[ 源代码： cflow ]
软件包：cflow-doc（1:1.6-4）
control flow analyzer for C source files (documentation)
GNU cflow analyzes a collection of C source files and prints a graph, charting control flow within the program.
GNU cflow is able to produce both direct and inverted flowgraphs for C sources. Optionally a cross-reference listing can be generated. Two output formats are implemented: POSIX and GNU (extended).
Input files can optionally be preprocessed before analyzing.