Cscope is an interactive text screen based source browsing tool. Although it is primarily designed to search C code (including lex and yacc files), it can also be used for C++ code.

Using cscope, you can easily search for where symbols are used and defined. Cscope is designed to answer questions like:

- Where is this variable used? - What is the value of this preprocessor symbol? - Where is this function in the source files? - What functions call this function? - What functions are called by this function? - Where does the message "out of space" come from? - Where is this source file in the directory structure? - What files include this header file?