Thread overview
64-bit integer literals bug?
Apr 05, 2003
Mikael Klasson
Apr 05, 2003
Christof Meerwald
Apr 05, 2003
Mikael Klasson
Apr 05, 2003
Walter
Apr 05, 2003
Mikael Klasson
Apr 05, 2003
Walter
Apr 06, 2003
Matthew Wilson
Linker (was: 64-bit integer literals bug?)
Apr 06, 2003
Christof Meerwald
Apr 06, 2003
Christof Meerwald
April 05, 2003
Hi,

it seems dmc just uses the lower 32 bits of my 64-bit integer literals.

long long t = 123456789012345;
gives t the value 123456789012345 mod 2^32 = 2249056121

The compiler doesn't even give a warning.

Digital Mars C/C++ Compiler Version 8.33.13n

Regards,
Mikael


April 05, 2003
On Sat, 5 Apr 2003 13:34:32 +0000 (UTC), Mikael Klasson wrote:
> long long t = 123456789012345;

use
long long t = 123456789012345LL;
instead

> The compiler doesn't even give a warning.

a warning would be nice though.


bye, Christof

-- 
http://cmeerw.org                                 JID: cmeerw@jabber.at mailto cmeerw at web.de

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April 05, 2003
>use
>long long t = 123456789012345LL;
>instead

Thanks! You just saved me a lot of hassle.

Cheers,
Mikael

P.S. God I love this compiler... It's soooo fast. :) The most annoying thing I can think of is the 40MB(?) optlink limit on static data. No fix for that?


April 05, 2003
"Mikael Klasson" <Mikael_member@pathlink.com> wrote in message news:b6mnsa$10ko$1@digitaldaemon.com...
> P.S. God I love this compiler... It's soooo fast. :) The most annoying
thing I
> can think of is the 40MB(?) optlink limit on static data. No fix for that?


Kinda stuck with that. Optlink is written entirely in heavilly optimized assembler, and is a bit immune to any rewrites :-(


April 05, 2003
>Kinda stuck with that. Optlink is written entirely in heavilly optimized assembler, and is a bit immune to any rewrites :-(

How about that warning for cropped 64-bit literals then? I'm certainly not used to appending LL, and it seems like a useful warning.

Thanks anyhow,
Mikael


April 05, 2003
"Mikael Klasson" <Mikael_member@pathlink.com> wrote in message news:b6nlpu$1mjg$1@digitaldaemon.com...
> >Kinda stuck with that. Optlink is written entirely in heavilly optimized assembler, and is a bit immune to any rewrites :-(
>
> How about that warning for cropped 64-bit literals then? I'm certainly not
used
> to appending LL, and it seems like a useful warning.

Years ago, it used to and I removed it. I don't remember why. There was a reason :-)


April 06, 2003
Can we have it back? That'd be good. :)

"Walter" <walter@digitalmars.com> wrote in message news:b6nnj4$1nsg$1@digitaldaemon.com...
>
> "Mikael Klasson" <Mikael_member@pathlink.com> wrote in message news:b6nlpu$1mjg$1@digitaldaemon.com...
> > >Kinda stuck with that. Optlink is written entirely in heavilly
optimized
> > >assembler, and is a bit immune to any rewrites :-(
> >
> > How about that warning for cropped 64-bit literals then? I'm certainly
not
> used
> > to appending LL, and it seems like a useful warning.
>
> Years ago, it used to and I removed it. I don't remember why. There was a reason :-)
>
>


April 06, 2003
On Sat, 5 Apr 2003 14:06:02 +0000 (UTC), Mikael Klasson wrote:
> P.S. God I love this compiler... It's soooo fast. :) The most annoying thing I can think of is the 40MB(?) optlink limit on static data. No fix for that?

I am currently working on getting OpenWatcom's wlink to work with DMC. So far, I have it mostly working (just had to fix a few incompatibilities in wlink's OMF-file processing).

It is able to link programs with more than 40 MB static data (but the resulting EXE-files are in this case also about 40 MB in size - I hope I can find an easy way to fix that).

But probably the most exciting feature is that wlink can read COFF libraries and even Microsoft's new-style COFF import libraries (so you can directly use Microsoft's Platform SDK import libraries without having to convert them).

I am going to release my modifications to wlink in the next few days...


bye, Christof

-- 
http://cmeerw.org                                 JID: cmeerw@jabber.at mailto cmeerw at web.de

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April 06, 2003
On Sun, 6 Apr 2003 13:30:11 +0000 (UTC), Christof Meerwald wrote:
> On Sat, 5 Apr 2003 14:06:02 +0000 (UTC), Mikael Klasson wrote:
>> P.S. God I love this compiler... It's soooo fast. :) The most annoying thing I can think of is the 40MB(?) optlink limit on static data. No fix for that?

[OpenWatcom's wlink]
> It is able to link programs with more than 40 MB static data (but the resulting EXE-files are in this case also about 40 MB in size - I hope I can find an easy way to fix that).

Changing the following lines in \dm\src\core32\cinit.asm fixes the problem:

XOF            segment dword use32 public 'BSS'
;               dd      65 dup(0)          ;64 for _atexit_tbl + 1 for null ptr
               org      4 * 65
XOF            ends


> I am going to release my modifications to wlink in the next few days...

It's now available on my Web site at http://cmeerw.org/prog/owtools/


bye, Christof

-- 
http://cmeerw.org                                 JID: cmeerw@jabber.at mailto cmeerw at web.de

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