10 Ways to Bring Code Quality Up to Scratch

Author: Gilad David Maayan

Code quality is a set of practices and standards that can help you achieve structural and functional software quality. You can use code quality metrics, tools, and practices to standardize collaboration attributes and maintain high product quality through continuous testing.

Code quality can also help promote the use of best practices through regularly updated documentation, as well as help you enforce standard refactoring practices. Read on to learn nine methods of implementing and improving code quality practices and processes.

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Kodi

Kodi

Missed semicolon

PVS-Studio warning: V504 It is highly probable that the semicolon ‘;’ is missing after ‘return’ keyword. AdvancedSettings.cpp:1476

void CAdvancedSettings::SetExtraArtwork(const TiXmlElement* arttypes,
   std::vector& artworkMap)
{
  if (!arttypes)
    return
  artworkMap.clear();
  const TiXmlNode* arttype = arttypes->FirstChild("arttype");
  ....
}

The code formatting suggests the following execution logic:

  • if arttypes is a null pointer, the method returns;
  • if arttypes is a non-null pointer, the artworkMap vector gets cleared and some actions are then performed.

But the missing ‘;’ character breaks it all, and the actual execution logic is as follows:

  • if arttypes is a null pointer, the artworkMap vector gets cleared and the method returns;
  • if arttypes is a non-null pointer, the program executes whatever actions come next but the artworkMap vector doesn’t get cleared.

To cut a long story short, this situation does look like a bug. After all, you hardly expect anyone to write expressions like return artworkMap.clear(); :).

Please click here to see more bugs from this project.

Search for Bugs in Code at the Early Stage

Every developer knows about a debugger, version control system or, for example, unit-tests. Nevertheless, not all developers are familiar with the methodology of static code analysis. Meanwhile, the technology becomes an integral part of the development cycle of programs. I would like to suggest a small introductory course for anyone interested in modern development trends.

search for bugs

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Myths about static analysis. The fifth myth – a small test program is enough to evaluate a tool

This is how this statement looks in discussions on forums (this is a collective image):

I’ve written a special program, its size is 100 code lines. But the analyzer doesn’t generate anything although all the warning levels are enabled. This [tool of yours] / [static analysis] in general is just rubbish.

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Myths about static analysis. The third myth – dynamic analysis is better than static analysis

The statement is rather strange. Dynamic and static analyses are just two different methodologies which supplement each other. Programmers seem to understand it, but I hear it again and again that dynamic analysis is better than static analysis.

Let me list advantages of static code analysis.

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