RC-Finder: Redundancy Detection for Large Scale Source Code

Redundant code not only causes noise in code debugging which confuses developers, but also correlates with the presence of traditional severe software errors. RC-Finder, a redundancy detection system for large-scale code is proposed to detect six kinds of redundancy. This paper analyzes each kind of redundant code, and provides the detailed algorithm respectively. The experiments on large scale open source software systems show that RC-Finder can find redundant code efficiently. With RC-Finder, it is very convenient for developers to detect and correct these kinds of defects, and thereby to further guarantee the software quality.