Firebird, MySQL, and PostgreSQL are probably the most famous representatives of DBMS. Naturally, these projects often are compared with each other - by functionality, usability, etc. We have decided to perform our own code quality comparison of these projects.

The article gives a review of bugs, detected using PVS-Studio static code analyzer. A 'direct' approach of comparing by the number of warnings in this case is badly applicable, so you have to find other ways to compare. For example, you can analyze projects for potential vulnerabilities, as well as to see which of the most interesting errors will be found. By undertaking such a review, you can estimate, which code is better, and find out who will emerge victorious from this battle.

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Kate Milovidova 30 november 2017, 13:10

Honestly I warn: take this text with a certain amount of skepticism. I just recently started to get acquainted with the internals of PHP, but I would like to tell you about what is happening behind the scenes bug # 75237 .
Papay 20 november 2017, 13:25


On November 23, 2011 id Software supported its own tradition and published the source code of its previous engine.

This time, it's time idTech4 , which was used in Prey, in Quake 4 and, of course, in Doom 3. In just a few hours more than 400 forks of the repository on GitHub were created, people began to explore the internal mechanisms of the game or port it to other platforms. I also decided to participate and created a Intel version for Mac OS X , which John Carmack kindly advertised .

From the point of view of cleanliness and comments, this is the best release of the id Software code since the code base Doom iPhone (which was released later, and therefore commented better). I highly recommend that everyone learn this engine, collect it and experiment.

Here are my notes about what I understood. As usual, I cleaned them, I hope they save someone a couple of hours and encourage someone to study the code to improve their programming skills.
xially 5 october 2017, 14:04