You want to transform one file into another, input into output. What API will you choose on Windows? WinApi? C++ Streams or good old stdio? Last year in September I looked at four ways of processing a file on Windows. Also, I did some performance tests. The whole project description was recently published in Visual Studio Magazine.

Some time ago I covered how to use custom deleters with smart pointers. The basic idea is to specify a dedicated method that will be called when a pointer is released. One logical application of custom deleters might be resource handles like files or the WinApi HANDLE type. Let’s see how can we implement such thing.