--- layout: fc_discuss_archives title: Message 13 from Frama-C-discuss on June 2017 ---
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[Frama-c-discuss] EVA postcondition propagation



When using a specification instead of a function, it seems that EVA propagates postconditions for double variables but not for float variables. With the following example, we obtain :
x in [-1.79769313486e+308 .. 1.79769313486e+308]
y in {1.}

/*@
  @ assigns \nothing;
  @ ensures \result == 1.0f;
  @*/
float foo();

/*@
  @ assigns \nothing;
  @ ensures \result == 1.0;
  @*/
double foo_d();

int main(int argc, char *argv[])
{
    float  x = foo();
    double y = foo_d();

    return 0;
}



Regards,

Arthur

--
  
Arthur CLAVIÈRE
Elève ingénieur SUPAERO - 2A
ISAE SUPAERO - Institut Supérieur de l'Aéronautique et de l'Espace
10 avenue Edouard Belin - BP 54032 - 31055 TOULOUSE CEDEX 4 FRANCE - http://www.isae-supaero.fr
Tel +33 5 61 33 80 80 - Fax (+33) 5 61 33 83 30
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