Is it possible to delete a blog from the "I read these blogs" list?
MMD distances
Hello Guest		   
  • Login
• Register…
• Start blog		   • Who, Where, When
• What can I do?
• What to Read?		   • Polls
• Avatars
• Interests		   • Cities and Countries
• Random blog
• Users search		   • Search
• Games
• Tests
• QAIX		   • Talxy Chat
• Horoscope
• Online		  
Зарегистрируйся!
QAIX > Perl web-programming > MMD distances 9 May 2008 11:29:47
  Recent blog posts: 
real ventures
My prayer for u: Starting from today, you are moving from glory to glory; anything you lay your hands on…

Of Gold and Current Trends
Gold still hovers over the $860/oz mark. As usual, whenever such a price spike occurs -- and they do not…

Handpunch
if any one want to know about handpunch programming(Rsidll3­­2.dll), plz contact me. Hi hairul…

My Best Person
Hello, I have some one whom i love very much. Love beyond anyone cud think of . This brother of mine…

The valley of life
I WALKED THROUGH THE VALLEY OF LIFE THE VALLEY WAS FILLED WITH ROSE LIFE SEEMED TO BE BEAUTIFUL BUT…

A Poem by Gloria Oelman
:-)­ I knew You once in all your glory When I was unafraid And had no guilt to block Your…

Watch out the network trap
I wonder if everybody notice recent in the msn, our window have nothing to be different? Anyway I am…

RSIDLL32.DLL
Hi All, I done a programme for HandPunch device using RSIDLL32.DLL. I can establish a connection with…

Not until we see there fear !!!
"Can you smell that" I asked my friend as the car lurched forward and sped off into the night…

locking a cell dependant upon…
Hi I have a sheet full of look ups, charts etc. that I have designed for managing projects and…

  They have birthday today: 
islamsabri
  Forums:   
    topic feeds

• QAIX  all topics, blogs and comments

• PHP web-programming

• Perl web-programming

• ASP web-programming

• Visual Basic Programming

• .Net Development

• C/C++ Programming

• Java Programming

• Javascript web-programming

• Apache HTTP Server

• Web-design

• Web-hosting, dedicated, colocation

• HTML web-programming

• XML development

• General Web-programming

• Content Management Systems

• ColdFusion

• Search Engine Optimization

• Hardware

• Software, Computer Help

• MySQL database development

• PostgreSQL database development

• MS Access database development

• Oracle database development

• MS SQL database development

• Informix database development

• Buy / Sell

• Open discussion

• Anonymous
  Discuss: 
DBD::Oracle, InstantClient…
Hello, I'm trying to get the Oracle InstantClient to work so we can connect to some remote data…

DBI->connect Error
A very simple script: #!/usr/bin/perl -w use strict; use DBI; my $dbname = "test"; my $host…

DBD::ODBC and cancel()
(DBI 1.604, DBD::ODBC 1.15, WinXP, AS 5.8.8) I'm trying to test cancel of long running queries via…

DBD::ODBC 1.16 uploaded to CPAN
Hi, I have just uploaded DBD::ODBC 1.16 to CPAN. This release contains the following changes: =head1…

ANNOUNCE: IBM Informix Database…
IBM Informix Database Driver for Perl DBI Version 2008.0513 (2008-05-13) has been uploaded to CPAN…
  Recent forum topics: 
Register Globals &…
I'm converting old code to work with Register globals turned off in php.ini. With it on…

[JBoss jBPM] - Problem during…
Hello all, I want to deploy a very simple process in jbpm Bpel. I could configure and test helloworld…

DBD::Oracle, InstantClient…
Hello, I'm trying to get the Oracle InstantClient to work so we can connect to some remote data…

DBI->connect Error
A very simple script: #!/usr/bin/perl -w use strict; use DBI; my $dbname = "test"; my $host…

DBD::ODBC and cancel()
(DBI 1.604, DBD::ODBC 1.15, WinXP, AS 5.8.8) I'm trying to test cancel of long running queries via…
  Recent forum comments:
RE: Re: Convert .exe to .html Is…
no -appledyl

RE: Register Globals &…
You are working with Register globals turned off, so try…

RE: [JBoss jBPM] - Problem during…
]:-)­ same with me.... r u working on jBPM BPEL

RE: DBD::ODBC and cancel()
Tim Bunce wrote: Thanks for that - as Tim says it is a bug, cancel is not just for select statements…

RE: neopets hacking
Wtf??! Yew just wanna get referrals and prizes don't think I don't knoe that it's not gonna work pplz…

RE: DBD::ODBC and cancel()
On Wed, May 14, 2008 at 03:12:27PM -0700, Dean Arnold wrote: I don't think it should be checking the…

