I recently got a hold of the sources of Concurrent CP/M-86(circa 1984),
and the system builder, GENCPM is written in a K&R style C. Does GCC
support this syntax? If not, are there any K&R to ANSI converters out
there, or possibly a modern compiler supporting this syntax? Any help
is appreciated.
Thanks,
"msdos6"
Oct 21 '06
16  2170 
mkaras wrote:
Is posession of the source code legal?
Can you name a jurisdiction where copyright law speaks to possession (as
opposed to duplication and distribution?)
This is certainly not true in US Federal law, any state law, nor any
European country that I know of.
Perhaps legal advice can be considered topical for comp.lang.c, but only
*correct* legal advice should be tolerated.
"Keith Thompson" <ks***@mib.orgw rote in message
news:ln******** ****@nuthaus.mi b.org...
"msdos6" <ja************ ***@gmail.comwr ites:
>I recently got a hold of the sources of Concurrent CP/M-86(circa 1984),
and the system builder, GENCPM is written in a K&R style C. Does GCC
support this syntax? If not, are there any K&R to ANSI converters out
there, or possibly a modern compiler supporting this syntax? Any help
is appreciated.
The C90 standard is mostly backward-compatible with K&R (pre-ANSI) C,
so you *probably* won't have any serious problems.
(The bad news: any problems you do have are likely to be subtle ones.)
Given this response and if I were OP, I would strongly consider using the
original source as inspiration and writing a conforming program from
scratch, meaning with a generous ability to cut and paste. I'd bet that clc
would serve as a sounding board for it. Lack of conformance could come as
quickly as the main call, but that's certainly not the gotchas that Keith
means. EC
msdos6 wrote:
I recently got a hold of the sources of Concurrent CP/M-86(circa 1984),
and the system builder, GENCPM is written in a K&R style C. Does GCC
support this syntax? If not, are there any K&R to ANSI converters out
there, or possibly a modern compiler supporting this syntax? Any help
is appreciated.
...
It depends on how many of K&R features are really used in the code.
Often people refer to code as being "K&R" just because it includes some
old-style function definitions. Code like this is definitely supported
by GCC.
However, if I remember correctly, the most "hardcore" (oldest?) K&R also
required all struct data members to have unique names across all structs
and allowed almost any data type of the left-hand side of '->' operator,
like
0x12345->some_field_nam e = 3;
Things like that are very unlikely to be supported by any modern compiler.
--
Best regards,
Andrey Tarasevich
jmcgill wrote:
mkaras wrote:
Is posession of the source code legal?
Can you name a jurisdiction where copyright law speaks to possession (as
opposed to duplication and distribution?)
This is certainly not true in US Federal law, any state law, nor any
European country that I know of.
The law in the UK mentions possession. For example, Section 23 of the
Copyright, Designs and Patents Act 1988 runs:
23 Secondary infringement: possessing or dealing with infringing copy
The copyright in a work is infringed by a person who, without the
licence of the copyright owner -
(a) possesses in the course of a business,
(b) sells or lets for hire, or offers or exposes for sale or hire,
(c) in the course of a business exhibits in public or distributes, or
(d) distributes otherwise than in the course of a business to such an
extent as to
affect prejudicially the owner of the copyright,
an article which is, and which he knows or has reason to believe is, an
infringing copy of
the work.
Perhaps legal advice can be considered topical for comp.lang.c, but only
*correct* legal advice should be tolerated.
Possibly best to keep legal advice off clc altogether...
On Sun, 22 Oct 2006, Andrey Tarasevich wrote:
msdos6 wrote:
>I recently got a hold of the sources of Concurrent CP/M-86(circa 1984),
and the system builder, GENCPM is written in a K&R style C. Does GCC
support this syntax? If not, are there any K&R to ANSI converters out
there, or possibly a modern compiler supporting this syntax? Any help
is appreciated.
It depends on how many of K&R features are really used in the code.
Often people refer to code as being "K&R" just because it includes some
old-style function definitions. Code like this is definitely supported
by GCC.
However, if I remember correctly, the most "hardcore" (oldest?) K&R also
required all struct data members to have unique names across all structs
and allowed almost any data type of the left-hand side of '->' operator,
like
0x12345->some_field_nam e = 3;
Things like that are very unlikely to be supported by any modern compiler.
FWIW, I just tested on Green Hills' C compiler, with the -k+r option,
and it does support the 0x12345->some_field_nam e syntax. (It allows
field names to be duplicated, too, as long as any ambiguous access
uses a field name all of whose appearances are at the same offset.)
I agree that any free-or-cheap compiler that the OP is likely to
have, is very unlikely to support that syntax. But /someone/ is
always willing to pay a lot for backwards compatibility. :)
-Arthur,
conflict of interest
It seems that OpenWatcom will compile it correctly as long as a fix
some type mismatches, and remove the CP/M dependant code.
As for the legality of this source code, there are 2 liscences for CP/M
which I have considered:
1) If you search for the CP/M license, you will see the original
caldera license. This license I believe is no longer in effect. It
states that I may use the source code for non-commercial use.
2) If you go onto cpm.z80.de, you will see the reissued license posted
on the site by Lineo. It's a bit sparse, but it seems to say the same
thing.
<gw****@aol.com wrote in message
news:11******** **************@ k70g2000cwa.goo glegroups.com.. .
>
jmcgill wrote:
>mkaras wrote:
Is posession of the source code legal?
Can you name a jurisdiction where copyright law speaks to possession (as
opposed to duplication and distribution?)
This is certainly not true in US Federal law, any state law, nor any
European country that I know of.
The law in the UK mentions possession. For example, Section 23 of the
Copyright, Designs and Patents Act 1988 runs:
23 Secondary infringement: possessing or dealing with infringing copy
The copyright in a work is infringed by a person who, without the
licence of the copyright owner -
(a) possesses in the course of a business,
(b) sells or lets for hire, or offers or exposes for sale or hire,
(c) in the course of a business exhibits in public or distributes, or
(d) distributes otherwise than in the course of a business to such an
extent as to
affect prejudicially the owner of the copyright,
an article which is, and which he knows or has reason to believe is, an
infringing copy of
the work.
>Perhaps legal advice can be considered topical for comp.lang.c, but only
*correct* legal advice should be tolerated.
Possibly best to keep legal advice off clc altogether...
That's not advice; it's a statute. I certainly agree that it is possibly
best to keep legal advice off clc. EC This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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