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[Frama-c-discuss] Acsl implicit cast Enumeration - integer

  • Subject: [Frama-c-discuss] Acsl implicit cast Enumeration - integer
  • From: victoria.moyalamiel at atosorigin.com (Victoria MOYA LAMIEL)
  • Date: Mon, 22 Feb 2010 10:50:03 +0100
Hello,

I have a question about the Jessie plugin concerning implicit casts 
between an enumerated type and integer one in Acsl.

1/ First of all, I've found some problems with the translation of this 
code by Jessie (test3.c) :

typedef enum{
  VRAI=1,
  FALSE=0
}T_BOOLEEN;

/*@logic T_BOOLEEN test (integer b)=
  @ (b==1)?
  @   (T_BOOLEEN)VRAI
  @   : (T_BOOLEEN) FALSE;
  @*/

/*@ensures \result == test(boo);
  @*/

T_BOOLEEN test(int boo)
{
  T_BOOLEEN b;

  if (boo==1)
    b = VRAI;
  else
    b= FALSE;

  return b;
}

What is wrong in this form ?

2/ The only way we found to translate it with Jessie was :

/*@logic T_BOOLEEN test (integer b)=
  @ (T_BOOLEEN)((b==1)?
  @   VRAI
  @   : FALSE);
  @*/

Nevertheless, this solution doesn't work with the integer model 
("-jessie-int-model exact").

Is there another way to express it or is it a problem on the Jessie plugin?

Thank you in advance.

Best regards,

Victoria
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