Digital Mars - c++ - does dm support c++ standard header names?

↑ ↓ ← → "Richard Johnson" <rich REMOVETHISBITnorthernsky.uklinux.net> writes:

Hi,

I've just downloaded digital mars and have started to play around with it.
So far I like what I see except that it seems that I have to use the
old-style way of including headers. So, for example:

#include <iostream.h>
int main() {
    cout << "hello\n";
    return 0;
}

compiles whereas:

#include <iostream>
using namespace std;
int main() {
    cout << "hello\n";
    return 0;
}

does not. The compiler says 'unable to open input file iostream'. I'm
wondering if dm simply does not support the newer way of including files or
if the problem lies in my setup. I'm using dm version 8.26n on windows 2000.

Thanks in advance,

Richard.

Feb 13 2002

↑ ↓ ← → Jan Knepper <jan smartsoft.cc> writes:

Richard Johnson wrote:

 Hi,

 I've just downloaded digital mars and have started to play around with it.
 So far I like what I see except that it seems that I have to use the
 old-style way of including headers. So, for example:

 #include <iostream.h>
 int main() {
     cout << "hello\n";
     return 0;
 }

 compiles whereas:

 #include <iostream>
 using namespace std;
 int main() {
     cout << "hello\n";
     return 0;
 }

 does not. The compiler says 'unable to open input file iostream'.


That's because that file does not yet exist in the package!

 I'm
 wondering if dm simply does not support the newer way of including files or
 if the problem lies in my setup. I'm using dm version 8.26n on windows 2000.


No, as far as I know the newer files are missing...

Jan

Feb 13 2002

↑ ↓ ← → "Richard Johnson" <rich REMOVETHISBITnorthernsky.uklinux.net> writes:

"Jan Knepper" <jan smartsoft.cc> wrote in message
news:3C6AFE12.22D13C70 smartsoft.cc...
 Richard Johnson wrote:

 I've just downloaded digital mars and have started to play around with




 So far I like what I see except that it seems that I have to use the
 old-style way of including headers.

 #include <iostream>
 using namespace std;
 int main() {
     cout << "hello\n";
     return 0;
 }

 does not compile. The compiler says 'unable to open input file




 That's because that file does not yet exist in the package!
 No, as far as I know the newer files are missing...


Surely it's the same file? As I understand it you can include iostream by
typing "#include <iostream.h>" but the proper way of doing it is by typing
"#include <iostream>".  Whichever method you use you're still talking about
the same header file aren't you??

Richard.

Feb 14 2002

↑ ↓ ← → Jan Knepper <jan smartsoft.cc> writes:

 Surely it's the same file? As I understand it you can include iostream by
 typing "#include <iostream.h>" but the proper way of doing it is by typing
 "#include <iostream>".  Whichever method you use you're still talking about
 the same header file aren't you??


AFAIK yes.
iostream could just #include <iostream.h>...

Jan

Feb 14 2002

↑ ↓ ← → "Richard Johnson" <rich REMOVETHISBITnorthernsky.uklinux.net> writes:

"Jan Knepper" <jan smartsoft.cc> wrote in message
news:3C6BE6AF.A6092700 smartsoft.cc...
 Surely it's the same file? As I understand it you can include iostream




 typing "#include <iostream.h>" but the proper way of doing it is by




 "#include <iostream>".  Whichever method you use you're still talking




 the same header file aren't you??


 AFAIK yes.
 iostream could just #include <iostream.h>...

 Jan



However, I've just realised this still doesn't give me the 'std' namespace -
but that's too much like hardwork to sort out right now so maybe I'll forget
about namespaces for now...

Richard.

Feb 14 2002

↑ ↓ ← → "David Rasmussen" <pinkfloydhomer yahoo.com> writes:

"Richard Johnson" <rich REMOVETHISBITnorthernsky.uklinux.net> skrev i en
meddelelse news:a4dji3$240h$1 digitaldaemon.com...
 does not. The compiler says 'unable to open input file iostream'. I'm
 wondering if dm simply does not support the newer way of including files


 if the problem lies in my setup. I'm using dm version 8.26n on windows


 Thanks in advance,

 Richard.


The compiler doesn't seem to support namespaces either?!

#include <iostream>

int main()
{
    std::cout << "Hello World!" << std::endl;

    return 0;
}

This produces errors, when compiled, even if iostream.h is used instead...

Can this be true?? I thought this compiler was good!

/David

Feb 14 2002

↑ ↓ ← → Jan Knepper <jan smartsoft.cc> writes:

Yes, it can be true because of the fact that cout is NOT defined in the std
namespace.

Jan



David Rasmussen wrote:

 "Richard Johnson" <rich REMOVETHISBITnorthernsky.uklinux.net> skrev i en
 meddelelse news:a4dji3$240h$1 digitaldaemon.com...
 does not. The compiler says 'unable to open input file iostream'. I'm
 wondering if dm simply does not support the newer way of including files


 if the problem lies in my setup. I'm using dm version 8.26n on windows


 Thanks in advance,

 Richard.


