Gpc April 1997

gpc@gnu.de

24 participants
111 discussions

Files
by berend＠beard.nest.nl 01 Feb '02

01 Feb '02

* Moved (from: gpc) by Berend de Boer using timEd 1.10.b3+. Peter Gerwinski wrote in a message to Berend de Boer: PG> I tried to use Extended Pascal "binding" to assign a file PG> variable to an external -- existing -- file. I just copied PG> the "Assign" pro- cedure by Berend as published in PG> borland2ep.doc. It does not always work: I often get a PG> runtime error saying that the file did not exist. If you can repeat it, compile with another Extended Pascal compiler, for … [View More]

4 3

What is standard, and what isn't?
by Peter Gerwinski 01 May '97

01 May '97

Hello, perhaps somebody can help to clarify the following two questions: 1) Is the comparision with `=' or `<>' of structured variables okay in ISO Pascal? ISO 10206 6.8.3.5 only says that the types to be compared must be compatible. If not, this might be a reasonable extension (already offered by some compilers, *not* including Borland Pascal;). 2) In GPC strings, the schema discriminant "Capacity" is accessible as a "record field" of the string. Is this okay by ISO … [View More]

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exit; ????
by skye 01 May '97

01 May '97

Is Exit not included in GPC? i.e. program test; procedure t1(a:integer); begin writeln('hello1'); if a = 1 then exit; writeln('hello2'); end; begin writeln('hello'); t1(1); t1(0); writeln('hello3'); end. should produce: hello hello1 hello1 hello2 hello3 but I get Undefined Indentifier 'Exit' I tried using return; and that works. I posted this question to the comp.lang.pascal NG and had someone from Borland tell me that Exit should do the trick (I didn't say I wasn't using TP tho). … [View More]

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Re^3: Legal Change in GPC ?
by Peter Gerwinski 30 Apr '97

30 Apr '97

According to Christian Wendt: > :-) I do the work and get common to the RTS C source (which is very vell > readable!) - and then learn all the work has been done... Oh - sorry! Since an improved BPcompat package for DOS (DJGPP) will be released soon, what about facing Linux instead? Sven's BGI2GRX (Graph) Unit runs under Linux, but we have no CRT yet ... > PG>available in the `contrib' subdirectory of the GPC distribution. > BPCompat.pas is in my contrib subdirectory... but … [View More]

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problem with gpclib.a (alpha-version)...
by A.ECKLEDER＠CHATEAU.cl.sub.de 30 Apr '97

30 Apr '97

A.Eckleder(a)chateau.cl.sub.de / oh no,some e-mail ... by ME!!! To: GPC(a)HUT.FI (Gpc) ---------------------------------------------------------------------- ...i've got some problem with the library file of the actual (?!?) alphaversion of gnu-pascal... obviousely there's some problem in string-management (gpc2.0 libs do well) here's some sample code: type normstr=string[255]; {also tested with different string lengths} function strng(z:real):normStr; {convert number to string} var … [View More]

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Re: What is standard, and what isn't?
by Berend de Boer 30 Apr '97

30 Apr '97

Peter Gerwinski wrote: >Not too difficult: Integer arrays can be treated by a simple byte >compare; for string arrays the compiler must generate a loop. I thought that was a lot of work, but it seems I was wrong :-) >> Certainly: see the examples in 6.8.4 > >Thanks a lot! I didn't find that. Why wasn't there a single word >about >this in 6.4.7, 6.4.8??? No idea. Just like a lot of other topics treatment is fairly sparse. We need to have everything in one place. … [View More]

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Re: Short strings (Was: Modifying string length?)
by Peter Gerwinski 30 Apr '97

30 Apr '97

According to Stephen Lindholm: > [`ShortStr' or `ShortString'?] > How about supporting both? Since PEP and Delphi agree that this is called `ShortString', I conclude that we should use that, too. However it will take some time until it will be implemented: All string types must be compatible with each other in assignments, comparisions, etc., and all string routines will have to accept all sorts of strings. (Well ... at least some of them will accept all sorts; others might be okay to … [View More]

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Re: What is standard, and what isn't?
by Peter Gerwinski 30 Apr '97

30 Apr '97

According to Berend de Boer: > If you want something 'difficult' to do , implement integer and string > value arrays :-) Not too difficult: Integer arrays can be treated by a simple byte compare; for string arrays the compiler must generate a loop. This can be done for records, too: The compiler can do a loop through the fields of the record. (User programs cannot do that. :-P) > Certainly: see the examples in 6.8.4 Thanks a lot! I didn't find that. Why wasn't there a single … [View More]

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Re: Modifying string length?
by Peter Gerwinski 30 Apr '97

30 Apr '97

According to Frank Heckenbach: > > Hmmm... well, I could not see the effect. I wrote the following test program: > [...] > I compiled it with "-O3 -S". The resulting code contained two calls to > _memcpy. [...] Ah - I was wrong, sorry. The string addition is optimized, but it is done on a temporary variable, and the assignment to that guy is *not* optimized. Maybe this can be changed ... I will have a look at that. (But not now.) (* By the way: Good news for all friends of … [View More]

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Re: Short strings (Was: Modifying string length?)
by The African Chief 30 Apr '97

30 Apr '97

On Wed, 30 Apr 1997 00:41:07 +0200 (MET DST) Peter Gerwinski <peter(a)agnes.dida.physik.uni-essen.de> wrote: >According to The African Chief: >> According to Frank Heckenbach: >> >255 chars max length are sometimes not enough. >> But you can use normal GPC strings for that. > >Just my point: For applications where you need looooong strings, GPC's ><=2GB strings with 8 bytes of overhead are perfect. In those cases >where you must save space, 255 … [View More]

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Gpc April 1997