How many times you said so after spending hours on chasing a bug? There’s always one f#$%!@ thing you haven’t done…

Herb Sutter wrote a great abstract with list of features of C++11 that give impression it’s a new language. In the article, there’s a link to the other useful resource, C++11 – the recently approved new ISO C++ standard (by Bjarne Stroustrup).

I watched one session and followed it by the other one. I’ve only seen two of last year’s session for now but I don’t regret and will definitely come back and watch more. Having looked at the speakers and agenda, it seems it was a decent conference. If you have a moment, visit the the agenda of NDS2011, with links to videos, and look at the sessions. Probably, there are a few you might be interested in. Watch it/them and be happy to safe some amount

Let’s get down to the business:

• only 3 posts that year busy? lazy? …?
• nevertheless, I was observing constant interest growth (more and more vistst, by Google Analytics):
  • 196,717 Visits (+45% comparing to 2010)
  • 178,770 Unique Visitors (+46% comparing to 2010)
  • 222,258 Pageviews (+42% comparing to 2010)
• most popular post: C#, decimal.toString(), and how to get rid of trailing zeros – 17,302 pageviews

Solution

Go to Source Control window and locate the file(s) that need restoring. If you can’t see deleted items, go to Tools > Options > Source Control > Visual Studio Team Foundation Server and check ‘Show deleted items in the Source Control Explorer’ (see the screenshot below). This way, in Source Control explorer you should be able to locate both existing and deleted items.

Now, in Source Control window, right click the item(s) you want to restore and select Undelete. The file(s) will be marked with undelete chage in Pending Changes window. All you need to do now is to check in the change. Complete history of changes to the restored files will be saved.

P.S. This is hint given by my friend (thanks Tomek ).

Solution

Apparently, .NET does not provide such feature so one needs to stretch a bit to get the answer. What I can suggest (I’m far from saying it’s good approach, though) is to get the name in two steps:

1. Use netstat -a -o and parse the output (ouch!) to get ID of the process (PID) that is listening at given port number
2. Perform a WMI call to get the name of the service: SELECT Name FROM Win32_Service where ProcessId = PID

Following this will give you what you want, but to be honest any time I need to parse output to get some information I feel anxious… This is the first place in the code where errors can be introduced.

If there is/are better/safer way(s) to retrieve service name having the host name and port it’s listening at, please share it.

Here are most important pros that make me think RockScroll is must-have plugin for Visual Studio:

• Replaces standard Visual Studio scrollbar with slightly wider one which is actually a thumbnail of current file with indication what you currently see in main window. Great, especially when working with long files.
• Highlights in red all occurrences of selected word. This is most powerful – no more ‘Find all references’ and switching context between the main window and Find Symbol Results pane.

Here’s a snapshot of how it looks (taken from Scott Hanselman’s blog):

I recommend you download RockScroll from Scott Hanselman’s blog and give it a try.

#include <iostream>
#include <conio.h>

using namespace std;

class Base
{
public:
   void DoSth(int tmp)
   {
	   cout << "Base::DoSth(int)\n";
   }

   void DoSth(char tmp)
   {
	   cout << "Base::DoSth(char)\n";
   }
};

class Derived : public Base
{
public:
   void DoSth(int tmp)
   {
	   cout << "Derived:DoSth(int)\n";
   }
};

int main()
{
	Derived d;
	d.DoSth(5);
	d.DoSth('c');

	getch();
    return 0;
}

Answer

Derived:DoSth(int)
Derived:DoSth(int)

Surprised? If so, you probably chose:

Derived:DoSth(int)
Base::DoSth(char)

There's a tricky problem here, though. The reason why the code worked as it did is class Derived overrode only one method from Base class: Base::DoSth(int) and thus it hid the other overloads defined by class Base. This way, executing d.DoSth('c') actually invoked Derived::DoSth(int), casting char to int.

In order to get this output:

Derived:DoSth(int)
Base::DoSth(char)

class Derived must be defined as below:

class Derived : public Base
{
public:
   void DoSth(int tmp)
   {
	   cout << "Derived:DoSth(int)\n";
   }
   using Base::DoSth;	// brings the other Base::DoSth overloads into scope
};

Please mind that using declaration was added: using Base::DoSth;. Check description of using declaration at MSDN to get more information if you are still lost.

To better explain theory provided on his slides, Krzysztof used CrypTool. Let me cite the authors of this tool to give you a basic idea on what CrypTool is:

CrypTool is a free, open-source e-learning application, used worldwide in the implementation and analysis of cryptographic algorithms. It supports both contemporary teaching methods at schools and universities as well as awareness training for employees and civil servants.

I think this is a great tool that can be used to systematize knowledge related to cryptography, e.g. hash functions, digital signature, PKI. You can play around with CrypTool and see on the fly how different methodologies / algorithms work and what they require. What I liked most were the flow diagrams that visualize how some techniques (e.g. digital signare generation, hybrid cryptography) work step by step and see the intermittent results (see below).

P.S. I used CrypTool 1.4.30 but there’s also CrypTool 2.0 (still beta) available at the official web site.

I find this book relevant and very informative. If you want to master LINQ lingo, just read it.

For broader evaluation see my review on DZone.

P.S. DZone’s IT Book Zone is another great initiative. In short DZone gives you a free copy of a book and expects to receive its review in return. Fair agreement – one can stretch the envelope of IT domains for free, while DZone broadens thier public resources.