Re: Fold strstr (s, t) eq/ne s to strcmp (s, t) eq/ne 0 if strlen (t) is known

[Prathamesh Kulkarni]

On 5 December 2016 at 23:38, Bernd Schmidt <bschm...@redhat.com> wrote:
> On 12/05/2016 07:02 PM, Prathamesh Kulkarni wrote:
>>
>> This patch folds strstr (s, t) eq/ne s to strcmp (s, t) eq/ne 0 if
>> strlen (t) is known.
>
>
> That's not the same thing, is it?
>
> s = "hello world", t = "hello":
>   strstr (s, t) == s, but not strcmp (s, t) == 0.
>
> I think you'd want memcmp (s, t, strlen (t)) == 0.
Ah indeed! Dunno why I thought strstr (s, t) == strcmp (s, t) :(
Thanks for pointing out!
>
>
> Bernd
>