Aaron Ballman is a security software engineer for CERT (a part of the Software Engineering Institute of Carnegie Mellon University). He has over a decade of experience writing cross-platform frameworks in C/C++, compiler & language design, and software engineering best practices.
In case you can't figure it out easily enough, the views expressed here are my personal views and not the views of my employer, my past employers, my future employers or some random person on the street. Please yell only at me if you disagree with what you read.
Category Archives: C/C++
I recently read a post by Phillip Larkson where the C preprocessor was used to implement a four-bit adder entirely at compile time. This got me wondering whether I could implement the same concept using C++ template metaprogramming. It seemed … Continue reading
The expression used in a sizeof operator is an unevaluated expression in C and C++. This can make for some surprising situations if you are unaware of it. For instance: This code will print 12 instead of 13 because the … Continue reading
One of the lesser-known features of Visual Studio’s C/C++ compiler are the pointer type attributes __ptr32 and __ptr64. More information about them can be found on MSDN. These pointer type attributes are used to control the visible size and behavior … Continue reading
Variable argument lists are very arcane in the world of C. You’ll see them expressed in function signatures as … at the end of the parameter list, but you may not understand how they work or what they do.
You may have heard these terms used for various programming languages before, but I wanted to discuss them in a bit more detail since they’re a fairly fundamental concept in compilers that spill over into the way you use the … Continue reading
Sorry about the distinct lack of content lately, but I’ve been busy putting together a new training initiative for my day job. This initiative involves sending weekly snippets of information on C and C++ to many of our developers. The … Continue reading
One thing which I am pretty religious about is the placement of ++ and — in an expression. You have two options for where it can go. If it goes before the operand, it’s a pre-increment/decrement. If it goes after … Continue reading
An ABI is an “application binary interface”, which is basically a contract between pieces of executable code on how to behave. The ABI dictates things like how parameters are passed, where return values go, how to create and destroy stack … Continue reading
This was a silly mistake on my part, but one which took me several hours to track down. In retrospect, I had everything at my disposal to tell me exactly what the problem was, I just didn’t notice it. It … Continue reading