Gpc

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5400 discussions

Passing strings by value
by Kevin A. Foss 02 Feb '98

02 Feb '98

Hello, Is there something special that needs to be done to pass strings by value? The code below seems to mangle any strings I pass pretty well, when I would assume it would only mangle the local copy in the function: program testfunc(output); var aline : string (20) VALUE 'foo|bar|baz'; function countfields(line : string; axis : char) : integer; var count : integer VALUE 0; begin if length(line) > 0 then count := 1; while index(line, axis) > 0 do begin count := count + 1; line := substr(line, index(line, axis) + 1); end; countfields := count; end; begin writeln(aline); writeln(countfields(aline, '|'), ' field(s)'); writeln(aline); end. Under either 971001, or the 980106 alpha I get the following output: foo|bar|baz 3 field(s) baz which is what I would expect if countfields() accepted 'line' as a VARiable parameter. -Kevin -- Kevin A. Foss --- kfoss(a)mint.net --

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gpc installation problems on Digital Unix
by Gary Narayanan USG 02 Feb '98

02 Feb '98

Ladies and Gentlemen, I installed gpc-2.0 on Digital Unix (Alpha) V4.0A and I saw the following problems. 1. The compiler (I think is gcc 2.7.2.1 compiles this and not /usr/bin/cc) could not compile the file "gpc-decl.c" . The error was in line 2962 TREE_CODE (TREE_VALUE (tail)) = code; The compile said it was not an l-value. I worked around by eliminating the conditional, and typing return NULL_TREE; for both cases. Will this break the compiler functionality? 2. The file "gpc-module.c" has several '#define' statements and not starting at first character of the line. The link editor failed because of this, eg ld: unreolved STORE_SPECIAL 3. The rts/Makefile generated needed some editiong, ie adding a "../" for the gcc path name. Regards Gary Narayanan gsn(a)zk3.dec.com

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Pointer to Method...
by Orlando Llanes 02 Feb '98

02 Feb '98

Ok, this is a tricky one. I need to know how to get a pointer to a method from an object. I've tried a million and one different things, but was not able to do so. Is it even possible? The reason I need this is because I'm toying with the idea of making an object method an interrupt routine. Thanks in advance! See ya! Orlando Llanes "Meine Damen und Herren, Elvis hat soeben das Gebaeude verlassen!" "Look out fo' flyeeng feet" O__/ a010111t(a)bc.seflin.org \/|____. O <__. \/\> / \ ____________|___\______ http://ourworld.compuserve.com/homepages/Monkey414

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Re: Char type...
by Peter Gerwinski 26 Jan '98

26 Jan '98

According to Orlando Llanes: > Is there a Char type that is guaranteed to be 16-bits from now until > infinity? > Is there a Char type that is guaranteed to be 8-bits from now until > infinity? > Does GPC/DJGPP support the Unicode character type? No(t yet). You can work around this by using 8-bit and 16-bit integers: Type Char8bit = Cardinal ( 8 ); Char16bit = Cardinal ( 16 ); These are guaranteed to be 8/16-bit from now until "infinity" - whenever that will be. ;-) Some "wide char" (Unicode) fragments already exist in GPC. If somebody wants to take part in implementing such things (and others), be welcome. Peter -- Peter Gerwinski, Essen, Germany, free physicist and programmer Maintainer GNU Pascal - http://home.pages.de/~GNU-Pascal/ - 1 Oct 1997 PGP key fingerprint: AC 6C 94 45 BE 28 A4 96 0E CC E9 12 47 25 82 75 Fight the SPAM! - http://maps.vix.com/

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Re: ASMName...
by Peter Gerwinski 26 Jan '98

26 Jan '98

According to Orlando Llanes: > I was wondering if there was any overhead in calling a function > declared in the GPC with the ASMName. There isn't. Nor there is with the `C' directive. > [...] > Would PFunc run faster than CFunc? No. Exactly the same. > The reason I ask is because I remember Peter saying a long time ago > that the C; keyword added overhead to a function and I wonder if the same > is true for the ASMNames keyword. There is no overhead in functions declared with any of these directives. However there *is* overhead in the compiler who has to deal with all those different directives - and in the programmer who has to remember them. ;-) Peter -- Peter Gerwinski, Essen, Germany, free physicist and programmer Maintainer GNU Pascal - http://home.pages.de/~GNU-Pascal/ - 1 Oct 1997 PGP key fingerprint: AC 6C 94 45 BE 28 A4 96 0E CC E9 12 47 25 82 75 Fight the SPAM! - http://maps.vix.com/

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ASMName...
by Orlando Llanes 26 Jan '98

