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Groups > comp.lang.c > #140350

Re: Distributing C as headers.

From "Pascal J. Bourguignon" <pjb@informatimago.com>
Newsgroups comp.lang.c
Subject Re: Distributing C as headers.
Date 2019-01-28 12:22 +0100
Organization Informatimago
Message-ID <m2tvhtc9i8.fsf@despina.home> (permalink)
References (16 earlier) <OTr3E.154256$592.32298@fx16.am4> <87bm41vb3k.fsf@bsb.me.uk> <10t3E.125278$9A2.93679@fx09.am4> <8736pdv80w.fsf@bsb.me.uk> <c_A3E.214950$ns2.7633@fx26.am4>

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Bart <bc@freeuk.com> writes:

> On 28/01/2019 02:19, Ben Bacarisse wrote:
>> Bart <bc@freeuk.com> writes:
>
>>> Thanks. I think the point was that you couldn't make a Pascal program crash, as the interfaces are more robust. However if I modify your example to:
>
>>>     procedure string_copy(var dst : string; src : string);
>>>     begin
>>>        string_copy(dst,src)
>>>     end;
>
>>> then run via FPC it gives me:
>>>
>>>   Runtime error 202 at $0040142E
>
>> I went and looked.  James was talking about pointers so a more direct
>> example might be this:
>>
>> program copystring (output);
>> procedure string_copy(var dst : string; src : string);
>> begin
>>     dst := src
>> end;
>> var dp : ^string;
>> begin
>>     string_copy(dp^, 'Hello World');
>>     write(dp^)
>> end.
>
> Yes, that crashes too (also with Runtime error, so it might be
> detecting and trapping such things, making it a softer crash).
>
> Also in this case the compiler warns about the uninitialised dp.

Of course, you can write fortran code in any programming language…

-- 
__Pascal J. Bourguignon__
http://www.informatimago.com

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Thread

Distributing C as headers. Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-01-25 07:23 -0800
  Re: Distributing C as headers. Thiago Adams <thiago.adams@gmail.com> - 2019-01-25 07:31 -0800
    Re: Distributing C as headers. Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-01-25 07:33 -0800
      Re: Distributing C as headers. Mateusz Viste <mateusz@wont.tell> - 2019-01-25 15:42 +0000
      Re: Distributing C as headers. gazelle@shell.xmission.com (Kenny McCormack) - 2019-01-25 17:40 +0000
        Re: Distributing C as headers. Thiago Adams <thiago.adams@gmail.com> - 2019-01-25 09:59 -0800
          Re: Distributing C as headers. Thiago Adams <thiago.adams@gmail.com> - 2019-01-25 10:01 -0800
          Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-25 22:17 +0100
            Re: Distributing C as headers. Bart <bc@freeuk.com> - 2019-01-25 21:33 +0000
        Re: Distributing C as headers. Mateusz Viste <mateusz@wont.tell> - 2019-01-25 18:07 +0000
          Re: Distributing C as headers. gazelle@shell.xmission.com (Kenny McCormack) - 2019-01-25 18:46 +0000
            Re: Distributing C as headers. Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-01-25 19:43 -0700
              Re: Distributing C as headers. Mateusz Viste <mateusz@wont.tell> - 2019-01-26 08:13 +0000
                Re: Distributing C as headers. Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-01-26 13:39 -0700
                Re: Distributing C as headers. Mateusz Viste <mateusz@wont.tell> - 2019-01-26 21:00 +0000
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-26 22:29 +0100
                Re: Distributing C as headers. nobody@example.org (Scott) - 2019-01-27 04:56 +0000
                Re: Distributing C as headers. Dan Purgert <dan@djph.net> - 2019-01-27 11:36 +0000
                Re: Distributing C as headers. Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-02-25 12:26 -0800
                Re: Distributing C as headers. "Jason C. McDonald" <indeliblebluepen@gmail.com> - 2019-02-28 19:52 +0000
                Re: Distributing C as headers. Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2019-02-28 15:04 -0500
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-02-28 21:40 +0100
                Re: Distributing C as headers. James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-02-28 13:57 -0800
                Re: Distributing C as headers. Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-01-27 13:33 +0000
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-27 15:06 +0100
                Re: Distributing C as headers. luser droog <luser.droog@gmail.com> - 2019-01-26 13:01 -0800
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-26 22:30 +0100
                Re: Distributing C as headers. Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-02-02 09:27 +0000
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-26 22:23 +0100
                Re: Distributing C as headers. Keith Thompson <kst-u@mib.org> - 2019-01-26 13:39 -0800
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-26 22:47 +0100
                Re: Distributing C as headers. Keith Thompson <kst-u@mib.org> - 2019-01-26 14:33 -0800
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-26 23:37 +0100
                Re: Distributing C as headers. Keith Thompson <kst-u@mib.org> - 2019-01-26 15:09 -0800
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-27 15:11 +0100
                Re: Distributing C as headers. James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-01-27 16:12 -0500
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-28 00:51 +0100
                Re: Distributing C as headers. Bart <bc@freeuk.com> - 2019-01-28 00:06 +0000
                Re: Distributing C as headers. Bart <bc@freeuk.com> - 2019-01-28 00:18 +0000
                Re: Distributing C as headers. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-01-28 01:12 +0000
                Re: Distributing C as headers. Bart <bc@freeuk.com> - 2019-01-28 01:35 +0000
                Re: Distributing C as headers. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-01-28 02:19 +0000
                Re: Distributing C as headers. Bart <bc@freeuk.com> - 2019-01-28 10:40 +0000
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-28 12:22 +0100
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-28 12:21 +0100
                Re: Distributing C as headers. Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-01-28 04:03 -0800
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-28 13:23 +0100
                Re: Distributing C as headers. Keith Thompson <kst-u@mib.org> - 2019-01-28 11:16 -0800
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-28 21:08 +0100
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-28 01:19 +0100
                Re: Distributing C as headers. Keith Thompson <kst-u@mib.org> - 2019-01-27 16:59 -0800
                Re: Distributing C as headers. Keith Thompson <kst-u@mib.org> - 2019-01-27 16:33 -0800
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-28 01:35 +0100
                Re: Distributing C as headers. Keith Thompson <kst-u@mib.org> - 2019-01-27 17:20 -0800
                Re: Distributing C as headers. James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-01-27 22:50 -0500
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-28 06:52 +0100
                Re: Distributing C as headers. Bart <bc@freeuk.com> - 2019-01-28 10:55 +0000
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-28 12:26 +0100
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-28 13:27 +0100
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-28 13:26 +0100
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-28 14:03 +0100
                Re: Distributing C as headers. Keith Thompson <kst-u@mib.org> - 2019-01-28 11:12 -0800
                Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-28 12:25 +0100
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-28 13:33 +0100
                Re: Distributing C as headers. Keith Thompson <kst-u@mib.org> - 2019-01-28 11:20 -0800
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-28 21:11 +0100
                Re: Distributing C as headers. scott@slp53.sl.home (Scott Lurndal) - 2019-01-28 21:12 +0000
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-28 23:06 +0100
                Re: Distributing C as headers. David Brown <david.brown@hesbynett.no> - 2019-01-27 15:02 +0100
    Re: Distributing C as headers. "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-25 17:51 +0100
    Re: Distributing C as headers. fir <profesor.fir@gmail.com> - 2019-01-25 14:28 -0800

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