Gpc July 2000

gpc@gnu.de

35 participants
109 discussions

Re: gpc-20000707 djgpp native compilation
by Frank Heckenbach 18 Jul '00

18 Jul '00

Maurice Lombardi wrote: > same problem with gmp. The new gmp 3 is incompatible with the gmp 2.2 used by gpc for a stupid > reason: all names in the library have been prepended by a g. It is probably only necessary to update > accordingly the interface gmp.pas I'm aware of this problem, and working on it. It's a little tricky to do it in such a way that GMP 2.x will still work, but Peter and I have found a way how to do it. Frank -- Frank Heckenbach, frank(a)g-n-u.de, http://fjf.gnu.de/ GPC To-Do list, latest features, fixed bugs: http://agnes.dida.physik.uni-essen.de/~gnu-pascal/todo.html

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time stamp problem? timebug.p
by Tom Schneider 18 Jul '00

18 Jul '00

program timebug(output); (* Dr. Thomas D. Schneider National Cancer Institute Laboratory of Experimental and Computational Biology Frederick, Maryland 21702-1201 toms(a)ncifcrf.gov permanent email: toms(a)alum.mit.edu http://www.lecb.ncifcrf.gov/~toms/ According to: 8.255 TimeStamp http://agnes.dida.physik.uni-essen.de/~gnu-pascal/gpc_389.html#SEC389 and 7.10.8 Date And Time Routines http://agnes.dida.physik.uni-essen.de/~gnu-pascal/gpc_109.html#SEC109 and also http://agnes.dida.physik.uni-essen.de/~gnu-pascal/gpc_114.html#SEC114 (TIME HANDLING ROUTINES) but timebug.p: In function `pascal_main_program': timebug.p:57: TimeStamp record type parameter required What did I do wrong? *) const version = 1.00; (* of timebug.p 2000 July 17 origin 2000 Jul 17 *) type TimeStamp = {@@packed} record DateValid, TimeValid : Boolean; Year : Integer; Month : 1 .. 12; Day : 1 .. 31; DayOfWeek : 0 .. 6; { 0 means Sunday } Hour : 0 .. 23; Minute : 0 .. 59; Second : 0 .. 61; { to allow for leap seconds } MicroSecond : 0 .. 999999 end; var t: TimeStamp; begin GetTimeStamp(t); end.

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constant out of range
by Nathalie Jarosz 18 Jul '00

18 Jul '00

Hello everybody! As I already have had a problem with compilation under unix, I would like to know if this following error is something related to or something else: bathy.p: In function `Principal': bathy.p:977: constant out of range The line in question is: for ii:=1 to nsites do begin larves[ii]:=round(0.7*pop_max*fec*sex*ferti); and the constant: const r = 1000000; pop_max = 750000; max = 10000; sex = 0.5; fec = 1000000; ferti = 0.8; I don't really understand because if I run a little program only with these lines, it works, but not in the whole program. And, the whole program with lower values works. So, do I have to declare the constants with something else?... Or what?... Thanks a lot in advance, Nathalie ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

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Re: gpc-20000707 djgpp native compilation
by Frank Heckenbach 18 Jul '00

18 Jul '00

Couperin wrote: > I worry about those ancient files that I don't find in > gpc-20000707-i586-pc-msdosdjgpp-v203.zip : pc.exe, epc.exe, > bpc.exe, gpc-cpp.exe. Are they no more needed ? pc, epc, bpc have been dropped. They were just equivalent to `gpc --standard-pascal', `gpc --extended-pascal' and `gpc --borland-pascal', respectively, and these forms can be used now if necessary. gpc-cpp was renamed to gpcpp. > Previously, I had libcurso.a in the /lib directory and it seems > the Crt unit needed it. Is it the same now ? (I installed PDCurses > 2.4 but it doesn't produce a libcurso.a file) The file is called differently when PDCurses is built (curses.a or such I think). You can manually rename it (the `lib' prefix is so that it's found by the linker the normal way, and the `curso' rather than `curses' is to fit in 8+3). Same with libpanel.a (panel.a) probably. (In the PDCurses binary on agnes, the files are renamed already.) Frank -- Frank Heckenbach, frank(a)g-n-u.de, http://fjf.gnu.de/ GPC To-Do list, latest features, fixed bugs: http://agnes.dida.physik.uni-essen.de/~gnu-pascal/todo.html

