I'm trying to make a point in my C++/data structures class about two-dimensional arrays being an array of one-dimensional arrays, so I thought I'd be clever and whip up the following quickie ...

In both .NET and Java, the garbage collector is smart enough to detect and release circular references. Dealing with circular references in C++, however, isn't as simple. Listing 2 contains a buggy ...

Well, if you're working in C++, you <I>should</I> be using the string class and not character arrays (IIRC, the string class has search and replace methods, but I may be hallucinating).