[PATCH] PR64903 fix number of predicate tests in std::is_partitioned

[Jonathan Wakely]

On 19/01/17 19:08 -0500, Tim Song wrote:
>On Thu, Jan 19, 2017 at 6:33 PM, Jonathan Wakely <jwakely@redhat.com> wrote:
>> std::advance(__first, 1);
>
>Why not just ++__first;?

Good question. I have no idea why I did it like that!