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Re: gpc-20000707 djgpp native compilation
by Frank Heckenbach 18 Jul '00

18 Jul '00

Maurice Lombardi wrote: > It needs only very minor changes to the sources to work. They are contained in the two attached > diffs to apply to gpc-20000707 and gcc-2952 source directories. > - the gpc-20000707.diff corrects for an already reported problem with djgpp where pwd under > command.com respond c:\djgpp\ garbling ADD_RTS_PARENT_DIR in make-lang.in > > ! ADD_RTS_PARENT_DIR = sed -e 's,-B$[^/]$,-B../../\1,g;s,^$[^/][^ ]*$,../../\1,'` > ! ADD_RTS_PARENT_DIR = sed -e 's,-B$[^/][^:]$,-B../../\1,g;s,^$[^/][^:][^ ]*$,../../\1,'` I think this should be: ADD_RTS_PARENT_DIR = sed -e 's,-B$[^/][^:]$,-B../../\1,g;s,^$[^/][^ :]*$,../../\1,' But I'm wondering what the space is about, anyway (can the name of the compiler ever be a single character?), so I think the following is also ok: ADD_RTS_PARENT_DIR = sed -e 's,-B$[^/][^:]$,-B../../\1,g;s,^$[^/][^:]*$,../../\1,' Another problem is that your change would miss, e.g., `-B.' if it's at the end of the string. I think the easiest way to fix it is where ADD_RTS_PARENT_DIR is used: # The ' ' is there so, e.g., `-B.' will be replaced by ADD_RTS_PARENT_DIR RTS_COMPILERS = CC="`echo $(GCC_FOR_TARGET)' ' | $(ADD_RTS_PARENT_DIR)`" \ PC="`echo $(GPC_FOR_TARGET)' ' | $(ADD_RTS_PARENT_DIR)`" I'm changing this in the official sources now. The gcc patch is Peter's area. However, I'm skeptical about the manifest files since they would have to be updated often. I've written a script mkdjgppgpczip which automatically creates manifest etc. It's included in the script directory. It works for cross-building from Linux, might need adjustments for native DJGPP building (never tried that). > When running the demos I have found > > - gpc-in-c.h in the unit directory is not in a standard search directory for C header files, > I moved it manually (in the zip) into the %DJGPP%\lib\gcc-lib\djgpp\2.952\include Peter, can we just install it there by default, or do we need permission from the GCC developers? > - intfiledemo.pas does not work. Cannot rewrite a non assigned file under djgpp This should work (works for me in DosEmu). Does GetTempFileName return a valid name? program Foo; uses GPC; begin Writeln (GetTempFileName); Writeln (GetTempDirectory); CheckInOutRes end. Frank -- Frank Heckenbach, frank(a)g-n-u.de, http://fjf.gnu.de/ GPC To-Do list, latest features, fixed bugs: http://agnes.dida.physik.uni-essen.de/~gnu-pascal/todo.html

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Re: GPC FAQ bug (shr)
by Frank Heckenbach 17 Jul '00

17 Jul '00

Couperin wrote: > I discovered a small bug in GPC FAQ (Reference : shr) : > It give as an example : "a:= -127 shr 4; (* yields -7 *)" which is > false, it yields -8 ! > > I think we have to take care when manipulating bits of negative > integers. > A ShortInt with value-1 is coded 11111111b ! (-2 is 11111110b, -3 is > 11111101b and so on) > If the last bit is 1 (that means the number is negative), the 'shr' > operator replaces the right new bits by 1. > Examples (Considering ShortInt type (8 bits)) : > -127 (coded 10000001b) shr 4 yields -8 (coded 11111000b) > -1 (coded 11111111b) shr 1 yields -1 ! You're right, `shr 4' is different from `div 16' in that `div' rounds towards minus infinity while `div' round towards 0. I'm fixing it in the manual (the compiler's behaviour is correct), thanks for the hint. Frank -- Frank Heckenbach, frank(a)g-n-u.de, http://fjf.gnu.de/ GPC To-Do list, latest features, fixed bugs: http://agnes.dida.physik.uni-essen.de/~gnu-pascal/todo.html

