http://karpoke.ignaciocano.com/tags/null-pointer/Recent content in Null-Pointer on Karpoke - Just Another BlogHugo -- 0.167.0esTue, 26 Jun 2012 02:40:00 +0100http://karpoke.ignaciocano.com/2012/06/26/why-null-points-to-0/Tue, 26 Jun 2012 02:40:00 +0100http://karpoke.ignaciocano.com/2012/06/26/why-null-points-to-0/<blockquote> <p>A few years ago I would answer the above question with ”because NULL is defined as a void pointer to 0”, which is only half correct (and close to being wrong). The answer to this question is much more complicated and thus much more interesting.</p> <p>Let’s start with checking what the C standards (or actually drafts of the standards) say about the (in)famous NULL ptr. The green/yellow/orange colors mark the part that caught my attention. I’ll leave the C++0x case for another time (C++0x introduces the nullptr of std::nullptr_t type btw). For TL;DR scroll down, I summarize the points anyway.</p> </blockquote>