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[Frama-c-discuss] Usage of the WP plugin with standard lib

  • Subject: [Frama-c-discuss] Usage of the WP plugin with standard lib
  • From: pini at (Pierre-Nicolas Clauss)
  • Date: Tue, 24 May 2011 17:15:40 +0200
  • In-reply-to: <>
  • References: <20110524144910.GA8848@Nimbus> <>

Le Tuesday 24 May 2011 ? 17:07:21 (+0200), Pascal Cuoq a ?crit :
> Variadic functions are outside the scope of what Frama-C
> handles well, and this time I am saying "Frama-C" because
> since no plug-in tries very hard to do something with them
> there probably are issues in the front-end itself related to
> variadic functions.
> If the function is used only once, give it a non-variadic prototype
> and specification. If it is used several times with varying
> prototypes, declare and use a different function per prototype.
> You will have to specify each of these functions, and, if you wish
> to continue being able to compile and execute the program,
> to implement it with a direct call to the variadic function.
> These functions should remain outside the scope of the
> verification.

Ok, I'll go for this. As for now, I have very little code that is
impacted, so I got define a special macro (through -cpp-extra-args) that
would use specialized prototypes instead of including the standard header
file (with #ifdef/#else/#endif).

I sometimes use the same kind of tricks when running doxygen over twisted

> I should point out that the substitution standard headers
> provided with Frama-C have received very little testing, as you
> have noticed already.

Ok, I'll have a look at the provided annotations to write my own prototypes
for the functions of the standard lib that I use.

Thanks for your help.


Pierre-Nicolas Clauss
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