Category Archives: Code

Working with C++0X/C++11: Lambdas – part 3 – introducing closures

Posted on February 16, 2012 by Ron

Closure In computer science, a closure (also lexical closure, function closure, function value or functional value) is a function together with a referencing environment for the non-local variables of that function. A closure allows a function to access variables outside … Continue reading →

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Working with C++0X/C++11: Lambdas – part 2 – Scope Capture

Posted on December 22, 2011 by Ron

Since a lambda is a local function defined with a scope (i.e. inside another function) it can have access to the same variables that are in that scope. This is where the capture-mode comes in. (Perversely, this prevents lambdas from … Continue reading →

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Working with C++0x/C++11: Lambdas – part 1- Syntax

Posted on November 3, 2011 by Ron

Lambdas are new to C++0x and if you are familiar with functors then you already have a good idea of how lambdas can be used. Where lambdas really become useful (in my opinion) are allowing you to encapsulate behavior (as … Continue reading →

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Working with C++0x/C++11: nullptr and nullptr_t

Posted on August 9, 2011 by Ron

One my pet peeves with C/C++ are null pointers – specifically not having a good way of specifying a special pointer value that means “invalid pointer”. C (and C++) have a preprocessor macro NULL, which in C expands to either … Continue reading →

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Working with C++0x/C++11: static_assert and decltype

Posted on July 28, 2011 by Ron

I have been writing a lot of code the last few months, and I’ve had a chance to play with some of the new C++0x features. It’s really the first time in many years that there’s been a significant improvement … Continue reading →

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Double Your Program Speed with One Easy Change

Posted on March 18, 2011 by Ron

My friend Stan Melax has written a number of articles on optimization using SSE instructions. He’s also talked about some simple things you can do to make your program run faster. I’d like to reiterate one of these because it’s … Continue reading →

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Microsoft Developer Network Article on Threading – Part 2 – Scalable Multithreaded Programming with Tasks

Posted on November 29, 2010 by Ron

The second of my series of articles on threading is up on Microsoft Systems Developer Network Magazine: Scalable Multithreaded Programming with Tasks This article is about using tasks to break up a lengthy job into a series of smaller ones … Continue reading →

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Microsoft Developer Network Article on Threading – Part 1 – Scalable Multithreaded Programming with Thread Pools

Posted on October 1, 2010 by Ron

The first of a series of articles on threading is up on Microsoft Systems Developer Network Magazine: Scalable Multithreaded Programming with Thread Pools This article is a gentle introduction on how to get better CPU performance with little effort.  If your … Continue reading →

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