RE: Cannot see AND Windows system…
Steven Perreau wrote: Is this a 64 bit windows machine? I only ask because on 64 bit windows there are…

RE: DBD-ODBC and DBI 1.21
Hi Beadles: "ppm install DBD-ODBC.ppd -nodeps" worked for me also. thanks for the trick…

RE: Cannot see AND Windows system…
Here's the code that does this, maybe some guru can see something wrong! #!/usr/bin/perl # # This…

RE: DBI::_new_handle leak?
On Fri, May 09, 2008 at 11:31:46AM -0500, James R. Leu wrote: You've two choices: cut-down or…
  Moderators:
 Administrator
 Protorioris

MMD distances

John M. Dlugosz 9 May 2008 11:29:47
 TSa Thomas.Sandlass-at-­barco.com |Perl 6| wrote:
Coming back to how C++ handles static overloading. How is
the sort order of (int *), (int &), (int), (const int *),
(const int &), (const int), (int * const) and (const int * const)?
I'm too lazy to look up the details, sorry.

Without looking anything up in the standard,
int and int& are indistinguishable.
int* is a different type from int, and won't be confused.
const vs const int don't matter to the caller.

- const int& is preferred over int/int&.
- const int* is preferred over int*.

--John


OptionsAdd comment
TSa 8 May 2008 17:45:35 [ permanent link ]
 HaloO,

John M. Dlugosz wrote:
- const int& is preferred over int/int&.
- const int* is preferred over int*.

You mean when in each case both versions are
defined as overloads only the preferred ones
are ever called? C++ is the other way around.
For an int* argument the int* version is preferred
if both are available. For a const int* the int*
is not applicable, thus not choosen.

Now I understand your motivation to mangle the
traits into the (dynamic) dispatch rules. But
note that I would not call the C++ compile time
choice dispatch. I think the standard doesn't either.
It's called overload resolution. Perl 6 can't do
that at compile time unless *all* targets are
available as rw and readonly variants.


Regards, TSa.
--

"The unavoidable price of reliability is simplicity" -- C.A.R. Hoare
"Simplicity does not precede complexity, but follows it." -- A.J. Perlis
1 + 2 + 3 + 4 + ... = -1/12 -- Srinivasa Ramanujan
Add comment
John M. Dlugosz 9 May 2008 00:07:55 [ permanent link ]
 TSa Thomas.Sandlass-at-­barco.com |Perl 6| wrote:
It's called overload resolution. Perl 6 can't do
that at compile time unless *all* targets are
available as rw and readonly variants.


I don't follow that statement. Can you give an example?
Add comment
TSa 9 May 2008 11:29:47 [ permanent link ]
 HaloO,

John M. Dlugosz wrote:
TSa Thomas.Sandlass-at-­barco.com |Perl 6| wrote:
It's called overload resolution. Perl 6 can't do
that at compile time unless *all* targets are
available as rw and readonly variants.
I don't follow that statement. Can you give an example?

multi sub foo (Int $i) {...}
multi sub foo (Int $i is rw) {...}
multi sub foo (Num $n) {...}
multi sub foo (Num $n is rw) {...}

# OK so far

multi sub foo (Str $s is rw) {...} # not OK

sub bar ($x)
{
$x = 3; # error, $x is readonly
foo($x); # error, could hit rw Str
}

I must admit though, that my statement was a bit lax.
All targets readonly is fine. But the first rw
requires the insertion of rw targets for all
other variants. Perhaps you can get away with
less than all if you can prove that they'll never
be in the candidate set together with an rw. Note
that such a prove might be falsified subsequently
by introducing an Any sub like bar above.


Regards, TSa.
--

"The unavoidable price of reliability is simplicity" -- C.A.R. Hoare
"Simplicity does not precede complexity, but follows it." -- A.J. Perlis
1 + 2 + 3 + 4 + ... = -1/12 -- Srinivasa Ramanujan
Add comment
 

Add new comment

As:
Login:  Password:  
 
 
  
 
Пожалуйста, относитесь к собеседникам уважительно, не используйте нецензурные слова, не злоупотребляйте заглавными буквами, не публикуйте рекламу и объявления о купле/продаже, а также материалы нарушающие сетевой этикет или УК РФ.

QAIX > Perl web-programming > MMD distances 9 May 2008 11:29:47
see also:
SQLDriverConnect hangs when DB…
Unicode conversion issue
missing Pg.pm in Postgres v7.3.1
see also:
full table...
How many joins is too many joins....
index is not used
see also:
Warning: thr_alarm queue is full errors…
Re: FW: Problem starting a session
converting Oracle to postgres
  Copyright © 2001—2008 QAIX
Idea: Miсhael Monashev
You can find the help and FAQ in the Admin's blog.
Write us at:
If you would like to report an abuse of our service, such as a spam message, please .