 The compiler doesn't seem to support namespaces either?!

 #include <iostream>

 int main()
 {
     std::cout << "Hello World!" << std::endl;

     return 0;
 }

 This produces errors, when compiled, even if iostream.h is used instead...

 Can this be true?? I thought this compiler was good!

 /David

Feb 14 2002

↑ ↓ ← → "Richard Johnson" <rich REMOVETHISBITnorthernsky.uklinux.net> writes:

"Jan Knepper" <jan smartsoft.cc> wrote in message
news:3C6C4926.1CAD8B4D smartsoft.cc...
 Yes, it can be true because of the fact that cout is NOT defined in the


 namespace.

 Jan



Richard.

Feb 15 2002

↑ ↓ ← → Jan Knepper <jan smartsoft.cc> writes:

In the latest standard it is I think.



Richard Johnson wrote:

 "Jan Knepper" <jan smartsoft.cc> wrote in message
 news:3C6C4926.1CAD8B4D smartsoft.cc...
 Yes, it can be true because of the fact that cout is NOT defined in the


 namespace.

 Jan



 Richard.

Feb 15 2002

↑ ↓ ← → "David Rasmussen" <pinkfloydhomer yahoo.com> writes:

"Jan Knepper" <jan smartsoft.cc> skrev i en meddelelse
news:3C6C4926.1CAD8B4D smartsoft.cc...
 Yes, it can be true because of the fact that cout is NOT defined in the


 namespace.

 Jan


So this compiler is not ANSI/ISO compliant in the least bit? According to
ANSI/ISO compliance, cout is defined int the std namespace. In practice,
this means that most modern, compliant code cannot be compiled with this
compiler. That's a shame.

/David

Feb 15 2002

↑ ↓ ← → Jan Knepper <jan smartsoft.cc> writes:

It is not completely compliant YET with the latest ANSI/ISO standards...

Jan



David Rasmussen wrote:

 "Jan Knepper" <jan smartsoft.cc> skrev i en meddelelse
 news:3C6C4926.1CAD8B4D smartsoft.cc...
 Yes, it can be true because of the fact that cout is NOT defined in the


 namespace.

 Jan


 So this compiler is not ANSI/ISO compliant in the least bit? According to
 ANSI/ISO compliance, cout is defined int the std namespace. In practice,
 this means that most modern, compliant code cannot be compiled with this
 compiler. That's a shame.

 /David

Feb 15 2002

↑ ↓ ← → "David Rasmussen" <pinkfloydhomer yahoo.com> writes:

Which is 4 years old :)

"Jan Knepper" <jan smartsoft.cc> skrev i en meddelelse
news:3C6D2143.6ECFC52B smartsoft.cc...
 It is not completely compliant YET with the latest ANSI/ISO standards...

 Jan



 David Rasmussen wrote:

 "Jan Knepper" <jan smartsoft.cc> skrev i en meddelelse
 news:3C6C4926.1CAD8B4D smartsoft.cc...
 Yes, it can be true because of the fact that cout is NOT defined in






 std
 namespace.

 Jan


 So this compiler is not ANSI/ISO compliant in the least bit? According




 ANSI/ISO compliance, cout is defined int the std namespace. In practice,
 this means that most modern, compliant code cannot be compiled with this
 compiler. That's a shame.

 /David

Feb 16 2002

↑ ↓ ← → "Richard Johnson" <rich REMOVETHISBITnorthernsky.uklinux.net> writes:

"David Rasmussen" <pinkfloydhomer yahoo.com> wrote in message
news:a4hg6h$th4$1 digitaldaemon.com...
 The compiler doesn't seem to support namespaces either?!

 #include <iostream>

 int main()
 {
     std::cout << "Hello World!" << std::endl;

     return 0;
 }

 This produces errors, when compiled, even if iostream.h is used instead...

 Can this be true?? I thought this compiler was good!

 /David


I think the compiler does support namespaces (in the sense that you can
create your own namespaces) but the standard c++ headers have not been
placed in the std namespace as they are supposed to be. That's why you can't
use std::cout.

Richard.

Feb 15 2002

↑ ↓ ← → Jan Knepper <jan smartsoft.cc> writes:

Richard Johnson wrote:

 "David Rasmussen" <pinkfloydhomer yahoo.com> wrote in message
 news:a4hg6h$th4$1 digitaldaemon.com...
 The compiler doesn't seem to support namespaces either?!

 #include <iostream>

 int main()
 {
     std::cout << "Hello World!" << std::endl;

     return 0;
 }

 This produces errors, when compiled, even if iostream.h is used instead...

 Can this be true?? I thought this compiler was good!

 /David


 I think the compiler does support namespaces (in the sense that you can
 create your own namespaces)


Correct to some extend. Walter is working on this.

 but the standard c++ headers have not been placed in the std namespace as they
 are supposed to be. That's why you can't use std::cout.


Correct.

Jan

Feb 15 2002