On Wed, Nov 16, 2016 at 12:06:39PM -0600, Nico Williams wrote:
> On Tue, Nov 15, 2016 at 09:38:11PM -0200, Bernardo Sulzbach wrote:
> > if( s1>7 && s2>7 ){
> > res = s1 - s2;
> > }else{
> > if( s1==s2 ){
> > // Accesses to aLen as mentioned above
> >
> > If s1 > 7 && s2 > 7 is false, then at least one of s1 and s2 is not above 7.
> > If they are equal, then neither s1 nor s2 is above 7.
>
> 7 is past the end of the array.
>
> > > and we also know that either s1 or s2 can be 8 or 9,
> >
> > This is false, unless I am mistaken. See my reasoning above.
> >
> > The issue is valid, and the message your analyzer (or compiler) wrote is
> > correct: it is not guaranteed to be < 7, which it should be.
>
> Right.
Er, no, wrong: it has to be < 7 given the assertions and the if
conditions. I should have read Dan Kennedy's response first.
Nico
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