Comment Feed for Channel 9 - Lambda Expressions in C++ http://ecn.channel9.msdn.com/o9/previewImages/100/480669_100x75.jpg Channel 9 - Lambda Expressions in C++ In this interview, programming writer Thomas Petchel demonstrates how to use Lambda Expressions in C++.  You can also learn more in the topic: Lambda Expressions in C++. Kathleen McGrath Visual Studio User Education http://blogs.msdn.com/kathleen en Fri, 24 May 2013 20:20:47 GMT Fri, 24 May 2013 20:20:47 GMT Rev9 Re: Lambda Expressions in C++ Functions can maintain state if you use static to declare the variables, e.g.,

 

int next()
{
    static int gn = 0;
    return gn++;
}

 

I don't recommend doing this, but it is technically possible, contrary to what was stated in the video.

 

Also, the second program Thomas wrote summed the primes in the range [3..20], not the first 20 prime numbers.

posted by joechung

]]> http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633841924160000000 Sun, 26 Jul 2009 08:06:56 GMT http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633841924160000000 joechung Re: Lambda Expressions in C++ Will extension methods also be there? Smiley

posted by zproxy

]]> http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633842711000000000 Mon, 27 Jul 2009 05:58:20 GMT http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633842711000000000 zproxy Re: Lambda Expressions in C++ Hi Joe,

 

Yes, you're correct that you can use static variables to maintain state between function calls. Perhaps it's better to say that lambda expressions enable you to share state between a function and its caller, because a static local variable is only accessible from the scope of the function in which it is defined.

 

You also caught me saying "the first 20 prime numbers". I realized later that I said this. Thanks for the correction. Devil

 

 

posted by Thomas Petchel

]]> http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633843332390000000 Mon, 27 Jul 2009 23:13:59 GMT http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633843332390000000 Thomas Petchel Re: Lambda Expressions in C++ do we need them? Wink

C++ allows non-member functions. Problem solved. Smiley

 

posted by jalf

]]> http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633844016950000000 Tue, 28 Jul 2009 18:14:55 GMT http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633844016950000000 jalf Re: Lambda Expressions in C++ I think lambda are great!!! I wish more people would learn how to use them when they first start learning how to program.  I sometimes find when you are teaching the basics of computer programming to beginning programmers the old-style methods are usually the best,

posted by neilfmorrow00

]]> http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633844760250000000 Wed, 29 Jul 2009 14:53:45 GMT http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633844760250000000 neilfmorrow00 Re: Lambda Expressions in C++ By the way, prime numbers start with 2, not 3!

posted by Corrector

]]> http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633848641400000000 Mon, 03 Aug 2009 02:42:20 GMT http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c633848641400000000 Corrector Re: Lambda Expressions in C++ posted by wtf

]]> http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c634203601880000000 Fri, 17 Sep 2010 22:43:08 GMT http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c634203601880000000 wtf Re: Lambda Expressions in C++ posted by San

]]> http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c634264973140000000 Sat, 27 Nov 2010 23:28:34 GMT http://channel9.msdn.com/Blogs/kmcgrath/Lambda-Expressions-in-C#c634264973140000000 San