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[Frama-c-discuss] Frama-C doesn't warn me about the illegal assignment of a variable

  • Subject: [Frama-c-discuss] Frama-C doesn't warn me about the illegal assignment of a variable
  • From: Claude.Marche at inria.fr (Claude Marche)
  • Date: Tue, 08 Dec 2009 17:08:18 +0100
  • In-reply-to: <7F579E29361D4048A9316F38A9D017EC367E17C356@EkkyoExch1.ekkyo.local>
  • References: <7F579E29361D4048A9316F38A9D017EC367E17C356@EkkyoExch1.ekkyo.local>
Damien Vidal wrote:
>
> Dear Frama-C users,
>
> I am using ?Frama-C? for the first time and I am doing some test cases 
> to know if my use of this tool is OK.
>
> I am working on the command ?@ assigns \nothing?. See my sample code 
> below:
>
> ########################################
>
> /*@ assigns \nothing;
>
> */
>
> void Compte_heure (unsigned int *fHeure)
>
> {
>
> *fHeure = (*fHeure)+1;
>
> }
>
> ########################################
>
> I want that Frama-C warns me about the non-wanted assignment of the 
> variable ?*fHeure?.
>
> My command line with Frama-C is ?frama-c-gui -slevel 15 -val *.c?
>
> If I use ?Fraam-C? with the plugin ?Jessie? and the automatic code 
> checker ?Alt-Ergo?, there is a warning for the assignment of the 
> variable ?*fHeure?.
>
> My command line with Frama-C is ?frama-c -jessie-gui -jessie-analysis 
> -jessie-atp simplify *.c ?
>
do not use both jessie-gui and "-jessie-atp simplify"

If you used the last version of Frama-C, this would be impossible 
(-jessie-gui disappeared)

> Do you know the way to have the warning statement displayed in Frama-C ?
>
The jessie plugin will not directly display the warning in Frama-C gui 
but in its own gui.

frama-c -jessie-gui -jessie-analysis *.c

or with beryllium 2:

frama-c -jessie *.c

will do it

- Claude
>
> Thanks,
>
> Best regards,
>
> Damien
>
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>
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-- 
Claude March?                          | tel: +33 1 72 92 59 69           
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