mainGNU cflow - Summary

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Id: #7443
System Name: cflow
Name: GNU cflow
Group Type: Official GNU software

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This project is part of the GNU Project.

GNU cflow analyzes a collection of C source files and prints a graph charting control flow within the program.

Current implementation 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.

The package also provides Emacs major mode for examining the produced flowcharts in Emacs.

Registration Date: Sat 19 Mar 2005 10:02:38 PM UTC
License: GNU General Public License v3 or later
Development Status: 5 - Production/Stable


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Version 1.4 released
     posted by gray, Tue 11 Oct 2011 09:08:54 PM UTC - 0 replies

GNU cflow version 1.4 is available for download.

The most important changes in this version are:

  • Symbol aliases
  • New syntactic class: qualifiers
  • Speed up recursive call detection.
  • Fix parsing of typedefs after struct.
  • Fix the output of branch marks in tree mode.
  • Fix processing of static inline functions (RH bug 650716).
GNU cflow 1.3 released
     posted by gray, Sat 11 Jul 2009 08:40:02 PM UTC - 0 replies

GNU cflow 1.3 is available for download from Compared with the previous release, this version offers a considerable performance gain.

GNU cflow 1.2 (GPLv3)
     posted by gray, Fri 29 Jun 2007 08:55:53 PM UTC - 0 replies

GNU cflow 1.2 was released today. Starting from this release, the package is licensed under the GNU General Public License version 3.

GNU cflow 1.1 available
     posted by gray, Sun 09 Jul 2006 08:47:45 AM UTC - 2 replies

The version 1.1 is a maintenance release fixing bugs found so far. It is available from, and from the mirrors worldwide (see, for the list). ...

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