jaredpar's WebLog

Thread local storage is another method of synchronization between threads. It is different that most synchronization cases because instead of sharing state between threads it enables developers to have independent, thread specific pieces of data which Read More...

Posted Monday, April 21, 2008 1:52 PM by Jared Parsons | 1 Comments

Filed under: C++, Templates, Threading

Gotcha: CComPtrBase<T> assignment

Today what started out as a crash due to a pure virtual call turned into finding a gotcha in CComPtrBase<T>. Essentially the code in question boiled down to the following. Can you spot the problem? void GetAStudent(CComPtrBase<T> &spStudent) Read More...

Posted Tuesday, April 08, 2008 11:44 AM by Jared Parsons | 2 Comments

Filed under: C++, Templates, Gotcha

Reference values in C++

Reference values are a powerful feature of C++ but I find they have one significant detractor. A developer can not look at an API call and determine if a parameter is being passed by reference or value (VB has the same problem). IMHO this is one item Read More...

Posted Thursday, April 03, 2008 10:24 AM by Jared Parsons | 2 Comments

Filed under: C++, Templates, API Design

Multiple paths to IUnknown

ATL has a lot of great tools for COM programming and CComPtr is a good example. It's a smart pointer class which manages the reference count of an underlying COM object. One of it's limitations though is it will only work properly when the inheritance Read More...

Posted Friday, February 22, 2008 1:21 AM by Jared Parsons | 0 Comments

Filed under: C++, Patterns, Templates

C++ Placement New: Tracking down a crash

See my previous two posts on an introduction to placement new if you are unfamiliar with the subject. http://blogs.msdn.com/jaredpar/archive/2007/10/16/c-new-operator-and-placement-new.aspx http://blogs.msdn.com/jaredpar/archive/2007/10/17/c-placement-new-and-allocators.aspx Read More...

Posted Thursday, October 18, 2007 1:05 PM by Jared Parsons | 1 Comments

Filed under: C++, Patterns, Templates