usually install from RPMs, I first downloaded and unpacked the tar file of the binary release. With the files in a single directory, ./polyml worked fine: $ ls -l total 4152 -rwxr-xr-x 1 john staff 3653632 Sep 30 15:48 DB413Release lrwxrwxrwx 1 john staff 12 Sep 30 15:48 ML_dbase -> DB413Release -rwxr-xr-x 1 john staff 586235 Sep 30 2002 poly $ ./poly Poly/ML RTS version I386-4.1.3 (13:57:33 Sep 30 2002) Copyright (c) 2002 CUTS and contributors. Running with heap parameters (h=10240K,ib=2048K,ip=100%,mb=6144K,mp=20%) Mapping ./ML_dbase Poly/ML 4.1.3 Release > but when I tried placing the DB413Release database file (and its symbolic link ML_dbase) in a) /usr/local/lib/poly and b) /usr/lib/poly. (Experiment shows me that the search path is: .:/usr/local/lib/poly:/usr/lib/poly - it would be good if the web page http://www.polyml.org/download.html mentioned this under "Tar-ed archives".) I found that DB413Release had to be writeable (nothing to do with where I put it, of course, just the file permissions I used): $ ./poly Poly/ML RTS version I386-4.1.3 (13:57:33 Sep 30 2002) Copyright (c) 2002 CUTS and contributors. Running with heap parameters (h=10240K,ib=2048K,ip=100%,mb=6144K,mp=20%) WARNING:/usr/local/lib/poly/ML_dbase: Write permission denied. WARNING:/usr/local/lib/poly/ML_dbase: Opened for reading only. Mapping /usr/local/lib/poly/ML_dbase Poly/ML 4.1.3 Release > Does this matter? If so, if the database must be generally writeable, I think that this is rather unfortunate. 2. I'd really like to be able to put the database somewhere else. (We have the convention of placing installations of application software in version-specific sub-directories of /usr/local/pkg - e.g. PKG= /usr/local/pkg/polyml-$VERSION/, and any library files in ./lib.) In order to do this, I recompiled from source. One aspect of this wasn't immediately obvious to me. Perhaps the web page http://www.polyml.org/download.html should say "You may alter the DEFAULT_POLYPATH assignment in driver/configure to indicate where you will place the DB413Release file and the link ML_dbase." before "To build the poly binary download the driver, unpack it and then type: cd driver; ./configure; make Then, after "Then run poly ML_dbase < mlsource/BuildAll.sml", add: "Finally, copy DB413Release into the directory you have specified in the driver/configure file and link DB413Release to ML_dbase. The poly(1) command should locate it. There is no need to copy anything else from the source." (If the last is true!) 3. There are no Unix manual pages for Poly/ML, either for the command or for the library routines. I'd write some, but I think the developers will know best what to write. The Linux manual page man(7) explains the format best, I've found. John A. Murdie Department of Computer Science University of York

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Poly/ML