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Re: [csmith-dev] Generate two slightly different files

There's no facility for this in Csmith, and it wouldn't be easy to implement.

The kind of tool you are looking for is one that supports mutation-based testing. I don't have one in mind but a google search on that term will probably turn something up.


On 4/28/16 5:37 PM, Christian Dietrich wrote:

I'm currently searching for a tool to generate two C files that
are very similar. What do I mean by similar? The respective AST of the C
files should only differ in one subexpression/type/etc. The difference
should mimic the changes a developer does between two compiler

Does csmith already allow such small alterations of its output? If so, I
haven't seen an command line option for it. If it doesn't have this
feature, could you give me a small hint where I should look to implement
this behavior?