Does g++ have a intel/msdn __COUNTER__ macro equivalent??

Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[me]

Dear Sir/Madam
I'm trying to specify random distributions throughout my program eg
Uniform(1,0), Normal(10,2). 

Id like these replaced at the pre-processing stage with
Uniform(__COUNTER__,1,0) & Normal(__COUNTER__,10,2) using macros such as
#define U(a,b) U(__COUNTER__,a,b) etc

The point of this is that __COUNTER__ would assign consecutive numbers
representing the index of the random number generator to be used.

Here is a description of Microsoft's version of __COUNTER__ &
I believe that Intel also has such a facility.
========================================================================
Expands to an integer starting with 0 and incrementing by 1 every time
it is used in a compiland. __COUNTER__ remembers its state when using
precompiled headers. If the last __COUNTER__ value was 4 after building
a precompiled header (PCH), it will start with 5 on each PCH use.

__COUNTER__ lets you generate unique variable names. You can use token
pasting with a prefix to make a unique name. For example:

// pre_mac_counter.cpp
#include <stdio.h>
#define FUNC2(x,y) x##y
#define FUNC1(x,y) FUNC2(x,y)
#define FUNC(x) FUNC1(x,__COUNTER__)

int FUNC(my_unique_prefix);
int FUNC(my_unique_prefix);

int main() {
   my_unique_prefix0 = 0;
   printf_s("\n%d",my_unique_prefix0);
   my_unique_prefix0++;
   printf_s("\n%d",my_unique_prefix0);
}
========================================================================

I can not find g++'s equivalent & wonder how I could achieve the same
thing?

Your consideration of this matter is much appreciated.
Best Rgds
Dean

RE: Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[Dave Korn]

On 04 September 2007 10:05, me wrote:

> The point of this is that __COUNTER__ would assign consecutive numbers

> I can not find g++'s equivalent & wonder how I could achieve the same
> thing?

  This feature was just added recently.  It will be in all upcoming gcc-4.3
and later series releases.  See 
http://gcc.gnu.org/ml/gcc-patches/2007-05/msg01579.html



    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....

RE: Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[Gerald Pfeifer]

On Tue, 4 Sep 2007, Dave Korn wrote:
> On 04 September 2007 10:05, me wrote:
>> The point of this is that __COUNTER__ would assign consecutive numbers
>
>> I can not find g++'s equivalent & wonder how I could achieve the same
>> thing?
> This feature was just added recently.  It will be in all upcoming gcc-4.3
> and later series releases.  See 
> http://gcc.gnu.org/ml/gcc-patches/2007-05/msg01579.html

Hmm, I just noticed that we do not indicate so in our release notes, 
though.

Ollie, would you mind adding a snippet to htdocs/gcc-4.3/changes.html
in the wwwdocs module of our CVS repository?  If you need any help with
that, please let me know.

Gerald

Re: Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[Ollie Wild]

On 9/9/07, Gerald Pfeifer <gerald@pfeifer.com> wrote:
> Ollie, would you mind adding a snippet to htdocs/gcc-4.3/changes.html
> in the wwwdocs module of our CVS repository?  If you need any help with
> that, please let me know.

Sent to gcc-patches at
http://gcc.gnu.org/ml/gcc-patches/2007-09/msg01017.html.  Please
review.

Also, I recently added a new -fdirectives-only option which improves
distcc and ccache performance.  Does that merit a release note update
as well?

Ollie

Re: Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[Tom Tromey]

>>>>> "Ollie" == Ollie Wild <aaw@google.com> writes:

Ollie> Also, I recently added a new -fdirectives-only option which improves
Ollie> distcc and ccache performance.  Does that merit a release note update
Ollie> as well?

IMO, yes.

Tom

Re: Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[Gerald Pfeifer]

On Tue, 11 Sep 2007, Tom Tromey wrote:
>> Also, I recently added a new -fdirectives-only option which improves
>> distcc and ccache performance.  Does that merit a release note update
> as well?
> IMO, yes.

Seconded. :-)

Gerald

Re: Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[Ollie Wild]

On 9/11/07, Gerald Pfeifer <gerald@pfeifer.com> wrote:
> On Tue, 11 Sep 2007, Tom Tromey wrote:
> >> Also, I recently added a new -fdirectives-only option which improves
> >> distcc and ccache performance.  Does that merit a release note update
> > as well?
> > IMO, yes.
>
> Seconded. :-)

OK.  I'll add a blurb for -fdirectives-only as well.

One quick question.  When I updated the gcc info page, Mark Mitchell
felt strongly that it shouldn't mention distcc or ccache directly.
However, I think it's a good idea to give users some idea what the
option is good for.  Is it appropriate to mention these applications
in the release notes?

Ollie

Re: Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[Tom Tromey]

>>>>> "Ollie" == Ollie Wild <aaw@google.com> writes:

Ollie> One quick question.  When I updated the gcc info page, Mark
Ollie> Mitchell felt strongly that it shouldn't mention distcc or
Ollie> ccache directly.  However, I think it's a good idea to give
Ollie> users some idea what the option is good for.  Is it appropriate
Ollie> to mention these applications in the release notes?

I think it makes sense, but I wonder what Mark's objection was.

Tom

Re: Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[Ollie Wild]

On 9/13/07, Tom Tromey <tromey@redhat.com> wrote:
> >>>>> "Ollie" == Ollie Wild <aaw@google.com> writes:
>
> Ollie> One quick question.  When I updated the gcc info page, Mark
> Ollie> Mitchell felt strongly that it shouldn't mention distcc or
> Ollie> ccache directly.  However, I think it's a good idea to give
> Ollie> users some idea what the option is good for.  Is it appropriate
> Ollie> to mention these applications in the release notes?
>
> I think it makes sense, but I wonder what Mark's objection was.

Mark, would you like to comment?

Ollie

Re: Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[Mark Mitchell]

Ollie Wild wrote:
> On 9/13/07, Tom Tromey <tromey@redhat.com> wrote:
>>>>>>> "Ollie" == Ollie Wild <aaw@google.com> writes:
>> Ollie> One quick question.  When I updated the gcc info page, Mark
>> Ollie> Mitchell felt strongly that it shouldn't mention distcc or
>> Ollie> ccache directly.  However, I think it's a good idea to give
>> Ollie> users some idea what the option is good for.  Is it appropriate
>> Ollie> to mention these applications in the release notes?
>>
>> I think it makes sense, but I wonder what Mark's objection was.
> 
> Mark, would you like to comment?

I wouldn't characterize my objections as terribly strong.  It's
certainly nothing against distcc or ccache.  But, I think these kinds of
mentions are odd to put in our documentation.  The manual should say
what the options do.  Referencing specific tools, which may or may not
continue to exist, etc., seems odd to me.  The manual is a reference
text; this isn't reference information.

In a tutorial, or in release notes, I have no objection.

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713

Re: Does g++ have a intel/msdn __COUNTER__ macro equivalent??

[Ollie Wild]

On 9/13/07, Mark Mitchell <mark@codesourcery.com> wrote:

> I wouldn't characterize my objections as terribly strong.  It's
> certainly nothing against distcc or ccache.  But, I think these kinds of
> mentions are odd to put in our documentation.  The manual should say
> what the options do.  Referencing specific tools, which may or may not
> continue to exist, etc., seems odd to me.  The manual is a reference
> text; this isn't reference information.
>
> In a tutorial, or in release notes, I have no objection.

Thanks, Mark.

Update sent to gcc-patches at
http://gcc.gnu.org/ml/gcc-patches/2007-09/msg01218.html.

Ollie