26 Jan '98

I was wondering if there was any overhead in calling a function declared in the GPC with the ASMName. In other words, if I had the following code... ---------- DJGPP: ---------- void cfunc() { // Do something } ---------- GPC: ---------- PROCEDURE CFunc; ASMName 'cfunc'; PROCEDURE PFunc; BEGIN { Do something } END; ...and invoked them as follows... BEGIN CFunc; PFunc; END; Would PFunc run faster than CFunc? The reason I ask is because I remember Peter saying a long time ago that the C; keyword added overhead to a function and I wonder if the same is true for the ASMNames keyword. Thanks in advance! See ya! Orlando Llanes "Hey, we all did the drug thing, we all did the money thing, and eventually you find out that none of that stuff fixes anything, and we have nowhere else to go except to evolve spiritually and intellectually" -- Meredith Brooks "Look out fo' flyeeng feet" O__/ a010111t(a)bc.seflin.org \/|____. O <__. \/\> / \ ____________|___\______ http://ourworld.compuserve.com/homepages/Monkey414

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Char type...
by Orlando Llanes 26 Jan '98

26 Jan '98

I have a couple of Char type questions: Is there a Char type that is guaranteed to be 16-bits from now until infinity? Is there a Char type that is guaranteed to be 8-bits from now until infinity? Does GPC/DJGPP support the Unicode character type? Thanks in advance! See ya! Orlando Llanes "Hey, we all did the drug thing, we all did the money thing, and eventually you find out that none of that stuff fixes anything, and we have nowhere else to go except to evolve spiritually and intellectually" -- Meredith Brooks "Look out fo' flyeeng feet" O__/ a010111t(a)bc.seflin.org \/|____. O <__. \/\> / \ ____________|___\______ http://ourworld.compuserve.com/homepages/Monkey414

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Re: coff file structure
by Peter Gerwinski 26 Jan '98

26 Jan '98

Hi, Omar! Hi, all! According to Omar Abu Al-Haija: > Another question could you please tell me where I can get more > information about coff files , I would like to know more about the > structure of these files and i would like to look on the differance > between coff and MS obj files. Section 17.5 of the DJGPP FAQ list has some pointers that might help you. In particular, they mention a conversion tool: `OBJ2COFF' is available from the Oulu repository, e.g. ftp://x2ftp.oulu.fi/pub/msdos/programming/convert/o2cv10.arj and from DJ Delorie's ftp server, e.g. ftp://ftp.delorie.com/pub/djgpp/contrib/o2cv06.arj. If that tools comes with source (I don't know), you can probably extract anything about COFF from it. > Ps. this time I put subject , hope that could make beter gnu pascal :-) Thanks! :-) Yours, Peter -- Peter Gerwinski, Essen, Germany, free physicist and programmer Maintainer GNU Pascal - http://home.pages.de/~GNU-Pascal/ - 1 Oct 1997 PGP key fingerprint: AC 6C 94 45 BE 28 A4 96 0E CC E9 12 47 25 82 75 Fight the SPAM! - http://maps.vix.com/

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coff file structure
by OHMH＠nets.com.jo 25 Jan '98

25 Jan '98

Thanks Peter Another question could you please tell me where I can get more information about coff files , I would like to know more about the structure of these files and i would like to look on the differance between coff and MS obj files. Ps. this time I put subject , hope that could make beter gnu pascal :-) Yours :omer ___________________________________________ Omer H. Abu Elhaijaa , Ohmh(a)nets.com.jo system programing , Games development pascal / asm , OOP . Flash Team : Games Development Team I beleave that programming is a way of thinking . well is hacking a way of programming ?? __________________________________________ peter(a)agnes.dida.physik.uni-essen.de,Internet writes: >>>According to Omar Abu Al-Haija: >>>>> >>>>> What is the latest Versions from GCC, GPC and where to get them . > >>>>GCC: gcc-2.8.0, available at any GNU mirror. > >>>>GPC: The latest official release is gpc-2.0, available from > >>>> ftp://kampi.hut.fi/jtv/gnu-pascal/ >>>> ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/ > >>>>The latest beta is gpc-971001, available from > >>>> ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/beta/ > >>>>The latest alpha is gpc-980106, available (in source code only) from > >>>> ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/alpha/ > >>>>Hope this helps, > >>>> Peter >>>>-- >>>> Peter Gerwinski, Essen, Germany, free physicist and programmer >>>>Maintainer GNU Pascal - http://home.pages.de/~GNU-Pascal/ - 1 Oct 1997 >>>>PGP key fingerprint: AC 6C 94 45 BE 28 A4 96 0E CC E9 12 47 25 82 75 >>>> Fight the SPAM! - http://maps.vix.com/ > >

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Re: your mail without subject :-(
by Peter Gerwinski 24 Jan '98

24 Jan '98

According to Omar Abu Al-Haija: > > What is the latest Versions from GCC, GPC and where to get them . GCC: gcc-2.8.0, available at any GNU mirror. GPC: The latest official release is gpc-2.0, available from ftp://kampi.hut.fi/jtv/gnu-pascal/ ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/ The latest beta is gpc-971001, available from ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/beta/ The latest alpha is gpc-980106, available (in source code only) from ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/alpha/ Hope this helps, Peter -- Peter Gerwinski, Essen, Germany, free physicist and programmer Maintainer GNU Pascal - http://home.pages.de/~GNU-Pascal/ - 1 Oct 1997 PGP key fingerprint: AC 6C 94 45 BE 28 A4 96 0E CC E9 12 47 25 82 75 Fight the SPAM! - http://maps.vix.com/

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