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We've expanded our Perl news coverage and improved our search! Search for all things Perl across O'Reilly! Search Search Tips Perl Resources | Topic: Debugging DDD - The Data Display Debugger The Data Display Debugger (DDD) is a popular graphical user interface for command-line debuggers such as GDB, DBX, JDB, WDB, and XDB. It now supports the Perl debugger! Besides %22usual%22 front-end features such as viewing source texts, DDD got famous for its interactive graphical data display, where data structures are displayed as graphs. A simple mouse click dereferences pointers or views structure contents, updated each time the program stops. Using DDD, you can reason about your application by watching its data, not just by viewing it execute lines of source code.

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