tool to show diagramatic representation of c code

Question

Hi,

Is there any tool to show diagrammatic rep of flow of program if we input a C file?

Thanks.

Answer 1

If it doesn't have to strictly be a graphical flow chart, GNU cflow indicates the entire call tree for C source files.

Answer 2

I have used Visustin in the past

Answer 3

Software Blacksmiths has sold one commercially for a long time. I can't say much about it currently though -- it's probably a fair guess that the OS/2 version I used has been discontinued by now. Software Blacksmiths still appears to be in business though -- a quick check turns up a web site anyway.

Glancing at the web site, it looks like relatively little has changed since I used it (even the OS/2 version still seems to be available). That being the case, I'd say it falls into the "fairly harmless" category, which is the best any flow charting tool can achieve.

Answer 4

For an open source workflow to do this, use GNU cflow to generate a call graph in text format. Then Cflow2vcg can convert the output into an intermediate graph format that Graphviz can use to generate an image for you.