Data Display Debugger, or DDD, is a popular free software (under the GNU GPL) graphical user interface (using the Motif toolkit) for command-line debuggers such as GDB, DBX, JDB, HP Wildebeest Debugger (WDB), XDB, the Perl debugger, the Bash debugger, the Python debugger, and the GNU Make debugger. DDD is an entry in the GNU Project.
DDD has GUI front-end features such as viewing source texts and 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.
DDD is used primarily on Unix systems, and its usefulness is complemented by many open source plug-ins available for it.
Famous quotes containing the words data and/or display:
“To write it, it took three months; to conceive it three minutes; to collect the data in it—all my life.”
—F. Scott Fitzgerald (1896–1940)
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Mind when I meet with it in any guise.
No one can know how glad I am to find
On any sheet the least display of mind.”
—Robert Frost (1874–1963)