How to detect code duplication during development?

c++ code-duplication
David Dibben picture David Dibben · Oct 10, 2008 · Viewed 28.2k times · Source

We have a fairly large code base, 400K LOC of C++, and code duplication is something of a problem. Are there any tools which can effectively detect duplicated blocks of code?

Ideally this would be something that developers could use during development rather than just run occasionally to see where the problems are. It would also be nice if we could integrate such a tool with CruiseControl to give a report after each check in.

I had a look at Duploc some time ago, it showed a nice graph but requires a smalltalk environment to use it, which makes running it automatically rather difficult.

Free tools would be nice, but if there are some good commercial tools I would also be interested.

Answer

Simon Steele picture Simon Steele · Oct 10, 2008

Simian detects duplicate code in C++ projects.

Update: Also works with Java, C#, C, COBOL, Ruby, JSP, ASP, HTML, XML, Visual Basic, Groovy source code and even plain text files

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