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Unintentional re-implementation of existing functionality is an issue frequently reported in practice and causes increased efforts for development and maintenance. However, instances are hard to find with existing approaches. For practitioners, this increases maintenance risks, such as inconsistent bug fixing, and hinders quality improvement efforts. For researchers, this hinders a reliable quantification...
Software systems contain unnecessary code. Its maintenance causes unnecessary costs. We present tool-support that employs dynamic analysis of deployed software to detect unused code as an approximation of unnecessary code, and static analysis to reveal its changes during maintenance. We present a case study on maintenance of unused code in an industrial software system over the course of two years...
The C preprocessor cpp is a powerful and language-independent tool, widely used to implement variable software in different programming languages (C, C++) using conditional compilation. Preprocessor annotations can used on different levels of granularity such as functions or statements. In this paper, we investigate whether there is a relation between code clones and preprocessor annotations. Specifically,...
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