• comeau panix.com (Greg Comeau) Jan 09 2002
• "Walter" <walter digitalmars.com> Jan 09 2002
• comeau panix.com (Greg Comeau) Jan 10 2002

Hi Walter, LONG time no see/talk.  Anyway, as you may be aware,
Comeau is in the process of supporting additional C backends for
Comeau C/C++.  Till now, one needed VC++ in order to use Comeau
under MS-Windows, and we're finally getting around to changing that.

We have a number of backend in various stages of beta including
Borland, MinGW, lcc-win32 and DigitalMars.   One thing I've come
across with dm is that it seems too strict with tentative definitions.
Here's an example:

  static int j;
  static int j = -99;

  static int k;
  extern int k = 99;

sc reports:

  static int j = -99;
               ^
  tendef.c(5) : Error: 'j' is already defined
  extern int k = 99;
               ^
  tendef.c(8) : Error: 'k' is already defined

And although that's true, C's tentative definitions rules
should accomodate it, and hence no diagnostic.  Is there
an option to change this behavior?
-- 
Greg Comeau   What's next: additional Windows backends and 'export'!
Comeau C/C++ ONLINE ==>     http://www.comeaucomputing.com/tryitout
World Class Compilers:  Breathtaking C++, Amazing C99, Fabulous C90.
Comeau C/C++ with Dinkumware's Libraries... Have you tried it?

Hi Greg! I think it's way cool that you're supporting DMC with Comeau. Of
course, you should forget about those other compilers and concentrate on DMC
<g>.

I'll look into the problems you identified.

-Walter

"Greg Comeau" <comeau panix.com> wrote in message
news:a1ht5s$n3q$1 panix3.panix.com...
 Hi Walter, LONG time no see/talk.  Anyway, as you may be aware,
 Comeau is in the process of supporting additional C backends for
 Comeau C/C++.  Till now, one needed VC++ in order to use Comeau
 under MS-Windows, and we're finally getting around to changing that.

 We have a number of backend in various stages of beta including
 Borland, MinGW, lcc-win32 and DigitalMars.   One thing I've come
 across with dm is that it seems too strict with tentative definitions.
 Here's an example:

   static int j;
   static int j = -99;

   static int k;
   extern int k = 99;

 sc reports:

   static int j = -99;
                ^
   tendef.c(5) : Error: 'j' is already defined
   extern int k = 99;
                ^
   tendef.c(8) : Error: 'k' is already defined

 And although that's true, C's tentative definitions rules
 should accomodate it, and hence no diagnostic.  Is there
 an option to change this behavior?
 --
 Greg Comeau   What's next: additional Windows backends and 'export'!
 Comeau C/C++ ONLINE ==>     http://www.comeaucomputing.com/tryitout
 World Class Compilers:  Breathtaking C++, Amazing C99, Fabulous C90.
 Comeau C/C++ with Dinkumware's Libraries... Have you tried it?

In article <a1j524$29uc$2 digitaldaemon.com>,
Walter <walter digitalmars.com> wrote:
Hi Greg! I think it's way cool that you're supporting DMC with Comeau. Of
course, you should forget about those other compilers and concentrate on DMC
<g>.


Of course :)

I'll look into the problems you identified.


Thanks.
-- 
Greg Comeau   What's next: additional Windows backends and 'export'!
Comeau C/C++ ONLINE ==>     http://www.comeaucomputing.com/tryitout
World Class Compilers:  Breathtaking C++, Amazing C99, Fabulous C90.
Comeau C/C++ with Dinkumware's Libraries... Have you tried it?