Re: [PATCH v3 4/6] stdlib: Sync canonicalize with gnulib [BZ #10635] [BZ #26592] [BZ #26341] [BZ #24970]

[Paul Eggert]

On 1/4/21 4:52 AM, Adhemerval Zanella wrote:
> The extra comparison might avoid the scratch_buffer resize that will
> fail (since malloc will fail to try allocate PTRDIFF_MAX object), but
> it will be used only when such objects are provided (which depending
> of the system should not happen).

As you say, that comparison isn't needed for glibc. It's also not needed 
on non-glibc because Gnulib prevents malloc etc. from succeeding on 
sizes greater than PTRDIFF_MAX. So we should be OK here.