mysql-diff is a commandline database structure comparator. It compares the structure of two databases. It currently works with MySQL. A database can be specified as an SQL script or as an URL to a running database. So the tool can compare two scripts, two live databases, or a database and a script. The tool outputs SQL DDL script that can be used to convert one schema to another.
CScout is a source code analyzer and refactoring browser for collections of C programs. It can process workspaces of multiple projects, mapping the complexity introduced by the C preprocessor back into the original C source code files. CScout performs an analysis of C source code that is more detailed and accurate than current compilers and linkers, as it takes into account the identifier scopes introduced by the C preprocessor and the C language proper scopes and namespaces.
AntiCutAndPaste is designed to search for text fragments that have been copied and pasted in programming language source code or plain text. It has been tested on sources from large C++, Pascal, Java, and C# (Mono) projects. The algorithms used are very fast and can handle up to three million C++ code lines in one minute. Minor modifications of code are ignored during the search. Reports are sorted conveniently by the total size of all similar fragments and there are many report customization options.