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New user on gpc but 12 years with Tubo Pascal
by Jean-Philippe Combe 17 Jul '00

17 Jul '00

Hello, I would to work with Gnu Pascal on Linux Mandrake 7.02 I have downloaded several files : gpc-19990118-1.i386-pc-linux-gnu.rpm gpc-19990118.i586-pc-linux-gnulibc1.tar.gz gpc-19990118.tar.gz gpc-2.0.tar.gz gpc-extras-19990118-1.i386-pc-linux-gnu.rpm install-gpc-binary Can somebody say to me which file is the better to install ? (i know how to install them) Can somebody say to me what environment variables to define to access to the units because i have installes GPC on another compiler but i coudn't compile programs with the crt or other included units ? Thank you Jean-Philippe

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GPC FAQ bug (shr)
by f.couperin＠online.fr 17 Jul '00

17 Jul '00

I discovered a small bug in GPC FAQ (Reference : shr) : It give as an example : "a:= -127 shr 4; (* yields -7 *)" which is false, it yields -8 ! I think we have to take care when manipulating bits of negative integers. A ShortInt with value-1 is coded 11111111b ! (-2 is 11111110b, -3 is 11111101b and so on) If the last bit is 1 (that means the number is negative), the 'shr' operator replaces the right new bits by 1. Examples (Considering ShortInt type (8 bits)) : -127 (coded 10000001b) shr 4 yields -8 (coded 11111000b) -1 (coded 11111111b) shr 1 yields -1 ! -- "Couperin"

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Sun Drops Pascal?
by Tom Schneider 17 Jul '00

17 Jul '00

Dear GPC Folks: GPC is poised to become even more important. My Sysadmin found out the following: "I sent an online query using SunSolve about the status of the Pascal compiler. A Sun support person just called and said it was no longer a SUN product. He said its last ship date was 1997 and SUN's End-of-Service life policy says some support 4-5 years after last ship date." "SUN apparently has decided to drop the product and someone purchasing a new SUN may not be able to purchase the compiler from SUN. The SUN web site refers to the Edinburgh Portable Compilers and their EPC Pascal-E product. www.epc.co.uk/pce.html" "Best hope is probably the "gpc" effort." I agree with him ... Keep up the good work!! (I'll continue to help when I can.) Tom Dr. Thomas D. Schneider National Cancer Institute Laboratory of Experimental and Computational Biology Frederick, Maryland 21702-1201 toms(a)ncifcrf.gov permanent email: toms(a)alum.mit.edu http://www.lecb.ncifcrf.gov/~toms/

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Re: constant out of range
by Frank Heckenbach 17 Jul '00

17 Jul '00

Nathalie Jarosz wrote: > Hello everybody! > > As I already have had a problem with compilation under unix, I would like to > know if this following error is something related to or something else: > bathy.p: In function `Principal': > bathy.p:977: constant out of range > > The line in question is: > for ii:=1 to nsites do > begin > larves[ii]:=round(0.7*pop_max*fec*sex*ferti); > > and the constant: > const > r = 1000000; > pop_max = 750000; > max = 10000; > sex = 0.5; > fec = 1000000; > ferti = 0.8; > > I don't really understand because if I run a little program only with these > lines, it works, but not in the whole program. Please, when reporting bugs, always post *complete* test programs. Otherwise, we have incomplete information and can only guess. The following "little program only with these lines" gives the same error message on my system. That's correct since the value of the constant is larger than MaxInt (2^31-1), and therefore cannot be stored in an integer (if you're on a 64 bit system, it might work). If you declare larves as `LongInt' which has a larger range than `Integer' (-2^63 .. 2^63-1), it should work. If that's still not enough for you, you can look at the GMP unit... program foo; const r = 1000000; pop_max = 750000; max = 10000; sex = 0.5; fec = 1000000; ferti = 0.8; nsites = 10; var ii : Integer; larves : array [1 .. nsites] of Integer; begin for ii:=1 to nsites do larves[ii]:=round(0.7*pop_max*fec*sex*ferti); end. Frank -- Frank Heckenbach, frank(a)g-n-u.de, http://fjf.gnu.de/ GPC To-Do list, latest features, fixed bugs: http://agnes.dida.physik.uni-essen.de/~gnu-pascal/todo.html

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Gpc July 2000